Butalbital, aspirin, and caffeine interactions

Butalbital, aspirin, and caffeine (Fiorinal), a barbiturate has 560 documented interactions across the FDA labels and fact sheets we index: 172 major, 351 moderate, 30 minor, and 7 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.

Interactions from the label

Major interactions (172)

  • AbrocitinibJAK inhibitorMajor

    CIBINQO is contraindicated in patients taking antiplatelet therapies, except for low-dose aspirin (≤81 mg daily), during the first 3 months of treatment [see Warnings and Precautions (5.7) , Drug Interactions (7.2) , and Clinical Pharmacology (12.2) ]. (Abrocitinib label, Contraindications)

  • Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Acetaminophen and codeine label, Boxed warning)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Acetazolamidecarbonic anhydrase inhibitorMajor

    Caution is advised for patients receiving concomitant high-dose aspirin and acetazolamide, as anorexia, tachypnea, lethargy, metabolic acidosis, coma, and death have been reported. (Acetazolamide label, Warnings)

  • AdenosineantiarrhythmicMajor

    Use of methylxanthines (e.g., caffeine, aminophylline and theophylline) is not recommended in patients who experience a seizures in association with adenosine injection ( 5.6 ) (Adenosine label, Warnings and precautions)

  • Albuterolbeta-adrenergic agonistMajor

    Do Not Exceed Recommended Dose Fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs in patients with asthma. (Albuterol label, Warnings and precautions)

  • AlcoholAlcoholMajor

    Combining alcohol with sedating medicines (opioids, benzodiazepines, sleep medicines, muscle relaxants) can cause dangerous drowsiness, slowed breathing, and overdose. (NIAAA, Harmful Interactions: Mixing Alcohol with Medicines)

  • AlprazolambenzodiazepineMajor

    • Effects on Driving and Operating Machinery: Patients receiving • alprazolam XR should be cautioned against operating machinery or driving a motor vehicle, as well as avoiding concomitant use of alcohol and other central nervous system (CNS) depressant drugs. (Alprazolam label, Warnings and precautions)

  • AmphetamineCNS stimulantMajor

    Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products [ see Adverse Reactions (6) ] . (Amphetamine label, Contraindications)

  • Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products [see Adverse Reactions ( 6.2 )] . taking monoamine oxidase inhibitors (MAOIs), or within 14 days of stopping MAOIs (including MAOIs such as linezolid or intravenous methylene blue), because of an increased risk of hypertensive… (Amphetamine and dextroamphetamine label, Contraindications)

  • ApixabananticoagulantMajor

    …risk of developing epidural or spinal hematomas in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as nonsteroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants • a history of traumatic or repeated epidural or spinal punctures • a history of spinal deformity… (Apixaban label, Boxed warning)

  • Arformoterolbeta-adrenergic agonistMajor

    Excessive Use of Arformoterol Tartrate Inhalation Solution and Use with Other Long-Acting Beta2-Agonists Fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Arformoterol label, Warnings and precautions)

  • AspirinNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Aspirin and dipyridamoleantiplatelet agentMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • AtazanavirantiretroviralMajor

    Antiplatelets: ticagrelor ↑ ticagrelor Coadministration with ticagrelor is not recommended due to potential increase in the risk of dyspnea, bleeding and other adverse events associated with ticagrelor. clopidogrel ↓ clopidogrel active metabolite Coadministration of REYATAZ (with or without ritonavir) and clopidogrel is not recommended. (Atazanavir label, Drug interactions)

  • Azelastine and fluticasoneantihistamineMajor

    • Avoid concurrent use of alcohol or other central nervous system (CNS) depressants with azelastine hydrochloride and fluticasone propionate nasal spray because further decreased alertness and impairment of CNS performance may occur. (Azelastine and fluticasone label, Warnings and precautions)

  • …AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL EXPOSURE; NEONATAL OPIOD WITHDRAWAL SYNDROME; and RISKS FROM CONCOMITANT USE WITH ALCOHOL, BENZODIAZEPINES OR OTHER CNS DEPRESSANTS Addiction, Abuse, and Misuse Belladonna and opium suppositories expose patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to… (Belladonna and opium label, Boxed warning)

  • BenzphetamineCNS stimulantMajor

    Benzphetamine Hydrochloride Tablets should not be used concomitantly with other CNS stimulants. (Benzphetamine label, Contraindications)

  • Bismuth subsalicylatesalicylateMajor

    Do not take if you are allergic to salicylates (including aspirin) taking other salicylate products Do not use if you have an ulcer a bleeding problem bloody or black stool Ask a doctor before use if you have fever mucus in the stool Ask a doctor or pharmacist before use if you are taking any drug for diabetes gout arthritis anticoagulation (thinning the blood)… (Bismuth subsalicylate label, Warnings)

  • Budesonide and formoterolcorticosteroidMajor

    Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Budesonide and formoterol label, Warnings and precautions)

  • BuprenorphineopioidMajor

    Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Buprenorphine label, Boxed warning)

  • BupropionantidepressantMajor

    Bupropion hydrochloride extended-release tablets (XL) are contraindicated in patients undergoing abrupt discontinuation of alcohol, benzodiazepines, barbiturates, and antiepileptic drugs [see Warnings and Precautions (5.3) and Drug Interactions (7.3)] . (Bupropion label, Contraindications)

  • Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Butalbital, acetaminophen, caffeine, and codeine label, Boxed warning)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • ButorphanolopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Butorphanol label, Boxed warning)

  • CarbamazepineanticonvulsantMajor

    CNS Depressants The concomitant use of EQUETRO and other CNS depressants can increase the risk of respiratory depression, profound sedation, hypotension, and syncope. (Carbamazepine label, Drug interactions)

  • CarbinoxamineantihistamineMajor

    Avoid concurrent use of Carbinoxamine Maleate Extended-Release Oral Suspension with alcohol or other central nervous system depressants because additional impairment of central nervous system performance may occur. (Carbinoxamine label, Warnings and precautions)

  • CelecoxibNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • CetirizineantihistamineMajor

    Avoid concurrent use of QUZYTTIR with alcohol or other CNS depressants because additional reduction in alertness and additional impairment of CNS performance may occur. (Cetirizine label, Warnings and precautions)

  • ChlordiazepoxidebenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Chlordiazepoxide label, Warnings)

  • Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Chlordiazepoxide and clidinium label, Warnings)

  • ChlorpromazineantipsychoticMajor

    Do not use in comatose states or in the presence of large amounts of central nervous system depressants (alcohol, barbiturates, narcotics, etc.). (Chlorpromazine label, Contraindications)

  • CidofovirantiviralMajor

    Nephrotoxic agents Concomitant administration of cidofovir injection and agents with nephrotoxic potential [e.g., intravenous aminoglycosides (e.g., tobramycin, gentamicin, and amikacin), amphotericin B, foscarnet, intravenous pentamidine, vancomycin, and nonsteroidal anti-inflammatory agents] is contraindicated. (Cidofovir label, Drug interactions)

  • CiprofloxacinfluoroquinoloneMajor

    Serious Adverse Reactions with Concomitant Theophylline Serious and fatal reactions have been reported in patients receiving concurrent administration of ciprofloxacin and theophylline. (Ciprofloxacin label, Warnings and precautions)

  • ClobazambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Clobazam label, Warnings and precautions)

  • ClonazepambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Clonazepam label, Warnings)

  • Clonidinealpha-adrenergic agonistMajor

    Avoid use with other central nervous system (CNS) depressants ( 5.3 ) (Clonidine label, Warnings and precautions)

  • ClorazepatebenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Clorazepate label, Warnings)

  • Cocainelocal anestheticMajor

    WARNING: ABUSE AND DEPENDENCE CNS stimulants, including cocaine hydrochloride, have a high potential for abuse and dependence. (Cocaine label, Boxed warning)

  • CodeineopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Codeine label, Boxed warning)

  • Cyclobenzaprinemuscle relaxantMajor

    Based on its structural similarity to TCAs, concomitant use of TONMYA with: MAO inhibitors may be life-threatening [see Contraindications (4) ] , Alcohol, barbiturates, and other CNS depressants may increase the risk of adverse reactions associated with these drugs, Tramadol may increase the seizure risk, Guanethidine or other similar acting drugs may block the… (Cyclobenzaprine label, Drug interactions)

  • DabigatrananticoagulantMajor

    …the risk of developing epidural or spinal hematomas in these patients include: use of indwelling epidural catheters concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants a history of traumatic or repeated epidural or spinal punctures a history of spinal deformity… (Dabigatran label, Boxed warning)

  • DarunavirantiretroviralMajor

    …elbasvir/grazoprevir Lipid modifying agents: lomitapide, lovastatin, simvastatin Opioid Antagonist: naloxegol PDE-5 inhibitor: sildenafil when used for treatment of pulmonary arterial hypertension Sedatives/hypnotics: orally administered midazolam, triazolam Co-administration of PREZISTA/ritonavir is contraindicated with drugs that are highly dependent on CYP3A for clearance… (Darunavir label, Contraindications)

  • Darunavir and cobicistatantiretroviralMajor

    …elbasvir/grazoprevir Lipid modifying agents: lomitapide, lovastatin, simvastatin Opioid Antagonist: naloxegol PDE-5 inhibitor: sildenafil when used for treatment of pulmonary arterial hypertension Sedatives/hypnotics: orally administered midazolam, triazolam PREZCOBIX or PREZCOBIX PED is contraindicated in patients receiving certain co-administered drugs for which altered plasma… (Darunavir and cobicistat label, Contraindications)

  • Deferasiroxiron supplementMajor

    Avoid the use of Exjade with CYP1A2 substrate theophylline. (Deferasirox label, Drug interactions)

  • DextroamphetamineCNS stimulantMajor

    Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products [see Adverse Reactions ]. (Dextroamphetamine label, Contraindications)

  • DiazepambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Diazepam label, Warnings)

  • Dichlorphenamidecarbonic anhydrase inhibitorMajor

    …contraindicated in the following circumstances: Hypersensitivity to dichlorphenamide or other sulfonamides [see Warnings and Precautions (5.1) ] Concomitant use of KEVEYIS and high dose aspirin [see Warnings and Precautions (5.2) and Drug Interactions (7.1) ] Severe pulmonary disease, limiting compensation to metabolic acidosis caused by KEVEYIS [see Warnings and Precautions… (Dichlorphenamide label, Contraindications)

  • DiclofenacNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • DiflunisalNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Dimethyl fumarateimmunosuppressantMajor

    Serious Gastrointestinal Reactions Serious gastrointestinal reactions, including perforation, ulceration, hemorrhage, and obstruction, some with fatal outcomes, have been reported in the postmarketing setting with the use of fumaric acid esters, including TECFIDERA, with or without concomitant aspirin use. (Dimethyl fumarate label, Warnings and precautions)

  • CONTRAINDICATIONS Diphenoxylate hydrochloride and atropine sulfate is contraindicated in: • Pediatric patients less than 6 years of age due to the risks of respiratory and central nervous system (CNS) depression (see WARNINGS ). (Diphenoxylate and atropine label, Contraindications)

  • Doxylamine and pyridoxineantihistamineMajor

    Central nervous system (CNS) depressants: Concurrent use with alcohol or other CNS depressants is not recommended ( 5.1 ) (Doxylamine and pyridoxine label, Warnings and precautions)

  • DronabinolcannabinoidMajor

    Avoid concomitant use of other drugs that are also associated with similar cardiac effects (e.g., amphetamines, other sympathomimetic agents, atropine, amoxapine, scopolamine, antihistamines, other anticholinergic agents, amitriptyline, desipramine, other tricyclic antidepressants). (Dronabinol label, Warnings and precautions)

  • EdoxabananticoagulantMajor

    …the risk of developing epidural or spinal hematomas in these patients include: use of indwelling epidural catheters concomitant use of other drugs that affect hemostasis, such as nonsteroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants a history of traumatic or repeated epidural or spinal punctures a history of spinal deformity… (Edoxaban label, Boxed warning)

  • Avoid SYMFI with concurrent or recent use of a nephrotoxic agent (e.g., high-dose or multiple non-steroidal anti-inflammatory drugs [NSAIDs]) [see Drug Interactions (7.3) ] . (Efavirenz, lamivudine, and tenofovir label, Warnings and precautions)

  • …Lipid-modifying Agents: lomitapide, lovastatin, simvastatin Phosphodiesterase-5 (PDE-5) Inhibitor: sildenafil when administered as REVATIO ® for the treatment of pulmonary arterial hypertension Sedative/hypnotics: triazolam, orally administered midazolam Coadministration of GENVOYA is contraindicated with drugs that: Are highly dependent on CYP3A for clearance and for which… (Elvitegravir, cobicistat, emtricitabine, and tenofovir label, Contraindications)

  • COMPLERA should be avoided with concurrent or recent use of a nephrotoxic agent (e.g., high-dose or multiple nonsteroidal anti-inflammatory drugs [NSAIDs]) [see Drug Interactions (7.4) ]. (Emtricitabine, rilpivirine, and tenofovir label, Warnings and precautions)

  • EnoxaparinanticoagulantMajor

    …the risk of developing epidural or spinal hematomas in these patients include: Use of indwelling epidural catheters Concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, and other anticoagulants A history of traumatic or repeated epidural or spinal punctures A history of spinal deformity… (Enoxaparin label, Boxed warning)

  • EpinephrinesympathomimeticMajor

    …hormones Diuretics Cardiac glycosides, such as digitalis glycosides Quinidine Drugs potentiating hypokalemic effects of epinephrine • Potassium depleting diuretics • Corticosteroids • Theophylline Epinephrine should not be used to counteract circulatory collapse or hypotension caused by phenothiazines, as a reversal of the pressor effects of epinephrine may result… (Epinephrine label, Drug interactions)

  • EstazolambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Estazolam label, Warnings)

  • Eszopiclonesedative-hypnoticMajor

    The use of LUNESTA with other sedative-hypnotics at bedtime or the middle of the night is not recommended. (Eszopiclone label, Warnings and precautions)

  • EtodolacNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • FenoprofenNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • FentanylopioidMajor

    • Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Fentanyl label, Boxed warning)

  • Ferric citratephosphate binderMajor

    Table 2: Oral drugs that can be administered concomitantly with Ferric Citrate Tablets Amlodipine Aspirin Atorvastatin Calcitriol Clopidogrel Digoxin Diltiazem Doxercalciferol Enalapril Fluvastatin Glimepiride Levofloxacin Losartan Metoprolol Pravastatin Propranolol Sitagliptin Warfarin Oral drugs that have to be separated from Ferric Citrate Tablets and meals… (Ferric citrate label, Drug interactions)

  • FlurbiprofenNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Fluticasone and salmeterolcorticosteroidMajor

    Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Fluticasone and salmeterol label, Warnings and precautions)

  • FondaparinuxanticoagulantMajor

    …risk of developing epidural or spinal hematomas in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, or other anticoagulants • a history of traumatic or repeated epidural or spinal puncture • a history of spinal deformity… (Fondaparinux label, Boxed warning)

  • Formoterolbeta-adrenergic agonistMajor

    Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Formoterol label, Warnings and precautions)

  • FosamprenavirantiretroviralMajor

    …Hypericum perforatum ) Lipid modifying agents: Lomitapide, lovastatin, simvastatin Non-nucleoside reverse transcriptase inhibitor: Delavirdine PDE5 inhibitor: Sildenafil (Revatio) (for treatment of pulmonary arterial hypertension) Sedative/hypnotics: Midazolam, triazolam Hypersensitivity to fosamprenavir calcium or amprenavir (e.g., Stevens-Johnson syndrome). (Fosamprenavir label, Contraindications)

  • GabapentinanticonvulsantMajor

    • Respiratory Depression: May occur with NEURONTIN when used with concomitant central nervous system (CNS) depressants, including opioids, or in the setting of underlying respiratory impairment. (Gabapentin label, Warnings and precautions)

  • HydrocodoneopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Hydrocodone label, Boxed warning)

  • Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Hydrocodone and acetaminophen label, Boxed warning)

  • …ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; MEDICATION ERRORS; CYTOCHROME P450 3A4 INTERACTION; CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; INTERACTION WITH ALCOHOL; NEONATAL OPIOID WITHDRAWAL SYNDROME WARNING: ADDICTION, ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION;… (Hydrocodone and chlorpheniramine label, Boxed warning)

  • …ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; MEDICATION ERRORS; CYTOCHROME P450 3A4 INTERACTION; CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; INTERACTION WITH ALCOHOL; NEONATAL OPIOID WITHDRAWAL SYNDROME Addiction, Abuse, and Misuse Hydrocodone bitartrate and homatropine methylbromide exposes patients and… (Hydrocodone and homatropine label, Boxed warning)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • HydromorphoneopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death . (Hydromorphone label, Boxed warning)

  • HydroxyzineantihistamineMajor

    Rarely, cardiac arrests and death have been reported in association with the combined use of hydroxyzine hydrochloride intramuscularly and other CNS depressants. (Hydroxyzine label, Precautions)

  • IbuprofenNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Imipraminetricyclic antidepressantMajor

    Avoid the use of preparations, such as decongestants and local anesthetics, that contain any sympathomimetic amine (e.g., epinephrine, norepinephrine), since it has been reported that tricyclic antidepressants can potentiate the effects of catecholamines. (Imipramine label, Drug interactions)

  • IndomethacinNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Ipratropium and albuterolanticholinergicMajor

    DO NOT EXCEED RECOMMENDED DOSE Fatalities have been reported in association with excessive use of inhaled products containing sympathomimetic amines and with the home use of nebulizers. (Ipratropium and albuterol label, Warnings)

  • Itraconazoleazole antifungalMajor

    Anticoagulants and Antiplatelets Ticagrelor Contraindicated during and 2 weeks after TOLSURA treatment. (Itraconazole label, Drug interactions)

  • KetamineCNS depressantMajor

    Theophylline or Aminophylline : Do not co-administer with KETALAR as concomitant use may lower the seizure threshold ( 7.1 ). (Ketamine label, Drug interactions)

  • Ketoconazoleazole antifungalMajor

    This may potentiate and prolong hypnotic and sedative effects, especially with repeated dosing or chronic administration of these agents. (Ketoconazole label, Contraindications)

  • KetoprofenNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • KetorolacNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Latanoprostprostaglandin analogMajor

    The combined use of two or more prostaglandins, or prostaglandin analogs including XELPROS is not recommended. (Latanoprost label, Drug interactions)

  • Levalbuterolbeta-adrenergic agonistMajor

    Do Not Exceed Recommended Dose Fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs in patients with asthma. (Levalbuterol label, Warnings and precautions)

  • LevocetirizineantihistamineMajor

    Avoid concurrent use of alcohol or other central nervous system depressants with XYZAL. (Levocetirizine label, Warnings and precautions)

  • LevorphanolopioidMajor

    Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Levorphanol label, Boxed warning)

  • Levothyroxine and liothyroninethyroid hormoneMajor

    Larger doses may produce serious or even life-threatening manifestations of toxicity, particularly when given in association with sympathomimetic amines such as those used for their anorectic effects. (Levothyroxine and liothyronine label, Boxed warning)

  • Liothyroninethyroid hormoneMajor

    • Larger doses may produce serious or even life-threatening manifestations of toxicity, particularly when given in association with sympathomimetic amines such as those used for their anorectic effects [see Adverse Reactions (6) , Drug Interactions (7.7) , and Overdosage (10) ] . (Liothyronine label, Boxed warning)

  • Lopinavir and ritonavirantiretroviralMajor

    …Non-opioid Analgesic (selective blocker of Nav1.8 sodium channels): suzetrigine PDE5 Inhibitor: sildenafil (Revatio ® ) when used for the treatment of pulmonary arterial hypertension Sedative/Hypnotics: triazolam, orally administered midazolam KALETRA is contraindicated with drugs that are potent CYP3A inducers where significantly reduced lopinavir plasma concentrations… (Lopinavir and ritonavir label, Contraindications)

  • LorazepambenzodiazepineMajor

    Caution patients receiving LOREEV XR against operating machinery or driving a motor vehicle as well to avoid the concomitant use of alcohol and other CNS depressant drugs during treatment ( 5.4 , 7 ) (Lorazepam label, Warnings and precautions)

  • LoxapineantipsychoticMajor

    CONTRAINDICATIONS Loxapine is contraindicated in comatose or severe drug-induced depressed states (alcohol, barbiturates, narcotics, etc.). Loxapine is contraindicated in individuals with known hypersensitivity to dibenzoxazepines. (Loxapine label, Contraindications)

  • Mefenamic acidNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • MeloxicamNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Warnings For external use only Allergy alert: do not use if you are allergic to salicylates (including aspirin) unless directed by a doctor. (Menthol and methyl salicylate label, Warnings)

  • MeperidineopioidMajor

    Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Meperidine label, Boxed warning)

  • Metaxalonemuscle relaxantMajor

    If concomitant use with another CNS depressant is warranted, closely monitor for signs of respiratory depression and sedation, particularly during treatment initiation and dosage increases. (Metaxalone label, Warnings and precautions)

  • MethadoneopioidMajor

    Managing Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, is a risk factor for respiratory depression and death [see Warnings and Precautions ( 5.2 )]. (Methadone label, Boxed warning)

  • MethamphetamineCNS stimulantMajor

    Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products [see Adverse Reactions ( 6 )]. taking monoamine oxidase inhibitors (MAOIs), or within 14 days following discontinuation of treatment with an MAOIs (including MAOIs such as linezolid or intravenous methylene blue), because… (Methamphetamine label, Contraindications)

  • Methazolamidecarbonic anhydrase inhibitorMajor

    Caution is advised for patients receiving high-dose aspirin and methazolamide concomitantly, as anorexia, tachypnea, lethargy, coma, and death have been reported with concomitant use of high-dose aspirin and carbonic anhydrase inhibitors. (Methazolamide label, Warnings)

  • MethotrexateimmunosuppressantMajor

    Unexpectedly severe and fatal gastrointestinal toxicity can occur with concomitant administration of XATMEP (primarily at high dosage) and nonsteroidal anti-inflammatory drugs (NSAIDs) [see Drug Interactions ( 7.1 )] . (Methotrexate label, Warnings and precautions)

  • MidazolambenzodiazepineMajor

    WARNING: PERSONNEL AND EQUIPMENT FOR MONITORING AND RESUSCITATION AND RISKS FROM CONCOMITANT USE WITH OPIOID ANALGESICS AND OTHER SEDATIVE-HYPNOTICS Personnel and Equipment for Monitoring and Resuscitation Only personnel trained in the administration of procedural sedation, and not involved in the conduct of the diagnostic or therapeutic procedure, should administer… (Midazolam label, Boxed warning)

  • Misoprostolprostaglandin analogMajor

    MISOPROSTOL SHOULD NOT BE TAKEN BY PREGNANT WOMEN TO REDUCE THE RISK OF ULCERS INDUCED BY NONSTEROIDAL ANTI-INFLAMMATORY DRUGS (NSAIDs) (see CONTRAINDICATIONS , WARNINGS , and PRECAUTIONS ). (Misoprostol label, Boxed warning)

  • Montelukastleukotriene receptor antagonistMajor

    Patients with known aspirin sensitivity should continue to avoid aspirin or non-steroidal anti-inflammatory agents while taking SINGULAIR ( 5.4 ). (Montelukast label, Warnings and precautions)

  • MorphineopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Morphine label, Boxed warning)

  • NabumetoneNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • NalbuphineopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Nalbuphine label, Boxed warning)

  • Nalmefeneopioid antagonistMajor

    Risk of Recurrent Respiratory and CNS Depression : A recurrence of respiratory depression is possible, therefore, keep the patient under continued surveillance and administer repeat doses of ZURNAI using a new auto-injector with each dose while awaiting emergency medical assistance. (Nalmefene label, Warnings and precautions)

  • Naltrexone and bupropionopioid antagonistMajor

    …(e.g., buprenorphine) use, or acute opiate withdrawal [see Warnings and Precautions (5.4) and Drug Interactions (7.2) ] Patients undergoing an abrupt discontinuation of alcohol, benzodiazepines, barbiturates, and antiepileptic drugs [see Warnings and Precautions (5.3) and Drug Interactions (7.7) ] Concomitant administration of monoamine oxidase inhibitors (MAOI). (Naltrexone and bupropion label, Contraindications)

  • NaproxenNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • …(selective blocker of Na v 1.8 sodium channels): suzetrigine • Opioid antagonists: naloxegol • PDE5 inhibitor: sildenafil (Revatio ® ) when used for pulmonary arterial hypertension (PAH) • Sedative/hypnotics: triazolam, oral midazolam • Serotonin receptor 1A agonist/serotonin receptor 2A antagonist: flibanserin • Vasopressin receptor antagonists: tolvaptan ➢ Drugs that… (Nirmatrelvir and ritonavir label, Contraindications)

  • OliceridineopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Oliceridine label, Boxed warning)

  • OlopatadineantihistamineMajor

    • Avoid concurrent use of alcohol or other central nervous system depressants with olopatadine hydrochloride nasal solution (nasal spray) ( 5.2 ). (Olopatadine label, Warnings and precautions)

  • Olopatadine and mometasoneantihistamineMajor

    • Avoid concurrent use of alcohol or other central nervous system (CNS) depressants with RYALTRIS because additional reductions in alertness and additional impairment of CNS performance may occur. (Olopatadine and mometasone label, Warnings and precautions)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • OxaprozinNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • OxazepambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Oxazepam label, Warnings)

  • OxycodoneopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Oxycodone label, Boxed warning)

  • …LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; NEONATAL OPIOID WITHDRAWAL SYNDROME; CYTOCHROME P450 3A4 INTERACTION; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS Addiction, Abuse, and Misuse Oxycodone hydrochloride tablets exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to… (Oxycodone and acetaminophen label, Boxed warning)

  • OxymorphoneopioidMajor

    Risks From Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Oxymorphone label, Boxed warning)

  • …MITIGATION STRATEGY (REMS); LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; NEONATAL OPIOID WITHDRAWAL SYNDROME; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS Addiction, Abuse, and Misuse Pentazocine and Naloxone Tablets exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to… (Pentazocine and naloxone label, Boxed warning)

  • PentoxifyllinemethylxanthineMajor

    CONTRAINDICATIONS Pentoxifylline extended-release tablets should not be used in patients with recent cerebral and/or retinal hemorrhage or in patients who have previously exhibited intolerance to this product or methylxanthines such as caffeine, theophylline, and theobromine. (Pentoxifylline label, Contraindications)

  • PerphenazineantipsychoticMajor

    CONTRAINDICATIONS Perphenazine products are contraindicated in comatose or greatly obtunded patients and in patients receiving large doses of central nervous system depressants (barbiturates, alcohol, narcotics, analgesics, or antihistamines); in the presence of existing blood dyscrasias, bone marrow depression, or liver damage; and in patients who have shown… (Perphenazine label, Contraindications)

  • PhendimetrazineCNS stimulantMajor

    …hypertension) • During or within 14 days following the administration of monoamine oxidase inhibitors • Hyperthyroidism • Glaucoma • Agitated states • History of drug abuse • Pregnancy (see PRECAUTIONS, Pregnancy ) • Nursing • Use in combination with other anorectic agents or CNS stimulants • Known hypersensitivity or idiosyncratic reactions to sympathomimetics (Phendimetrazine label, Contraindications)

  • PhenelzineMAO inhibitorMajor

    Excessive amounts of caffeine and chocolate may also cause hypertensive reactions. (Phenelzine label, Contraindications)

  • PhenobarbitalbarbiturateMajor

    SEZABY is contraindicated in patients with: acute porphyrias [see Warnings and Precautions (5.8)], or a history of hypersensitivity reaction to phenobarbital or other barbiturates [see Warnings and Precautions (5.7)] Acute porphyrias (4) (Phenobarbital label, Contraindications)

  • Physostigminecholinesterase inhibitorMajor

    …spasms in the urinary tract collection system, inactivation of nerve and muscle cells after administration of drugs to relax the muscles (depolarization block after depolarizing muscle relaxants), in case of intoxication due to “irreversibly acting” cholinesterase inhibitors (drugs used to treat dementia), intoxication with phosphoric acid esters or barbiturates. (Physostigmine label, Contraindications)

  • Patients with a hemorrhagic diathesis (e.g., hemophilia, hypoprothrombinemia, von Willebrand's disease, the thrombocytopenias, thrombasthenia and other ill-defined hereditary platelet dysfunctions, severe vitamin K deficiency and severe liver damage). (Butalbital, aspirin, and caffeine label, Contraindications)

  • PimozideantipsychoticMajor

    Pimozide should not be used in patients taking drugs that may, themselves, cause motor and phonic tics (e.g., pemoline, methylphenidate and amphetamines) until such patients have been withdrawn from these drugs to determine whether or not the drugs, rather than Tourette’s Disorder, are responsible for the tics. (Pimozide label, Contraindications)

  • PiroxicamNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • PralatrexateantimetaboliteMajor

    Avoid coadministration with probenecid or nonsteroidal anti-inflammatory drugs. (Pralatrexate label, Drug interactions)

  • Prasugrelantiplatelet agentMajor

    Additional risk factors for bleeding include: body weight <60 kg, propensity to bleed, concomitant use of medications that increase the risk of bleeding (e.g . , warfarin, heparin, fibrinolytic therapy, chronic use of nonsteroidal anti-inflammatory drugs [NSAIDs]) [see Warnings and Precautions (5.1) ] . (Prasugrel label, Boxed warning)

  • PregabalinanticonvulsantMajor

    • Respiratory Depression : May occur with LYRICA when used with concomitant CNS depressants or in the setting of underlying respiratory impairment. (Pregabalin label, Warnings and precautions)

  • In patients on probenecid the use of salicylates in either small or large doses is contraindicated because it antagonizes the uricosuric action of probenecid. (Probenecid label, Warnings)

  • In patients on probenecid and colchicine the use of salicylates in either small or large doses is contraindicated because it antagonizes the uricosuric action of probenecid. (Probenecid and colchicine label, Warnings)

  • ProchlorperazineantipsychoticMajor

    Do not use in comatose states or in the presence of large amounts of central nervous system depressants (alcohol, barbiturates, narcotics, etc.). Do not use in pediatric surgery. (Prochlorperazine label, Contraindications)

  • …PROMETHAZINE AND RESPIRATORY DEPRESSION IN CHILDREN; MEDICATION ERRORS; INTERACTIONS WITH DRUGS AFFECTING CYTOCHROME P450 ISOENZYMES; CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; NEONATAL OPIOID WITHDRAWAL SYNDROME Addiction, Abuse, and Misuse Promethazine HCl and Codeine Phosphate Oral Solution exposes patients and other users to the risks… (Promethazine and codeine label, Boxed warning)

  • RemifentanilopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Remifentanil label, Boxed warning)

  • RifampinantibioticMajor

    Quinine Prevention or Management : Avoid concomitant use Decrease AUC by 75%-85% Telithromycin Decrease AUC by 86% Theophylline Decrease exposure by 20%-40% Effect of Other Drugs on Rifampin Concomitant antacid administration may reduce the absorption of rifampin. (Rifampin label, Drug interactions)

  • RiociguatvasodilatorMajor

    Phosphodiesterase Inhibitors Concomitant administration of Adempas with specific PDE-5 inhibitors (such as sildenafil, tadalafil, or vardenafil) or nonspecific PDE-5 inhibitors (such as dipyridamole or theophylline) is contraindicated [see Dosage and Administration (2.6), Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.2 )]. (Riociguat label, Contraindications)

  • RitonavirantiretroviralMajor

    WARNING: DRUG-DRUG INTERACTIONS LEADING TO POTENTIALLY SERIOUS AND/OR LIFE THREATENING REACTIONS Co-administration of NORVIR with several classes of drugs including sedative hypnotics, antiarrhythmics, or ergot alkaloid preparations may result in potentially serious and/or life-threatening adverse events due to possible effects of NORVIR on the hepatic metabolism… (Ritonavir label, Boxed warning)

  • RivaroxabananticoagulantMajor

    …risk of developing epidural or spinal hematomas in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants • a history of traumatic or repeated epidural or spinal punctures • a history of spinal deformity… (Rivaroxaban label, Boxed warning)

  • Salmeterolbeta-adrenergic agonistMajor

    Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Salmeterol label, Warnings and precautions)

  • SalsalateNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Sodium oxybateCNS depressantMajor

    • Central Nervous System Depression Xyrem (sodium oxybate) is a CNS depressant. (Sodium oxybate label, Boxed warning)

  • SulindacNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • TapentadolopioidMajor

    Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Tapentadol label, Boxed warning)

  • TemazepambenzodiazepineMajor

    Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. (Temazepam label, Warnings)

  • TenofovirantiretroviralMajor

    VIREAD should be avoided with concurrent or recent use of a nephrotoxic agent (e.g., high-dose or multiple non-steroidal anti-inflammatory drugs [NSAIDs]) [see Drug Interactions (7.1) ] . (Tenofovir label, Warnings and precautions)

  • Terbutalinebeta-adrenergic agonistMajor

    Hypersensitivity Terbutaline sulfate is contraindicated in patients known to be hypersensitive to sympathomimetic amines or any component of this drug product. (Terbutaline label, Contraindications)

  • Ticagrelorantiplatelet agentMajor

    WARNING: BLEEDING RISK • BRILINTA, like other antiplatelet agents, can cause significant, sometimes fatal bleeding ( 5.1 , 6.1 ). (Ticagrelor label, Boxed warning)

  • TolmetinNSAIDMajor

    Patients with the syndrome of nasal polyps, angioedema and bronchospastic reactivity to aspirin or other nonsteroidal anti-inflammatory drugs. (Butalbital, aspirin, and caffeine label, Contraindications)

  • TramadolopioidMajor

    Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Tramadol label, Boxed warning)

  • Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (Tramadol and acetaminophen label, Boxed warning)

  • TranylcypromineMAO inhibitorMajor

    …hot dogs, breakfast sausage, and cooked sliced ham) Vegetables Broad bean pods (fava bean pods) All other vegetables Dairy Aged cheeses Processed cheeses, mozzarella, ricotta cheese, cottage cheese, and yogurt Beverages All varieties of tap beer and beers that have not been pasteurized so as to allow for ongoing fermentation and excessive amounts of caffeine. (Tranylcypromine label, Drug interactions)

  • TriazolambenzodiazepineMajor

    • Effects on Driving and Operating Heavy Machinery : Patients receiving triazolam should be cautioned against driving or operating heavy machinery, as well as avoiding concomitant use with alcohol and other CNS depressant drugs. (Triazolam label, Warnings and precautions)

  • TrifluoperazineantipsychoticMajor

    CONTRAINDICATIONS A known hypersensitivity to phenothiazines, comatose or greatly depressed states due to central nervous system depressants and, in cases of existing blood dyscrasias, bone marrow depression and preexisting liver damage. (Trifluoperazine label, Contraindications)

  • Avoid co-administration of ella and drugs or herbal products such as: • barbiturates • bosentan • carbamazepine • felbamate • griseofulvin • oxcarbazepine • phenytoin • rifampin • St. (Ulipristal label, Drug interactions)

  • Umeclidinium and vilanterolanticholinergicMajor

    Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs. (Umeclidinium and vilanterol label, Warnings and precautions)

  • Vitamin KVitamin and mineralMajor

    Patients with a hemorrhagic diathesis (e.g., hemophilia, hypoprothrombinemia, von Willebrand's disease, the thrombocytopenias, thrombasthenia and other ill-defined hereditary platelet dysfunctions, severe vitamin K deficiency and severe liver damage). (Butalbital, aspirin, and caffeine label, Contraindications)

  • Voriconazoleazole antifungalMajor

    • Long-acting barbiturates • Rifabutin • Rifampin • Ritonavir Concomitant use with high-dose ritonavir (400 mg every 12 hours) is contraindicated. (Voriconazole label, Contraindications)

  • Zaleplonsedative-hypnoticMajor

    The use of zaleplon with other sedative-hypnotics at bedtime or the middle of the night is not recommended (see ). (Zaleplon label, Warnings)

  • Zolpidemsedative-hypnoticMajor

    The use of Zolpidem Tartrate with other sedative-hypnotics (including other zolpidem products) at bedtime or the middle of the night is not recommended. (Zolpidem label, Warnings and precautions)

Moderate interactions (351)

  • AcarboseantidiabeticModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • AclidiniumanticholinergicModerate

    Sympathomimetics, Methylxanthines, Steroids In clinical studies, concurrent administration of aclidinium bromide and other drugs commonly used in the treatment of COPD including sympathomimetics (short-acting beta 2 agonists), methylxanthines, and oral and inhaled steroids showed no increases in adverse drug reactions. (Aclidinium label, Drug interactions)

  • AdalimumabimmunosuppressantModerate

    Upon initiation or discontinuation of Adalimumab-fkjp in patients being treated with CYP450 substrates with a narrow therapeutic index, monitoring of the effect (e.g., warfarin) or drug concentration (e.g., cyclosporine or theophylline) is recommended and the individual dose of the drug product may be adjusted as needed. (Adalimumab label, Drug interactions)

  • AdapaleneretinoidModerate

    Particular caution should be exercised in using preparations containing sulfur, resorcinol, or salicylic acid in combination with Adapalene Cream, 0.1%. (Adapalene label, Drug interactions)

  • AdefovirantiviralModerate

    However, this is of special importance in patients at risk of or having underlying renal dysfunction and patients taking concomitant nephrotoxic agents such as cyclosporine, tacrolimus, aminoglycosides, vancomycin and non-steroidal anti-inflammatory drugs [See Adverse Reactions (6.2) and Clinical Pharmacology (12.3) ]. (Adefovir label, Warnings and precautions)

  • AfatinibModerate

    Patients receiving concomitant corticosteroids, nonsteroidal anti-inflammatory drugs (NSAIDs) or anti-angiogenic agents, or patients with increasing age or who have an underlying history of gastrointestinal ulceration, underlying diverticular disease or bowel metastases may be at increased risk of perforation. (Afatinib label, Warnings and precautions)

  • AlbendazoleModerate

    Theophylline: Albendazole induces cytochrome P450 1A in human hepatoma cells; therefore, it is recommended that plasma concentrations of theophylline be monitored during and after treatment. (Albendazole label, Drug interactions)

  • AlendronatebisphosphonateModerate

    Aspirin In clinical studies, the incidence of upper gastrointestinal adverse events was increased in patients receiving concomitant therapy with daily doses of alendronate sodium greater than 10 mg and aspirin-containing products. (Alendronate label, Drug interactions)

  • AliskirenantihypertensiveModerate

    …part on the activity of the RAAS (e.g., patients with renal artery stenosis, severe heart failure, post-myocardial infarction or volume depletion) or patients receiving ARB, ACEI or nonsteroidal anti-inflammatory drug (NSAID), including selective Cyclooxygenase-2 inhibitors (COX-2 inhibitors), therapy may be at particular risk for developing acute renal failure… (Aliskiren label, Warnings and precautions)

  • Allopurinolxanthine oxidase inhibitorModerate

    Inform patients also that the central nervous system depressant effects of allopurinol tablets may be additive to those of alcohol and other CNS depressants. (Allopurinol label, Warnings and precautions)

  • AlogliptinDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Alogliptin and metforminDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • AlteplaseModerate

    Because heparin, aspirin, or Activase may cause bleeding complications, carefully monitor for bleeding, especially at arterial puncture sites. (Alteplase label, Warnings and precautions)

  • Amiloridepotassium-sparing diureticModerate

    In some patients, the administration of a non-steroidal anti-inflammatory agent can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Amiloride label, Drug interactions)

  • AminophyllinemethylxanthineModerate

    25% increase Diazepam Benzodiazepines increase CNS concentrations of adenosine, a potent CNS depressant, while theophylline blocks adenosine receptors. (Aminophylline label, Drug interactions)

  • Amitriptylinetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Amlodipine and benazeprildihydropyridine calcium channel blockerModerate

    Patients whose renal function may depend in part on the activity of the RAS (e.g., patients with renal artery stenosis, severe heart failure, post-myocardial infarction or volume depletion) or who are on Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) or ARBs may be at particular risk of developing acute renal failure on amlodipine and benazepril hydrochloride. (Amlodipine and benazepril label, Warnings and precautions)

  • Amlodipine and olmesartandihydropyridine calcium channel blockerModerate

    • Increased exposure of amlodipine when coadministered with CYP3A inhibitors Olmesartan medoxomil ( 7.2 ): • Nonsteroidal anti-inflammatory drugs (NSAIDS) may lead to increased risk of renal impairment and loss of antihypertensive effect. (Amlodipine and olmesartan label, Drug interactions)

  • Amlodipine and valsartandihydropyridine calcium channel blockerModerate

    Non-Steroidal Anti-Inflammatory Agents Including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) : In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including valsartan, may… (Amlodipine and valsartan label, Drug interactions)

  • Amoxapinetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • AnagrelideQT-prolonging drugModerate

    Bleeding Risk Use of concomitant AGRYLIN and aspirin increased major hemorrhagic events in a postmarketing study. (Anagrelide label, Warnings and precautions)

  • ArgatrobananticoagulantModerate

    Butalbital, Aspirin, and Caffeine Capsules may enhance the effects of: Oral anticoagulants, causing bleeding by inhibiting prothrombin formation in the liver and displacing anticoagulants from plasma protein binding sites. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • AripiprazoleantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • AsenapineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Atenololbeta blockerModerate

    Concomitant use of prostaglandin synthase inhibiting drugs, e.g., indomethacin, may decrease the hypotensive effects of beta-blockers. (Atenolol label, Drug interactions)

  • Atenolol and chlorthalidonebeta blockerModerate

    Concomitant use of prostaglandin synthase inhibiting drugs, e.g., indomethacin, may decrease the hypotensive effects of beta-blockers. (Atenolol and chlorthalidone label, Drug interactions)

  • AzathioprineimmunosuppressantModerate

    It is recommended that a further dose reduction or alternative therapies be considered for patients with low or absent TPMT activity receiving IMURAN and xanthine oxidase inhibitors because both TPMT and XO inactivation pathways are affected (see CLINICAL PHARMACOLOGY, WARNINGS, PRECAUTIONS: Laboratory Tests and ADVERSE REACTIONS sections). (Azathioprine label, Drug interactions)

  • AzelastineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Azilsartanangiotensin II receptor blocker (ARB)Moderate

    Non-steroidal Anti-Inflammatory Agents, including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or who have compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including azilsartan,… (Azilsartan label, Drug interactions)

  • Baclofenmuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • BalsalazidesalicylateModerate

    Nephrotoxic Agents including NSAIDs: Increased risk of nephrotoxicity; monitor for changes in renal function and mesalamine-related adverse reactions. (Balsalazide label, Drug interactions)

  • BeclomethasonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • BenazeprilACE inhibitorModerate

    NSAIDS: Increased risk of renal impairment and loss of antihypertensive efficacy ( 7.3 ) (Benazepril label, Drug interactions)

  • NSAIDs and Cox-2 selective agents: In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including benazepril, may result in deterioration of renal function, including possible acute renal failure. (Benazepril and hydrochlorothiazide label, Drug interactions)

  • BetamethasonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • BexagliflozinSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Sedatives/Hypnotics: midazolam (oral) triazolam ↑ midazolam (oral) ↑ triazolam Use caution when midazolam or triazolam is concomitantly administered with BIXLENVO. (Bictegravir, emtricitabine, and tenofovir alafenamide label, Drug interactions)

  • Alcohol, barbiturates, or narcotics - potentiation of orthostatic hypotension may occur. (Bisoprolol and hydrochlorothiazide label, Precautions)

  • BivalirudinanticoagulantModerate

    Butalbital, Aspirin, and Caffeine Capsules may enhance the effects of: Oral anticoagulants, causing bleeding by inhibiting prothrombin formation in the liver and displacing anticoagulants from plasma protein binding sites. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • BortezomibModerate

    Management of orthostatic/postural hypotension may include adjustment of antihypertensive medications, hydration, and administration of mineralocorticoids and/or sympathomimetics. (Bortezomib label, Warnings and precautions)

  • BrexpiprazoleantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Brimonidinealpha-adrenergic agonistModerate

    Use with CNS depressants may result in an additive or potentiating effect. (Brimonidine label, Drug interactions)

  • Brimonidine and timololalpha-adrenergic agonistModerate

    Use with CNS depressants may result in an additive or potentiating effect. (Brimonidine and timolol label, Drug interactions)

  • Brinzolamidecarbonic anhydrase inhibitorModerate

    • Rare instances of acid-base alterations have occurred with high-dose salicylate therapy. (Brinzolamide label, Drug interactions)

  • BrivaracetamanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Bromocriptinedopamine agonistModerate

    Therefore, CYCLOSET may increase the unbound fraction of other concomitantly used highly protein-bound therapies (e.g., salicylates, sulfonamides, chloramphenicol and probenecid), which may alter their effectiveness and risk for side effects. (Bromocriptine label, Drug interactions)

  • Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • BudesonidecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Bupivacainelocal anestheticModerate

    Possible early warning signs of central nervous system (CNS) toxicity are restlessness, anxiety, incoherent speech, lightheadedness, numbness and tingling of the mouth and lips, metallic taste, tinnitus, dizziness, blurred vision, tremors, twitching, CNS depression, or drowsiness. (Bupivacaine label, Warnings and precautions)

  • Bupivacaine and epinephrinelocal anestheticModerate

    Possible early warning signs of central nervous system (CNS) toxicity are restlessness, anxiety, incoherent speech, lightheadedness, numbness and tingling of the mouth and lips, metallic taste, tinnitus, dizziness, blurred vision, tremors, twitching, CNS depression, or drowsiness. (Bupivacaine and epinephrine label, Warnings and precautions)

  • Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Buspironeserotonergic drugModerate

    Triazolam/flurazepam: Coadministration of buspirone with either triazolam or flurazepam did not appear to prolong or intensify the sedative effects of either benzodiazepine. (Buspirone label, Drug interactions)

  • Butalbital and acetaminophenbarbiturateModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CanagliflozinSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Candesartanangiotensin II receptor blocker (ARB)Moderate

    NSAIDS use may lead to increased risk of renal impairment and loss of antihypertensive effect ( 7 ). (Candesartan label, Drug interactions)

  • Candesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Interactions common to both Candesartan Cilexetil and Hydrochlorothiazide Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors,… (Candesartan and hydrochlorothiazide label, Drug interactions)

  • Cannabidiol (prescription)anticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CaptoprilACE inhibitorModerate

    Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including captopril, may result in deterioration… (Captopril label, Drug interactions)

  • CariprazineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Carisoprodolmuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CefotaximecephalosporinModerate

    Drug Interactions As with other cephalosporins, cefotaxime may potentiate the nephrotoxic effects of nephrotoxic drugs such as aminoglycosides, NSAIDs and furosemide. (Cefotaxime label, Drug interactions)

  • CenobamateanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Chlorothiazidethiazide diureticModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • ChlorpheniramineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Chlorzoxazonemuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CiclesonidecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CimetidineH2 blockerModerate

    …apparently through an effect on certain microsomal enzyme systems, has been reported to reduce the hepatic metabolism of warfarin-type anticoagulants, phenytoin, propranolol, nifedipine, chlordiazepoxide, diazepam, certain tricyclic antidepressants, lidocaine, theophylline, and metronidazole, thereby delaying elimination and increasing blood levels of these drugs. (Cimetidine label, Drug interactions)

  • CitalopramSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs, other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk. (Citalopram label, Warnings and precautions)

  • Clarithromycinmacrolide antibioticModerate

    Xanthine Derivatives: Theophylline Use With Caution Theophylline: Clarithromycin use in patients who are receiving theophylline may be associated with an increase of serum theophylline concentrations [see Pharmacokinetics ( 12.3 )] . (Clarithromycin label, Drug interactions)

  • ClemastineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • ClobetasolcorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Clomipraminetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Clopidogrelantiplatelet agentModerate

    Risk factors for bleeding include concomitant use of other drugs that increase the risk of bleeding (e.g., anticoagulants, antiplatelet agents, and chronic use of NSAIDs) [see Drug Interactions (7.4 , 7.5 , 7.6 , 7.7) ]. (Clopidogrel label, Warnings and precautions)

  • ClozapineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • CyclosporineimmunosuppressantModerate

    In addition, concomitant use of NSAIDs with cyclosporine, particularly in the setting of dehydration, may potentiate renal dysfunction. (Cyclosporine label, Drug interactions)

  • CyproheptadineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Dantrolenemuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DapagliflozinSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Dapagliflozin and metforminSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Daridorexantsedative-hypnoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DeflazacortcorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Desfluranegeneral anestheticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Desipraminetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DesmopressinModerate

    …Hyponatremia Concomitant administration of DESMODA with other drugs that may increase the risk of water intoxication with hyponatremia, (e.g., tricyclic antidepressants, selective serotonin re-uptake inhibitors, chlorpromazine, opiate analgesics, thiazide diuretics, NSAIDs, lamotrigine, sulfonylureas, particularly chlorpropamide, oxybutynin and carbamazepine). (Desmopressin label, Drug interactions)

  • Desogestrel and ethinyl estradioloral contraceptiveModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (Desogestrel and ethinyl estradiol label, Drug interactions)

  • DesonidecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DesvenlafaxineSNRIModerate

    Examples NSAIDs, aspirin, and warfarin Drugs that are Primarily Metabolized by CYP2D6 Clinical Impact Concomitant use of PRISTIQ increases C max and AUC of a drug primarily metabolized by CYP2D6 which may increase the risk of toxicity of the CYP2D6 substrate drug [see Clinical Pharmacology (12.3) ] . (Desvenlafaxine label, Drug interactions)

  • DeutetrabenazineVMAT2 inhibitorModerate

    Alcohol or other sedating drugs: May have additive sedation and somnolence ( 7.5 ) (Deutetrabenazine label, Drug interactions)

  • DexamethasonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DexchlorpheniramineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Dexmedetomidinealpha-adrenergic agonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DicyclomineanticholinergicModerate

    …drugs including dicyclomine hydrochloride: amantadine, antiarrhythmic agents of Class I (e.g., quinidine), antihistamines, antipsychotic agents (e.g., phenothiazines), benzodiazepines, MAO inhibitors, narcotic analgesics (e.g., meperidine), nitrates and nitrites, sympathomimetic agents, tricyclic antidepressants, and other drugs having anticholinergic activity. (Dicyclomine label, Drug interactions)

  • MOTOFEN ® may potentiate the action of barbiturates, tranquilizers, narcotics, and alcohol. (Difenoxin and atropine label, Drug interactions)

  • Digoxindigitalis glycosideModerate

    Sympathomimetics Epinephrine Can increase the risk of cardiac arrhythmias. (Digoxin label, Drug interactions)

  • DimenhydrinateantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DiphenhydramineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Divalproex (valproate)anticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Donepezilcholinesterase inhibitorModerate

    Therefore, patients should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Donepezil label, Warnings and precautions)

  • Dorzolamidecarbonic anhydrase inhibitorModerate

    High-Dose Salicylate Therapy Although acid-base and electrolyte disturbances were not reported in the clinical trials with dorzolamide hydrochloride ophthalmic solution, these disturbances have been reported with oral carbonic anhydrase inhibitors and have, in some instances, resulted in drug interactions (e.g., toxicity associated with high-dose salicylate therapy). (Dorzolamide label, Drug interactions)

  • Dorzolamide and timololcarbonic anhydrase inhibitorModerate

    High-Dose Salicylate Therapy Although acid-base and electrolyte disturbances were not reported in the clinical trials with dorzolamide hydrochloride ophthalmic solution, these disturbances have been reported with oral carbonic anhydrase inhibitors and have, in some instances, resulted in drug interactions (e.g., toxicity associated with high-dose salicylate therapy). (Dorzolamide and timolol label, Drug interactions)

  • DoxapramModerate

    Drug Interactions Administration of doxapram to patients who are receiving sympathomimetic or monoamine oxidase inhibiting drugs may result in an additive pressor effect (see PRECAUTIONS, General ). (Doxapram label, Drug interactions)

  • Doxepintricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Doxycyclinetetracycline antibioticModerate

    Barbiturates, carbamazepine and phenytoin decrease the half-life of doxycycline. (Doxycycline label, Drug interactions)

  • DoxylamineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Droperidoldopamine antagonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Drospirenone and ethinyl estradioloral contraceptiveModerate

    Medications that may increase serum potassium concentration include ACE inhibitors, angiotensin-II receptor antagonists, potassium-sparing diuretics, potassium supplementation, heparin, aldosterone antagonists, and NSAIDS. (Drospirenone and ethinyl estradiol label, Warnings and precautions)

  • DulaglutideGLP-1 receptor agonistModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • DuloxetineSNRIModerate

    Inform patients about the increased risk of bleeding associated with the concomitant use of Duloxetine Delayed-Release Capsules and NSAIDs, aspirin, or other drugs that affect coagulation [see Drug Interactions ( 7.1 )] . (Duloxetine label, Warnings and precautions)

  • Dutasteride and tamsulosin5-alpha reductase inhibitorModerate

    Tamsulosin Dosage adjustments are not necessary when tamsulosin is administered concomitantly with digoxin or theophylline [see Clinical Pharmacology (12.3) ]. (Dutasteride and tamsulosin label, Drug interactions)

  • EluxadolineopioidModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • EmpagliflozinSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Empagliflozin and metforminSGLT2 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Emtricitabine and tenofovirantiretroviralModerate

    Individuals taking tenofovir prodrugs who have impaired renal function and those taking nephrotoxic agents including non-steroidal anti-inflammatory drugs are at increased risk of developing renal-related adverse reactions. (Emtricitabine and tenofovir label, Warnings and precautions)

  • EnalaprilACE inhibitorModerate

    In patients who are elderly, volume-depleted (as on diuretic therapy), or with compromised renal function, use with NSAIDs, including selective COX-2 inhibitors, may result in deterioration of renal function, including renal failure. (Enalapril label, Drug interactions)

  • Non-steroidal Anti-inflammatory Agents Including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including enalapril, may result in deterioration… (Enalapril and hydrochlorothiazide label, Drug interactions)

  • EnalaprilatACE inhibitorModerate

    Non-steroidal anti-inflammatory agents In some patients with compromised renal function who are being treated with non-steroidal anti-inflammatory drugs, the co-administration of enalapril may result in a further deterioration of renal function. (Enalaprilat label, Drug interactions)

  • EphedrinesympathomimeticModerate

    • Pr e ssor Effect with Concomitant Oxytocic Drugs : Pressor effect of sympathomimetic pressor amines is potentiated (5.1) (Ephedrine label, Warnings and precautions)

  • Eplerenonealdosterone antagonistModerate

    • Hyperkalemia: Patients with decreased renal function, diabetes, proteinuria or patients who are taking ACEs and ARBs, NSAIDs or moderate CYP3A inhibitors are at increased risk. (Eplerenone label, Warnings and precautions)

  • Epoprostenolprostaglandin analogModerate

    When other antiplatelet agents or anticoagulants are used concomitantly, there is the potential for VELETRI to increase the risk of bleeding. (Epoprostenol label, Drug interactions)

  • Eptifibatideantiplatelet agentModerate

    Coadministration of antiplatelet agents, thrombolytics, heparin, aspirin, and chronic NSAID use increases the risk of bleeding. (Eptifibatide label, Drug interactions)

  • ErlotinibModerate

    Patients receiving concomitant anti-angiogenic agents, corticosteroids, NSAIDs, or taxane-based chemotherapy, or who have prior history of peptic ulceration or diverticular disease may be at increased risk of perforation [see Adverse Reactions (6.1 , 6.2) ]. (Erlotinib label, Warnings and precautions)

  • Erythromycinmacrolide antibioticModerate

    Drug Interactions Theophylline Erythromycin use in patients who are receiving high doses of theophylline may be associated with an increase in serum theophylline levels and potential theophylline toxicity. (Erythromycin label, Drug interactions)

  • EscitalopramSSRIModerate

    Increased Risk of Bleeding: Concomitant use of nonsteroidal anti-inflammatory drugs, aspirin, other antiplatelet drugs, warfarin and other anticoagulants may increase risk ( 5.7 , 7) (Escitalopram label, Warnings and precautions)

  • EslicarbazepineanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Esmololbeta blockerModerate

    Sympathomimetic drugs: Dose adjustment needed (7) (Esmolol label, Drug interactions)

  • Estradiol and dienogestoral contraceptiveModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampin, topiramate and products containing St. (Estradiol and dienogest label, Drug interactions)

  • Ethacrynic acidloop diureticModerate

    In some patients, the administration of a non-steroidal anti-inflammatory agent can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Ethacrynic acid label, Drug interactions)

  • EthosuximideanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Etomidategeneral anestheticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include: phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (Etonogestrel and ethinyl estradiol label, Drug interactions)

  • EtravirineantiretroviralModerate

    Platelet aggregation inhibitors: clopidogrel ↓ clopidogrel (active) metabolite Activation of clopidogrel to its active metabolite may be decreased when clopidogrel is co-administered with Etravirine. (Etravirine label, Drug interactions)

  • ExenatideGLP-1 receptor agonistModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Febuxostatxanthine oxidase inhibitorModerate

    Consider use of prophylactic low-dose aspirin therapy in patients with a history of CV disease. (Febuxostat label, Warnings and precautions)

  • FelbamateanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FlibanserinCNS depressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Fluconazoleazole antifungalModerate

    Non-steroidal anti-inflammatory drugs The C max and AUC of flurbiprofen were increased by 23% and 81%, respectively, when coadministered with fluconazole compared to administration of flurbiprofen alone. (Fluconazole label, Drug interactions)

  • FludrocortisonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FlumazenilbenzodiazepineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FlunisolidecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FluocinonidecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FluoxetineSSRIModerate

    Use with NSAIDs, aspirin, warfarin, or other drugs that affect coagulation may potentiate the risk of gastrointestinal or other bleeding ( 5.7 ) (Fluoxetine label, Warnings and precautions)

  • FluphenazineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FluticasonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • FluvoxamineSSRIModerate

    Other Drugs Affecting Hemostasis: Increased risk of bleeding with concomitant use of NSAIDs, aspirin, or other drugs affecting coagulation ( 5.8 , 5.10 ). (Fluvoxamine label, Warnings and precautions)

  • The diuretic, natriuretic, and antihypertensive effects of thiazide diuretics may be reduced by concurrent administration of nonsteroidal anti-inflammatory agents ; the effects (if any) of these agents on the antihypertensive effect of fosinopril sodium and hydrochlorothiazide have not been studied. (Fosinopril and hydrochlorothiazide label, Drug interactions)

  • FosphenytoinanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Furosemideloop diureticModerate

    • Salicylates : Risk of salicylate toxicity ( 7.1 ) (Furosemide label, Drug interactions)

  • Galantaminecholinesterase inhibitorModerate

    Therefore, patients should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those with an increased risk for developing ulcers, e.g., those with a history of ulcer disease or patients using concurrent nonsteroidal anti-inflammatory drugs (NSAIDS). (Galantamine label, Warnings and precautions)

  • Ginkgo bilobaHerbal and supplementModerate

    Ginkgo may increase bleeding risk when taken with anticoagulant or antiplatelet medicines. (NCCIH, Ginkgo)

  • GlimepiridesulfonylureaModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • GlipizidesulfonylureaModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Glipizide and metforminsulfonylureaModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • GlyburidesulfonylureaModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Glyburide and metforminsulfonylureaModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • GriseofulvinantifungalModerate

    Serum salicylate concentrations may be decreased when griseofulvin is given concomitantly with salicylates. (Griseofulvin label, Drug interactions)

  • Guanfacinealpha-adrenergic agonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • HalobetasolcorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • HaloperidolantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • HeparinanticoagulantModerate

    Butalbital, Aspirin, and Caffeine Capsules may enhance the effects of: Oral anticoagulants, causing bleeding by inhibiting prothrombin formation in the liver and displacing anticoagulants from plasma protein binding sites. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • • Large doses of salicylates, cortisone, adrenocorticotropic hormone (ACTH), estrogens or antihistamines may require larger amounts of hyaluronidase for equivalent dispersing effect ( 7.4 ) (Hyaluronidase label, Drug interactions)

  • Hydrochlorothiazidethiazide diureticModerate

    NSAID: May lead to increased risk of renal impairment and loss of diuretic and antihypertensive effect (7.1). (Hydrochlorothiazide label, Drug interactions)

  • HydrocortisonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • IbandronatebisphosphonateModerate

    Use caution when co-prescribing aspirin/nonsteroidal anti-inflammatory drugs that may worsen gastrointestinal irritation. (Ibandronate label, Drug interactions)

  • Icosapent ethylomega-3 fatty acidModerate

    The incidence of bleeding was greater in patients receiving concomitant antithrombotic medications, such as aspirin, clopidogrel, or warfarin. (Icosapent ethyl label, Warnings and precautions)

  • IloperidoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • InfliximabimmunosuppressantModerate

    Upon initiation or discontinuation of RENFLEXIS in patients being treated with CYP450 substrates with a narrow therapeutic index, monitoring of the effect (e.g., warfarin) or drug concentration (e.g., cyclosporine or theophylline) is recommended and the individual dose of the drug product may be adjusted as needed. (Infliximab label, Drug interactions)

  • Insulin aspartinsulinModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Insulin degludecinsulinModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Insulin detemirinsulinModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Insulin glargineinsulinModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Insulin lisproinsulinModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Irbesartanangiotensin II receptor blocker (ARB)Moderate

    Nonsteroidal Anti-inflammatory Drugs (NSAIDs) and COX-2 inhibitors: Increased risk of renal impairment. (Irbesartan label, Drug interactions)

  • Irbesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    NSAIDs and selective COX-2 inhibitors: Can reduce diuretic, natriuretic of diuretic, may lead to increased risk of renal impairment and reduced antihypertensive effect. (Irbesartan and hydrochlorothiazide label, Drug interactions)

  • Isofluranegeneral anestheticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • IsoniazidantibioticModerate

    Drug Interactions The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LacosamideanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Lansoprazoleproton pump inhibitorModerate

    Theophylline Clinical Impact: Increased clearance of theophylline [see Clinical Pharmacology (12.3) ] . (Lansoprazole label, Drug interactions)

  • LeflunomideimmunosuppressantModerate

    In patients taking ARAVA, exposure of drugs metabolized by CYP1A2 (e.g., alosetron, duloxetine, theophylline, tizanidine) may be reduced. (Leflunomide label, Drug interactions)

  • Lemborexantsedative-hypnoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LevetiracetamanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LevofloxacinfluoroquinoloneModerate

    Non-Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a fluoroquinolone, including Levofloxacin in 5% Dextrose Injection, may increase the risk of CNS stimulation and convulsive seizures [see Warnings and Precautions (5.4) ]. (Levofloxacin label, Drug interactions)

  • LevomilnacipranSNRIModerate

    Inform patients about the increased risk of bleeding associated with the concomitant use of FETZIMA and NSAIDs, aspirin, or other drugs that affect coagulation [see Drug Interactions ( 7.1 )] . (Levomilnacipran label, Warnings and precautions)

  • Levonorgestrel and ethinyl estradioloral contraceptiveModerate

    Other Drugs Clinical effect Concomitant use of CHCs may decrease systemic exposure of acetaminophen, morphine, salicylic acid, and temazepam. (Levonorgestrel and ethinyl estradiol label, Drug interactions)

  • Levothyroxinethyroid hormoneModerate

    An initial increase in serum FT 4 is followed by return of FT 4 to normal levels with sustained therapeutic serum salicylate concentrations, although total T 4 levels may decrease by as much as 30%. (Levothyroxine label, Drug interactions)

  • Lidocaine and epinephrinelocal anestheticModerate

    Possible early warning signs of central nervous system (CNS) toxicity are restlessness, anxiety, incoherent speech, lightheadedness, metallic taste, tinnitus, dizziness, blurred vision, tremors, twitching, CNS depression, or drowsiness. (Lidocaine and epinephrine label, Warnings and precautions)

  • LinagliptinDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Linagliptin and metforminDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LinezolidantibioticModerate

    Drug Interactions The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LiraglutideGLP-1 receptor agonistModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LisdexamfetamineCNS stimulantModerate

    Additionally, in studies of another stimulant, there was slowing of the increase in height [see Adverse Reactions (6.1) ] . (Lisdexamfetamine label, Warnings and precautions)

  • LisinoprilACE inhibitorModerate

    NSAIDS: Increased risk of renal impairment and loss of antihypertensive efficacy ( 7.3 ) (Lisinopril label, Drug interactions)

  • Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including lisinopril, may result in deterioration… (Lisinopril and hydrochlorothiazide label, Drug interactions)

  • Lithiumserotonergic drugModerate

    • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. (Lithium label, Drug interactions)

  • Lofexidinealpha-adrenergic agonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Losartanangiotensin II receptor blocker (ARB)Moderate

    NSAIDs: Increased risk of renal impairment and reduced diuretic, natriuretic, and antihypertensive effects. (Losartan label, Drug interactions)

  • Losartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): increased risk of renal impairment and reduced diuretic, natriuretic, and antihypertensive effects. (Losartan and hydrochlorothiazide label, Drug interactions)

  • LumateperoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • LurasidoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MeclizineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MedroxyprogesteroneprogestinModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include: • barbiturates • bosentan • carbamazepine • felbamate • griseofulvin • oxcarbazepine • phenytoin • rifampin • St. (Medroxyprogesterone label, Drug interactions)

  • Memantine and donepezilcholinesterase inhibitorModerate

    Patients treated with NAMZARIC should be monitored closely for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Memantine and donepezil label, Warnings and precautions)

  • MeprobamateCNS depressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MercaptopurineantimetaboliteModerate

    6-mercaptopurine and methotrexate, causing bone marrow toxicity and blood dyscrasias by displacing these drugs from secondary binding sites, and, in the case of methotrexate, also reducing its excretion. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MesalaminesalicylateModerate

    Nephrotoxic Agents including NSAIDs: Increased risk of nephrotoxicity; monitor for changes in renal function and mesalamine-related adverse reactions. (Mesalamine label, Drug interactions)

  • MetforminbiguanideModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Methimazoleantithyroid drugModerate

    Theophylline: Theophylline clearance may decrease when hyperthyroid patients on a stable theophylline regimen become euthyroid; a reduced dose of theophylline may be needed. (Methimazole label, Drug interactions)

  • Methocarbamolmuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MethohexitalbarbiturateModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MethsuximideanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Methylene blueMAO inhibitorModerate

    Drug Interactions The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Methylergonovineergot alkaloidModerate

    Caution should be exercised when methylergonovine maleate is used concurrently with other vasoconstrictors, ergot alkaloids, or prostaglandins. (Methylergonovine label, Drug interactions)

  • MethylprednisolonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Metoclopramidedopamine antagonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Metolazonethiazide diureticModerate

    Alcohol, Barbiturates, And Narcotics The hypotensive effects of these drugs may be potentiated by the volume contraction that may be associated with metolazone therapy. (Metolazone label, Drug interactions)

  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Reduced diuretic, natriuretic, and antihypertensive effects of diuretics. (Metoprolol and hydrochlorothiazide label, Drug interactions)

  • MetyrosineModerate

    Concurrent use of metyrosine with alcohol or other CNS depressants can increase their sedative effects. (Metyrosine label, Drug interactions)

  • MexiletineantiarrhythmicModerate

    Additionally, in one controlled study in five normal subjects and seven patients, the clearance of caffeine was decreased 50% following the administration of mexiletine. (Mexiletine label, Drug interactions)

  • MifepristoneCYP3A4 inhibitorModerate

    When given concomitantly with mifepristone, drugs that are substrates of CYP2C8/2C9 (including non-steroidal anti-inflammatory drugs, warfarin, and repaglinide) should be used at the smallest recommended doses, and patients should be closely monitored for adverse effects. [See Clinical Pharmacology ( 12.3 )] 7.5 Drugs Metabolized by CYP2B6 Mifepristone is an… (Mifepristone label, Drug interactions)

  • MiglitolantidiabeticModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MilnacipranSNRIModerate

    Caution patients about the risk of bleeding associated with the concomitant use of milnacipran hydrochloride and NSAIDs, aspirin, or other drugs that affect coagulation ( 5.9 ). (Milnacipran label, Warnings and precautions)

  • MirtazapineantidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MoexiprilACE inhibitorModerate

    Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDS, including selective COX-2 inhibitors, with ACE inhibitors, including moexipril, may result in deterioration… (Moexipril label, Drug interactions)

  • MometasonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • MoxifloxacinfluoroquinoloneModerate

    Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) Although not observed with moxifloxacin in preclinical and clinical trials, the concomitant administration of a nonsteroidal anti-inflammatory drug with a quinolone may increase the risks of CNS stimulation and convulsions [see Warnings and Precautions ( 5.4 ), and Patient Counseling Information ( 17 )]. (Moxifloxacin label, Drug interactions)

  • Naloxoneopioid antagonistModerate

    WARNINGS AND PRECAUTIONS Risk of Recurrent Respiratory and CNS Depression : Due to the duration of action of naloxone relative to the opioid, respiratory and CNS depression may recur after the first dose of naloxone. (Naloxone label, Warnings and precautions)

  • NateglinidemeglitinideModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • NefazodoneantidepressantModerate

    FEV 1 measurements taken when theophylline and nefazodone were coadministered did not differ from baseline dosage (i.e., when theophylline was administered alone). (Nefazodone label, Drug interactions)

  • NiacinModerate

    Aspirin Concomitant aspirin may decrease the metabolic clearance of nicotinic acid. (Niacin label, Drug interactions)

  • NintedanibModerate

    Use OFEV with caution when treating patients with recent abdominal surgery, previous history of diverticular disease or receiving concomitant corticosteroids or NSAIDs. (Nintedanib label, Warnings and precautions)

  • NizatidineH2 blockerModerate

    In patients given very high doses (3,900 mg) of aspirin daily, increases in serum salicylate levels were seen when nizatidine, 150 mg b.i.d., was administered concurrently. (Nizatidine label, Drug interactions)

  • Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (Norelgestromin and ethinyl estradiol label, Drug interactions)

  • NorethindroneprogestinModerate

    Some drugs or herbal products that may decrease the effectiveness of HCs include efavirenz, phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, rifabutin, rufinamide, aprepitant, and products containing St. (Norethindrone label, Drug interactions)

  • Norethindrone and ethinyl estradioloral contraceptiveModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include: barbiturates bosentan carbamazepine felbamate griseofulvin oxcarbazepine phenytoin rifampin St. (Norethindrone and ethinyl estradiol label, Drug interactions)

  • Norgestimate and ethinyl estradioloral contraceptiveModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (Norgestimate and ethinyl estradiol label, Drug interactions)

  • Norgestrel and ethinyl estradioloral contraceptiveModerate

    Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate rifabutin, rufinamide, aprepitant, and products containing St. (Norgestrel and ethinyl estradiol label, Drug interactions)

  • Nortriptylinetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • OfloxacinfluoroquinoloneModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • OlanzapineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Olanzapine and fluoxetineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Olmesartanangiotensin II receptor blocker (ARB)Moderate

    NSAID use may lead to increased risk of renal impairment and loss of antihypertensive effect ( 7.2 ). (Olmesartan label, Drug interactions)

  • Olmesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Reduced diuretic, natriuretic and antihypertensive effects; increased risk of renal toxicity ( 7.3 ) (Olmesartan and hydrochlorothiazide label, Drug interactions)

  • Olmesartan, amlodipine, and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Olmesartan medoxomil ( 7.1 ): • Nonsteroidal anti-inflammatory drugs (NSAIDS): May lead to increased risk of renal impairment and loss of antihypertensive effect. (Olmesartan, amlodipine, and hydrochlorothiazide label, Drug interactions)

  • Omeprazole and sodium bicarbonateproton pump inhibitorModerate

    When using KONVOMEP, consider alternative antiplatelet therapy [see Drug Interactions ( 7 ) and Clinical Pharmacology ( 12.3 )] . (Omeprazole and sodium bicarbonate label, Warnings and precautions)

  • Orphenadrinemuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • OxcarbazepineanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PaliperidoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • ParoxetineSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs, other antiplatelet drugs, warfarin, and other anticoagulant drugs may increase risk. (Paroxetine label, Warnings and precautions)

  • PerampanelanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PerindoprilACE inhibitorModerate

    NSAID use may lead to increased risk of renal impairment and loss of antihypertensive effect. (Perindopril label, Drug interactions)

  • Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PhentermineCNS stimulantModerate

    Risk of Abuse and Dependence Phentermine is related chemically and pharmacologically to amphetamine (d- and d l l-amphetamine) and other related stimulant drugs that have been extensively abused. (Phentermine label, Warnings and precautions)

  • Phentermine and topiramateCNS stimulantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PhenylephrinedecongestantModerate

    Pressor Effect with Concomitant Oxytocic Drugs Oxytocic drugs potentiate the increasing blood pressure effect of sympathomimetic pressor amines including BIORPHEN [see Drug Interactions (7.1) ] , with the potential for hemorrhagic stroke. (Phenylephrine label, Warnings and precautions)

  • PhenytoinanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PimavanserinantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PioglitazonethiazolidinedioneModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Pioglitazone and glimepiridethiazolidinedioneModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Pioglitazone and metforminthiazolidinedioneModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Posaconazoleazole antifungalModerate

    Concomitant Use with Midazolam : Noxafil can prolong hypnotic/sedative effects. (Posaconazole label, Warnings and precautions)

  • Potassium chloridepotassium supplementModerate

    Nonsteroidal anti-inflammatory drugs: Monitor for hyperkalemia ( 7.3 ) (Potassium chloride label, Drug interactions)

  • Potassium citratepotassium supplementModerate

    Nonsteroidal Anti-inflammatory drugs (NSAIDs) monitor for hyperkalemia (7.4) (Potassium citrate label, Drug interactions)

  • Pramipexoledopamine agonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PrednisolonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PrednisonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PrimaquineantimalarialModerate

    Effects of Primaquine on the Pharmacokinetics of Other Drugs CYP1A2 Substrates Published clinical and non-clinical reports indicate primaquine inhibits CYP1A2 enzyme activity and thus may lead to increased exposure of CYP1A2 substrate drugs (e.g., duloxetine, alosetron, theophylline and tizanidine) when co-administered with Primaquine phosphate Tablets. (Primaquine label, Drug interactions)

  • PrimidoneanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PromethazineantihistamineModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • PropofolCNS depressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Propylthiouracilantithyroid drugModerate

    Theophylline: Theophylline clearance may decrease when hyperthyroid patients on a stable theophylline regimen become euthyroid; a reduced dose of theophylline may be needed. (Propylthiouracil label, Drug interactions)

  • Protriptylinetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • QuetiapineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • QuinaprilACE inhibitorModerate

    Non-steroidal anti-inflammatory agents including selective cyclooxygenase-2 inhibitors (COX-2 inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including quinapril, may result in deterioration… (Quinapril label, Drug interactions)

  • QuinineantimalarialModerate

    Theophylline or Aminophylline In 20 healthy subjects who received multiple doses of quinine sulfate (648 mg every 8 hours x 7 days) with a single 300 mg oral dose of theophylline, the quinine mean C max and AUC were increased by 13% and 14% respectively. (Quinine label, Drug interactions)

  • Ramelteonsedative-hypnoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • RamiprilACE inhibitorModerate

    NSAIDS use may lead to increased risk of renal impairment and loss of antihypertensive effect (7.6). mTOR inhibitor or neprilysin inhibitor use may increase angioedema risk (7.7). (Ramipril label, Drug interactions)

  • RasagilineMAO inhibitorModerate

    Drug Interactions The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • RepaglinidemeglitinideModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • RifapentineantibioticModerate

    …Clofibrate Oral Hypoglycemics Sulfonylureas (e.g., glyburide, glipizide) Hormonal Contraceptives/Progestins Ethinyl estradiol, levonorgestrel Immunosuppressants Cyclosporine, tacrolimus Methylxanthines Theophylline Narcotic analgesics Methadone Phosphodiesterase-5 (PDE-5) Inhibitors Sildenafil Thyroid preparations Levothyroxine Tricyclic antidepressants Amitriptyline,… (Rifapentine label, Drug interactions)

  • RisperidoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Rivastigminecholinesterase inhibitorModerate

    Monitor patients using rivastigmine tartrate for symptoms of active or occult gastrointestinal bleeding, especially those at increased risk for developing ulcers, e.g., those with a history of ulcer disease or those receiving concurrent nonsteroidal anti-inflammatory drugs (NSAIDs). (Rivastigmine label, Warnings and precautions)

  • Ropiniroledopamine agonistModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • RufinamideanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Sacubitril and valsartanangiotensin II receptor blocker (ARB)Moderate

    Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): May lead to increased risk of renal impairment. (Sacubitril and valsartan label, Drug interactions)

  • SaxagliptinDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Saxagliptin and metforminDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • ScopolamineanticholinergicModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • SelegilineMAO inhibitorModerate

    Drug Interactions The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • SemaglutideGLP-1 receptor agonistModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • SertralineSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.3 ) (Sertraline label, Warnings and precautions)

  • Sevofluranegeneral anestheticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • SitagliptinDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Sitagliptin and metforminDPP-4 inhibitorModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Hyperventilation and Metabolic Acidosis: Sodium Phenylacetate and Sodium Benzoate Injection may cause side effects typically associated with salicylate overdose, such as hyperventilation and metabolic acidosis. (Sodium phenylacetate and sodium benzoate label, Warnings and precautions)

  • Sotalolbeta blockerModerate

    Beta-2-Receptor Stimulants Beta-agonists such as albuterol, terbutaline and isoproterenol may have to be administered in increased dosages when used concomitantly with sotalol. (Sotalol label, Drug interactions)

  • Spironolactonealdosterone antagonistModerate

    NSAIDs: May reduce the diuretic, natriuretic and antihypertensive effect of spironolactone oral suspension ( 7.3 ) (Spironolactone label, Drug interactions)

  • Spironolactone and hydrochlorothiazidealdosterone antagonistModerate

    …following drugs or potassium sources may lead to severe hyperkalemia: • other potassium-sparing diuretics • ACE inhibitors • angiotensin II receptor antagonists • aldosterone blockers • non-steroidal anti-inflammatory drugs (NSAIDs), e.g., indomethacin • heparin and low molecular weight heparin • other drugs or conditions known to cause hyperkalemia • potassium supplements… (Spironolactone and hydrochlorothiazide label, Warnings)

  • SucralfateModerate

    Drug Interactions Some studies have shown that simultaneous sucralfate administration in healthy volunteers reduced the extent of absorption (bioavailability) of single doses of the following: cimetidine, digoxin, fluoroquinolone antibiotics, ketoconazole, l-thyroxine, phenytoin, quinidine, ranitidine, tetracycline, and theophylline. (Sucralfate label, Drug interactions)

  • SulfadiazinesulfonamideModerate

    Conversely, agents such as indomethacin, probenecid and salicylates may displace sulfonamides from plasma albumin and increase the concentrations of free drug in plasma. (Sulfadiazine label, Drug interactions)

  • Suvorexantsedative-hypnoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TadalafilPDE5 inhibitorModerate

    When administered in combination with aspirin, tadalafil 20 mg did not prolong bleeding time, relative to aspirin alone. (Tadalafil label, Warnings and precautions)

  • Tamsulosinalpha blockerModerate

    Digoxin and Theophylline Dosage adjustments are not necessary when a tamsulosin hydrochloride capsule is administered concomitantly with digoxin or theophylline [see Clinical Pharmacology ( 12.3 )] . (Tamsulosin label, Drug interactions)

  • Tasimelteonsedative-hypnoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Telmisartanangiotensin II receptor blocker (ARB)Moderate

    Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including telmisartan, may… (Telmisartan label, Drug interactions)

  • Telmisartan and amlodipineangiotensin II receptor blocker (ARB)Moderate

    NSAIDS: Increased risk of renal impairment and loss of antihypertensive effect (7) (Telmisartan and amlodipine label, Drug interactions)

  • Telmisartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Non-steroidal anti-inflammatory drugs (NSAIDs): Reduced diuretic, natriuretic, and antihypertensive effects; increased risk of renal impairment ( 7.3 ) (Telmisartan and hydrochlorothiazide label, Drug interactions)

  • TenecteplaseModerate

    Because heparin, aspirin, or TNKase may cause bleeding complications, carefully monitor for bleeding, especially at arterial puncture sites. (Tenecteplase label, Warnings and precautions)

  • TerbinafineantifungalModerate

    Terbinafine decreases the clearance of caffeine by 19%. (Terbinafine label, Drug interactions)

  • TeriflunomideimmunosuppressantModerate

    In patients taking AUBAGIO, exposure of drugs metabolized by CYP1A2 (e.g., alosetron, duloxetine, theophylline, tizanidine) may be reduced. (Teriflunomide label, Drug interactions)

  • TetrabenazineVMAT2 inhibitorModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TheophyllinemethylxanthineModerate

    25% increase Diazepam Benzodiazepines increase CNS concentrations of adenosine, a potent CNS depressant, while theophylline blocks adenosine receptors. (Theophylline label, Drug interactions)

  • ThioridazineantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • ThiothixeneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TiagabineanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TiotropiumanticholinergicModerate

    Concomitant Respiratory Medications SPIRIVA RESPIMAT has been used concomitantly with short-acting and long-acting sympathomimetic (beta-agonists) bronchodilators, methylxanthines, oral and inhaled steroids, antihistamines, mucolytics, leukotriene modifiers, cromones, and anti-IgE treatment without increases in adverse reactions. (Tiotropium label, Drug interactions)

  • TirzepatideGLP-1 receptor agonistModerate

    Oral antidiabetic agents and insulin, causing hypoglycemia by contributing an additive effect, if dosage of Butalbital, Aspirin, and Caffeine Capsules exceeds maximum recommended daily dosage. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Tizanidinemuscle relaxantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TocilizumabimmunosuppressantModerate

    Upon initiation or discontinuation of TOFIDENCE, in patients being treated with these types of medicinal products, perform therapeutic monitoring of effect (e.g., warfarin) or drug concentration (e.g., cyclosporine or theophylline) and the individual dose of the medicinal product adjusted as needed. (Tocilizumab label, Drug interactions)

  • TofacitinibimmunosuppressantModerate

    Promptly evaluate patients treated with XELJANZ/XELJANZ XR who may be at increased risk for gastrointestinal perforation (e.g., patients with a history of diverticulitis or taking NSAIDs) and who present with new onset abdominal symptoms for early identification of gastrointestinal perforation [see Adverse Reactions (6.1) ] . (Tofacitinib label, Warnings and precautions)

  • TolcaponeModerate

    Drugs That Increase Catecholamines: Tolcapone did not influence the effect of ephedrine, an indirect sympathomimetic, on hemodynamic parameters or plasma catecholamine levels, either at rest or during exercise. (Tolcapone label, Drug interactions)

  • TopiramateanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Torsemideloop diureticModerate

    Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Reduced diuretic, natriuretic, and antihypertensive effects; risk of renal impairment. (Torsemide label, Drug interactions)

  • TrandolaprilACE inhibitorModerate

    Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors) In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including trandolapril, may result in deterioration… (Trandolapril label, Drug interactions)

  • TrazodoneantidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • TriamcinolonecorticosteroidModerate

    In patients receiving concomitant corticosteroids and chronic use of aspirin, withdrawal of corticosteroids may result in salicylism because corticosteroids enhance renal clearance of salicylates and their withdrawal is followed by return to normal rates of renal clearance. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Triamterenepotassium-sparing diureticModerate

    Caution is advised in administering nonsteroidal anti-inflammatory agents with triamterene. (Triamterene label, Drug interactions)

  • Triamterene and hydrochlorothiazidepotassium-sparing diureticModerate

    Caution is advised in administering nonsteroidal anti-inflammatory agents with triamterene and hydrochlorothiazide. (Triamterene and hydrochlorothiazide label, Drug interactions)

  • TrihexyphenidylanticholinergicModerate

    Drug Interactions Cannabinoids, barbiturates, opiates, and alcohol may have additive effects with trihexyphenidyl, and thus, an abuse potential exists. (Trihexyphenidyl label, Drug interactions)

  • The recent use of other drugs that cause CNS depression or EPS symptoms may also increase the risk; consider reducing the dosage or discontinuing the drug. (Trimethobenzamide label, Warnings and precautions)

  • Trimipraminetricyclic antidepressantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • UpadacitinibimmunosuppressantModerate

    Monitor RINVOQ/RINVOQ LQ-treated patients who may be at risk for gastrointestinal perforation (e.g., patients with a history of diverticulitis and those taking concomitant medications including NSAIDs or corticosteroids). (Upadacitinib label, Warnings and precautions)

  • Valproic acidanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Valsartanangiotensin II receptor blocker (ARB)Moderate

    Non-Steroidal Anti-Inflammatory Drug (NSAID) use may lead to increased risk of renal impairment and loss of antihypertensive effect ( 7.2 ) (Valsartan label, Drug interactions)

  • Valsartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Non-Steroidal Anti-Inflammatory Agents (NSAIDs), Including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including valsartan,… (Valsartan and hydrochlorothiazide label, Drug interactions)

  • VardenafilPDE5 inhibitorModerate

    There is no clinical evidence of any additive prolongation of the bleeding time when vardenafil is administered with aspirin. (Vardenafil label, Warnings and precautions)

  • VareniclineModerate

    • Effect of Smoking Cessation on Other Drugs: Pharmacokinetics or pharmacodynamics of certain drugs (e.g., theophylline, warfarin, insulin) may be altered, necessitating dose adjustment. (Varenicline label, Drug interactions)

  • Vecuroniumneuromuscular blockerModerate

    Thiopental Reconstituted vecuronium, which has an acid pH, should not be mixed with alkaline solutions (e.g., barbiturate solutions such as thiopental) in the same syringe or administered simultaneously during intravenous infusion through the same needle or through the same intravenous line (see DOSAGE AND ADMINISTRATION -COMPATIBILITY ). (Vecuronium label, Precautions)

  • VenlafaxineSNRIModerate

    Patients should be cautioned about the increased risk of bleeding associated with the concomitant use of Venlafaxine Extended Release Tablets and NSAIDs, aspirin, or other drugs that affect coagulation. (Venlafaxine label, Warnings and precautions)

  • Verapamilcalcium channel blockerModerate

    Aspirin In a few reported cases, coadministration of verapamil with aspirin has led to increased bleeding times greater than observed with aspirin alone. (Verapamil label, Drug interactions)

  • VigabatrinanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • VilazodoneSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.3 ) (Vilazodone label, Warnings and precautions)

  • Vitamin EVitamin and mineralModerate

    Vitamin E can inhibit platelet aggregation and vitamin K-dependent clotting, increasing bleeding risk with anticoagulant and antiplatelet drugs. (NIH Office of Dietary Supplements, Vitamin E)

  • VortioxetineantidepressantModerate

    Inform patients about the increased risk of bleeding when TRINTELLIX is coadministered with NSAIDs, aspirin, or other drugs that affect coagulation or bleeding. (Vortioxetine label, Warnings and precautions)

  • WarfarinanticoagulantModerate

    Butalbital, Aspirin, and Caffeine Capsules may enhance the effects of: Oral anticoagulants, causing bleeding by inhibiting prothrombin formation in the liver and displacing anticoagulants from plasma protein binding sites. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Zafirlukastleukotriene receptor antagonistModerate

    Coadministration of zafirlukast (40 mg/day) with aspirin (650 mg four times daily) resulted in mean increased plasma levels of zafirlukast by approximately 45%. (Zafirlukast label, Precautions)

  • ZileutonCYP1A2 inhibitorModerate

    Zileuton increases theophylline levels. (Zileuton label, Drug interactions)

  • ZiprasidoneantipsychoticModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

  • Zoledronic acidbisphosphonateModerate

    Use Reclast with caution in aspirin-sensitive patients. (Zoledronic acid label, Warnings and precautions)

  • ZonisamideanticonvulsantModerate

    Other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression. (Butalbital, aspirin, and caffeine label, Drug interactions)

Minor mentions (30)

  • Acebutololbeta blockerMinor

    A bronchodilator, such as theophylline or a β2-stimulant, should be made available in advance with instructions concerning its use. (Acebutolol label, Warnings)

  • AmantadineanticholinergicMinor

    Drug Interactions Careful observation is required when amantadine hydrochloride is administered concurrently with central nervous system stimulants. (Amantadine label, Drug interactions)

  • Atracuriumneuromuscular blockerMinor

    Atracurium besylate injection, which has an acid pH, should not be mixed with alkaline solutions (e.g., barbiturate solutions) in the same syringe or administered simultaneously during intravenous infusion through the same needle. (Atracurium label, Warnings)

  • Carboprostprostaglandin analogMinor

    Evidence from animal studies has suggested that certain other prostaglandins have some teratogenic potential. (Carboprost label, Warnings)

  • Colestipolbile acid sequestrantMinor

    No depressant effect on blood levels in humans was noted when colestipol hydrochloride was administered with any of the following drugs: aspirin, clindamycin, clofibrate, methyldopa, nicotinic acid (niacin), tolbutamide, phenytoin or warfarin. (Colestipol label, Drug interactions)

  • DroxidopasympathomimeticMinor

    (tartrazine) sensitivity in the general population is low, it is frequently seen in patients who also have aspirin hypersensitivity [see Contraindications ( 4 )]. (Droxidopa label, Warnings and precautions)

  • In vitro studies have shown no binding displacement between entacapone and other highly bound drugs, such as warfarin, salicylic acid, phenylbutazone, and diazepam. (Entacapone label, Precautions)

  • The “gasping syndrome” is characterized by central nervous system (CNS) depression, metabolic acidosis, and gasping respirations. (Epoetin alfa label, Warnings and precautions)

  • A similar association, though less marked, has been suggested for barbiturates, phenylbutazone, phenytoin sodium, and possibly with griseofulvin, ampicillin, and tetracyclines. (Ethynodiol diacetate and ethinyl estradiol label, Drug interactions)

  • Finasteride5-alpha reductase inhibitorMinor

    …angiotensin-converting enzyme (ACE) inhibitors, analgesics, anti-convulsants, beta-adrenergic blocking agents, diuretics, calcium channel blockers, cardiac nitrates, HMG-CoA reductase inhibitors, nonsteroidal anti-inflammatory drugs (NSAIDs), benzodiazepines, H 2 antagonists and quinolone anti-infectives without evidence of clinically significant adverse interactions. (Finasteride label, Drug interactions)

  • Fish oil (omega-3)Herbal and supplementMinor

    Omega-3 supplements may mildly prolong bleeding time; the combination with anticoagulants such as warfarin warrants monitoring, though clinically significant bleeding has not been consistently shown. (NIH Office of Dietary Supplements, Omega-3 Fatty Acids)

  • FosinoprilACE inhibitorMinor

    In a study with concomitant administration of aspirin and fosinopril sodium, the bioavailability of unbound fosinoprilat was not altered. (Fosinopril label, Drug interactions)

  • Garlic (supplement)Herbal and supplementMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

  • IpratropiumanticholinergicMinor

    ATROVENT HFA has been used concomitantly with other drugs, including sympathomimetic bronchodilators, methylxanthines, oral and inhaled steroids commonly used in the treatment of COPD. (Ipratropium label, Drug interactions)

  • Isoproterenolbeta-adrenergic agonistMinor

    Table 1: Clinically Relevant Interactions with Isoproterenol Epinephrine Clinical Impact Both drugs are direct cardiac stimulants, and their combined effects may induce serious arrhythmias upon simultaneous administration. (Isoproterenol label, Drug interactions)

  • IsotretinoinretinoidMinor

    Although the overall incidence of tartrazine sensitivity in the general population is low, it is frequently seen in patients who also have aspirin hypersensitivity. (Isotretinoin label, Warnings and precautions)

  • John’s wort, rifampicin, barbiturates, and phenytoin [ s ee Clinical Pharmacology ( 12.3 )] . (Ivabradine label, Drug interactions)

  • Antihistamines and/or aspirin have been used for most mild to moderate cases. (Ivermectin label, Warnings)

  • Labetalolbeta blockerMinor

    Labetalol has also been reported to produce a false-positive test for amphetamine when screening urine for the presence of drugs using the commercially available assay methods. (Labetalol label, Drug interactions)

  • Patients with Grade 1 and 2 TFR may also be treated with corticosteroids, non-steroidal anti-inflammatory drugs (NSAIDs) and/or narcotic analgesics for management of TFR symptoms. (Lenalidomide label, Warnings and precautions)

  • Penicillin Gpenicillin antibioticMinor

    These drugs include: aspirin, phenylbutazone, sulfonamides, indomethacin, thiazide diuretics, furosemide and ethacrynic acid. (Penicillin G label, Drug interactions)

  • Prazosinalpha blockerMinor

    …to date with the following: (1) cardiac glycosides– digitalis and digoxin; (2) hypoglycemics–insulin, chlorpropamide, phenformin, tolazamide, and tolbutamide; (3) tranquilizers and sedatives–chlordiazepoxide, diazepam, and phenobarbital; (4) antigout–allopurinol, colchicine, and probenecid; (5) antiarrhythmics–procainamide, propranolol (see WARNINGS however),… (Prazosin label, Drug interactions)

  • Propranololbeta blockerMinor

    Nonsteroidal Anti-Inflammatory Drugs: Nonsteroidal anti-inflammatory drugs (NSAIDs) may attenuate the antihypertensive effect of beta-adrenoreceptor blocking agents. (Propranolol label, Drug interactions)

  • QuinidineantiarrhythmicMinor

    Conversely, the pharmacokinetics of quinidine are not significantly affected by caffeine, ciprofloxacin, digoxin, felodipine, omeprazole, or quinine . (Quinidine label, Drug interactions)

  • RisedronatebisphosphonateMinor

    Aspirin/Nonsteroidal Anti-Inflammatory Drugs In the Phase 3 study comparing Risedronate sodium delayed-release 35 mg once-a-week immediately following breakfast and risedronate sodium 5 mg daily, 18% of NSAID users (any use) in both groups developed upper gastrointestinal adverse reactions. (Risedronate label, Drug interactions)

  • Rocuroniumneuromuscular blockerMinor

    Incompatibility with Alkaline Solutions Rocuronium Bromide Injection, which has an acid pH, should not be mixed with alkaline solutions (e.g., barbiturate solutions) in the same syringe or administered simultaneously during intravenous infusion through the same needle. (Rocuronium label, Warnings and precautions)

  • Ropivacainelocal anestheticMinor

    Possible interactions with drugs known to be metabolized by CYP1A2 via competitive inhibition such as theophylline and imipramine may also occur. (Ropivacaine label, Drug interactions)

  • Sixteen (16) drugs tested did not show an in vitro interaction with LOKELMA (allopurinol, apixaban, aspirin, captopril, cyclosporine, digoxin, ethinyl estradiol, lisinopril, magnesium, metformin, phenytoin, prednisone, propranolol, quinapril, spironolactone and ticagrelor). (Sodium zirconium cyclosilicate label, Drug interactions)

  • Treprostinilprostaglandin analogMinor

    Bronchospasm Like other inhaled prostaglandins, Tyvaso may cause acute bronchospasm. (Treprostinil label, Warnings and precautions)

  • In patients taking strong CYP3A4 inducers (e.g., phenytoin, barbiturates, rifampin, St. (Ubrogepant label, Drug interactions)

No significant interaction reported (7)

  • AlosetronNo interaction

    The effect on CYP1A2 was explored further in a clinical interaction study with theophylline and no effect on metabolism was observed. (Alosetron label, Drug interactions)

  • DofetilideantiarrhythmicNo interaction

    Other Drugs: In healthy volunteers, amlodipine, phenytoin, glyburide, ranitidine, omeprazole, hormone replacement therapy (a combination of conjugated estrogens and medroxyprogesterone), antacid (aluminum and magnesium hydroxides), and theophylline did not affect the pharmacokinetics of dofetilide. (Dofetilide label, Drug interactions)

  • FamciclovirantiviralNo interaction

    …Penciclovir No clinically significant alterations in penciclovir pharmacokinetics were observed following single-dose administration of 500 mg famciclovir after pretreatment with multiple doses of allopurinol, cimetidine, theophylline, zidovudine, promethazine, when given shortly after an antacid (magnesium and aluminum hydroxide), or concomitantly with emtricitabine. (Famciclovir label, Drug interactions)

  • LenacapavirantiretroviralNo interaction

    Sedatives/Hypnotics: midazolam (oral) triazolam ↑ midazolam (oral) ↑ triazolam Use with caution when midazolam or triazolam is concomitantly administered with SUNLENCA 7.4 Drugs without Clinically Significant Interactions with SUNLENCA Based on drug interaction studies conducted with SUNLENCA, no clinically significant drug interactions have been observed with:… (Lenacapavir label, Drug interactions)

  • Nifedipinedihydropyridine calcium channel blockerNo interaction

    Platelet Aggregation Inhibitors Clopidogrel: No clinically significant pharmacodynamic interactions were observed when clopidogrel was co-administered with nifedipine. (Nifedipine label, Drug interactions)

  • OseltamivirantiviralNo interaction

    …Clinically Significant Drug Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical Pharmacology (12.3) ] . (Oseltamivir label, Drug interactions)

  • SildenafilPDE5 inhibitorNo interaction

    In humans, sildenafil has no effect on bleeding time when taken alone or with aspirin. (Sildenafil label, Warnings and precautions)

Check Butalbital, aspirin, and caffeine against everything you take. Add your full list; every pair is checked at once.

Open in the checker

Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.