Acide valproïque : interactions médicamenteuses

L'association de l'alcool avec des médicaments sédatifs (opioïdes, benzodiazépines, somnifères, myorelaxants) peut provoquer une somnolence dangereuse, un ralentissement de la respiration et un surdosage. (NIAAA, Harmful Interactions: Mixing Alcohol with Medicines)

• 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. (notice Alprazolam, Mises en garde et précautions)

Drug Class Drugs within class that are contraindicated with REYATAZ Alpha 1-adrenoreceptor antagonist Alfuzosin Anticonvulsants Carbamazepine, phenobarbital, phenytoin Antiarrhythmics Amiodarone (with ritonavir), quinidine (with ritonavir) Antimycobacterials Rifampin Antineoplastics Apalutamide, encorafenib, irinotecan, ivosidenib Antipsychotics Lurasidone (with… (notice Atazanavir, Contre-indications)

• 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. (notice Azélastine et fluticasone, Mises en garde et précautions)

…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… (notice Belladone et opium, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Buprénorphine, Mise en garde encadrée)

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)] . (notice Bupropion, Contre-indications)

Concomitant use of opioids or a barbiturate with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death. (notice Butalbital, aspirine, caféine et codéine, Mise en garde encadrée)

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. (notice Butalbital, paracétamol, caféine et codéine, Mise en garde encadrée)

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. (notice Butorphanol, Mise en garde encadrée)

…diphosphate glucuronosyltransferase (UGT)1A1 enzyme induction, which may result in loss of virologic response [see Drug Interactions ( 7.2 , 7.3 ), Clinical Pharmacology ( 12.3 )] : o Anticonvulsants: Carbamazepine, oxcarbazepine, phenobarbital, phenytoin o Antimycobacterials: Rifampin, rifapentine Prior to initiation of VOCABRIA, note that use of CABENUVA (cabotegravir… (notice Cabotégravir, Contre-indications)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Carbinoxamine, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Avoid concurrent use of QUZYTTIR with alcohol or other CNS depressants because additional reduction in alertness and additional impairment of CNS performance may occur. (notice Cétirizine, Mises en garde et précautions)

Table 8: Drugs That are Affected by and Affecting Ciprofloxacin Drugs That are Affected by Ciprofloxacin Drug(s) Recommendation Comments Tizanidine Contraindicated Concomitant administration of tizanidine and ciprofloxacin is contraindicated due to the potentiation of hypotensive and sedative effects of tizanidine [see Contraindications ( 4.2 )]. (notice Ciprofloxacine, Interactions médicamenteuses)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Avoid use with other central nervous system (CNS) depressants ( 5.3 ) (notice Clonidine, Mises en garde et précautions)

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. (notice Codéine, Mise en garde encadrée)

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… (notice Cyclobenzaprine, Interactions médicamenteuses)

…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… (notice Darunavir, Contre-indications)

Alpha 1-adrenoreceptor antagonist: alfuzosin Anticonvulsants: carbamazepine, phenobarbital, phenytoin Anti-gout: colchicine, in patients with renal and/or hepatic impairment Antimycobacterial: rifampin Antipsychotics: lurasidone, pimozide Cardiac Disorders: dronedarone, ivabradine, ranolazine Ergot derivatives, e.g. dihydroergotamine, ergotamine, methylergonovine… (notice Darunavir et cobicistat, Contre-indications)

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 ). (notice Diphénoxylate et atropine, Contre-indications)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

These drugs include, but are not limited to, the following: the anticonvulsants carbamazepine, oxcarbazepine, phenobarbital, phenytoin the androgen receptor inhibitor enzalutamide the antimycobacterials rifampin, rifapentine the cytotoxic agent mitotane St. (notice Doravirine, Contre-indications)

Alpha 1-adrenoreceptor antagonist: alfuzosin Anticonvulsants: carbamazepine, phenobarbital, phenytoin Antimycobacterial: rifampin Antipsychotics: lurasidone, pimozide Ergot Derivatives: dihydroergotamine, ergotamine, methylergonovine Herbal Products: St. (notice Elvitégravir, cobicistat, emtricitabine et ténofovir, Contre-indications)

…virologic response and possible resistance to COMPLERA or to the class of NNRTIs [see Warnings and Precautions (5.7) , Drug Interactions (7) , and Clinical Pharmacology (12.3) ]: Anticonvulsants: carbamazepine, oxcarbazepine, phenobarbital, phenytoin Antimycobacterials: rifampin, rifapentine Glucocorticoid (systemic): dexamethasone (more than a single-dose)… (notice Emtricitabine, rilpivirine et ténofovir, Contre-indications)

The concomitant use of ertapenem and valproic acid/divalproex sodium is generally not recommended. (notice Ertapénem, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

The use of LUNESTA with other sedative-hypnotics at bedtime or the middle of the night is not recommended. (notice Eszopiclone, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

• 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. (notice Fentanyl, Mise en garde encadrée)

…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). (notice Fosamprénavir, Contre-indications)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Hydrocodone, Mise en garde encadrée)

…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;… (notice Hydrocodone et chlorphénamine, Mise en garde encadrée)

…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… (notice Hydrocodone et homatropine, Mise en garde encadrée)

…LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; NEONATAL OPIOID WITHDRAWAL SYNDROME; CYTOCHROME P4503A4 INTERACTION; RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS; and SERIOUS CARDIOVASCULAR AND GASTROINTESTINAL EVENTS WARNING: SERIOUS AND LIFE-THREATENING RISKS FROM USE OF HYDROCODONE BITARTRATE AND IBUPROFEN TABLETS Addiction,… (notice Hydrocodone et ibuprofène, Mise en garde encadrée)

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. (notice Hydrocodone et paracétamol, Mise en garde encadrée)

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 . (notice Hydromorphone, Mise en garde encadrée)

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

The concomitant use of PRIMAXIN and valproic acid/divalproex sodium is generally not recommended ( 5.3 , 7.3 ). (notice Imipénem et cilastatine, Mises en garde et précautions)

To avoid phenytoin intoxication, appropriate adjustment of the anticonvulsant should be made 5,6 . (notice Isoniazide, Interactions médicamenteuses)

Anticonvulsants Carbamazepine Not recommended 2 weeks before, during, and 2 weeks after TOLSURA treatment. (notice Itraconazole, Interactions médicamenteuses)

Benzodiazepines, Opioid Analgesics, or other CNS Depressants : Concomitant use may result in profound sedation, respiratory depression, coma, or death. (notice Kétamine, Interactions médicamenteuses)

This may potentiate and prolong hypnotic and sedative effects, especially with repeated dosing or chronic administration of these agents. (notice Kétoconazole, Contre-indications)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Avoid concurrent use of alcohol or other central nervous system depressants with XYZAL. (notice Lévocétirizine, Mises en garde et précautions)

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. (notice Lévorphanol, Mise en garde encadrée)

…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… (notice Lopinavir et ritonavir, Contre-indications)

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 ) (notice Lorazépam, Mises en garde et précautions)

Risk of Breakthrough Seizures Due to Drug Interaction with Valproic Acid The concomitant use of meropenem and valproic acid or divalproex sodium is generally not recommended. (notice Méropénem, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Métaxalone, Mises en garde et précautions)

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 )]. (notice Méthadone, Mise en garde encadrée)

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… (notice Midazolam, Mise en garde encadrée)

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. (notice Morphine, Mise en garde encadrée)

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. (notice Nalbuphine, Mise en garde encadrée)

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. (notice Nalméfène, Mises en garde et précautions)

…(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). (notice Naltrexone et bupropion, Contre-indications)

…(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… (notice Nirmatrelvir et ritonavir, Contre-indications)

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. (notice Olicéridine, Mise en garde encadrée)

• Avoid concurrent use of alcohol or other central nervous system depressants with olopatadine hydrochloride nasal solution (nasal spray) ( 5.2 ). (notice Olopatadine, Mises en garde et précautions)

• 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. (notice Olopatadine et mométasone, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Abuse or misuse of illicit GHB, either alone or in combination with other CNS depressants, is associated with CNS adverse reactions, including seizure, respiratory depression, decreases in the level of consciousness, coma, and death [see Warnings and Precautions ( 5.2 )]. (notice Oxybate de sodium, Mise en garde encadrée)

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. (notice Oxycodone, Mise en garde encadrée)

…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… (notice Oxycodone et paracétamol, Mise en garde encadrée)

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. (notice Oxymorphone, Mise en garde encadrée)

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. (notice Paracétamol et codéine, Mise en garde encadrée)

…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… (notice Pentazocine et naloxone, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Péthidine, Mise en garde encadrée)

Phenelzine sulfate should not be used in combination with dextromethorphan or with CNS depressants such as alcohol and certain narcotics. (notice Phénelzine, Contre-indications)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

…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… (notice Prométhazine et codéine, Mise en garde encadrée)

If concomitant administration with carbamazepine or phenobarbital cannot be avoided, frequent monitoring of anticonvulsant drug concentrations is recommended. (notice Quinine, Interactions médicamenteuses)

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. (notice Rémifentanil, Mise en garde encadrée)

Table 2: Drugs That are Contraindicated with EDURANT and EDURANT PED Drug Class Contraindicated Drugs in Class Clinical Comment Anticonvulsants Carbamazepine Oxcarbazepine Phenobarbital Phenytoin Potential for significant decreases in rilpivirine plasma concentrations due to CYP3A enzyme induction, which may result in loss of virologic response. (notice Rilpivirine, Contre-indications)

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… (notice Ritonavir, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Anticonvulsants: carbamazepine phenytoin phenobarbital ↓ sofosbuvir ↓ velpatasvir ↓ voxilaprevir Coadministration is not recommended. (notice Sofosbuvir et velpatasvir, Interactions médicamenteuses)

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. (notice Tapentadol, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

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. (notice Tramadol, Mise en garde encadrée)

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. (notice Tramadol et paracétamol, Mise en garde encadrée)

• 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. (notice Triazolam, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

The use of zaleplon with other sedative-hypnotics at bedtime or the middle of the night is not recommended (see ). (notice Zaléplone, Mises en garde)

The use of Zolpidem Tartrate with other sedative-hypnotics (including other zolpidem products) at bedtime or the middle of the night is not recommended. (notice Zolpidem, Mises en garde et précautions)

Children under the age of two years are at a considerably increased risk of developing fatal hepatotoxicity, especially those on multiple anticonvulsants, those with congenital metabolic disorders, those with severe seizure disorders accompanied by mental retardation, and those with organic brain disease. (notice Acide valproïque, Mise en garde encadrée)

By decreasing the gastrointestinal absorption of primidone, acetazolamide may decrease serum concentrations of primidone and its metabolites, with a consequent possible decrease in anticonvulsant effect. (notice Acétazolamide, Interactions médicamenteuses)

Effects of VYKOURA on Other Drugs Certain Antiepileptic Drugs Increase monitoring for seizure activity in patients taking certain concomitant antiepileptic drugs. (notice Acide folinique, Interactions médicamenteuses)

Evidence suggests that folic acid supplementation prior to conception and during the first trimester of pregnancy decreases the risk for congenital neural tube defects in the general population . (notice Acide valproïque, Mises en garde et précautions)

Effects of Leucovorin Products on Other Drugs Antiepileptic Drugs Folic acid in large amounts may counteract the antiepileptic effect of phenobarbital, phenytoin and primidone and increase the frequency of seizures in susceptible children. (notice Acide lévofolinique, Interactions médicamenteuses)

Risk of Neurologic Symptoms: Neurocysticercosis patients may experience cerebral hypertensive episodes, seizures or focal neurologic deficits after initiation of therapy; begin appropriate steroid and anticonvulsant therapy. (notice Albendazole, Mises en garde et précautions)

Inform patients also that the central nervous system depressant effects of allopurinol tablets may be additive to those of alcohol and other CNS depressants. (notice Allopurinol, Mises en garde et précautions)

25% increase Diazepam Benzodiazepines increase CNS concentrations of adenosine, a potent CNS depressant, while theophylline blocks adenosine receptors. (notice Aminophylline, Interactions médicamenteuses)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Amoxapine may enhance the response to alcohol and the effects of barbiturates and other CNS depressants. (notice Amoxapine, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

…cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine Monoamine Oxidase Inhibitors, Nonselective Beta-Adrenergic… (notice Articaïne et adrénaline, Interactions médicamenteuses)

In addition, valproic acid and lithium pre-dose serum concentrations collected from an adjunctive therapy study were comparable between asenapine-treated patients and placebo-treated patients indicating a lack of effect of asenapine on valproic and lithium plasma levels. (notice Asénapine, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Patients should also be cautioned that the central nervous system depressant effects of intrathecal baclofen may be additive to those of alcohol and other CNS depressants. (notice Baclofène, Mises en garde et précautions)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Sedatives/Hypnotics: midazolam (oral) triazolam ↑ midazolam (oral) ↑ triazolam Use caution when midazolam or triazolam is concomitantly administered with BIXLENVO. (notice Bictégravir, emtricitabine et ténofovir alafénamide, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Use with CNS depressants may result in an additive or potentiating effect. (notice Brimonidine, Interactions médicamenteuses)

Use with CNS depressants may result in an additive or potentiating effect. (notice Brimonidine et timolol, Interactions médicamenteuses)

Central Nervous System (CNS) depressants Antihistamines have additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, antianxiety agents, etc.). Antihypertensive drugs Sympathomimetic may reduce the effects of antihypertensive drugs. (notice Bromphéniramine, pseudoéphédrine et dextrométhorphane, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

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. (notice Bupivacaïne, Mises en garde et précautions)

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. (notice Bupivacaïne et adrénaline, Mises en garde et précautions)

Warn patients of the potential danger of self-administration of benzodiazepines or other CNS depressants while under treatment with buprenorphine and naloxone sublingual tablets [see Warnings and Precautions (5.3) , Drug Interactions (7) ] . (notice Buprénorphine et naloxone, Mises en garde et précautions)

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

All patients receiving concomitant barbiturate therapy should be closely monitored for neurological toxicity. (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

All patients receiving concomitant barbiturate therapy should be closely monitored for neurological toxicity. (notice Acide valproïque, Interactions médicamenteuses)

• Additive sedative effects when used with other CNS depressants including alcohol (5.1) (notice Carisoprodol, Mises en garde et précautions)

The concomitant use of alcohol or other central nervous system depressants may have an additive effect. (notice Chlordiazépoxide, Mises en garde)

Effects on the Ability to Drive or Operate Machinery As in the case of other preparations containing CNS-acting drugs, patients receiving Librax should be cautioned about possible combined effects with opioids, alcohol and other CNS depressants. (notice Chlordiazépoxide et clidinium, Mises en garde)

…procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Chloroprocaïne, Précautions)

Chlorpromazine A study involving the administration of 100 to 300 mg/day of chlorpromazine to schizophrenic patients already receiving valproate (200 mg BID) revealed a 15% increase in trough plasma levels of valproate. (notice Acide valproïque, Interactions médicamenteuses)

Chlorzoxazone use should also be discontinued if a patient develops abnormal liver enzymes (e.g., AST, ALT, alkaline phosphatase and bilirubin.) The concomitant use of alcohol or other central nervous system depressants may have an additive effect. (notice Chlorzoxazone, Mises en garde et précautions)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Drugs/Dietary Supplements That Decrease Cyclosporine Concentrations Antibiotics Anticonvulsants Other Drugs/Dietary Supplements nafcillin carbamazepine bosentan St. (notice Ciclosporine, Interactions médicamenteuses)

Antiepileptics: Carbamazepine Use With Caution Carbamazepine: Concomitant administration of single doses of clarithromycin and carbamazepine has been shown to result in increased plasma concentrations of carbamazepine. (notice Clarithromycine, Interactions médicamenteuses)

Use with CNS Depressants Clemastine has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc.). Use in Activities Requiring Mental Alertness Patients should be warned about engaging in activities requiring mental alertness such as driving a car or operating appliances, machinery, etc. (notice Clémastine, Mises en garde)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

The finding of increased risk with AEDs of varying mechanisms of action and across a range of indications suggests that the risk applies to all AEDs used for any indication. (notice Clorazépate, Mises en garde)

Cholestyramine Cholestyramine, when concurrently administered with valproic acid, led to, on average, a 14% decrease in plasma levels of valproic acid in a study conducted in 6 healthy subjects administered valproic acid oral solution and cholestyramine. (notice Acide valproïque, Interactions médicamenteuses)

CNS Depressants Antihistamines may have additive effects with alcohol and other CNS depressants, e.g., hypnotics, sedatives, tranquilizers, antianxiety agents. (notice Cyproheptadine, Mises en garde)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Risk increases when used with other central nervous system (CNS) depressants. (notice Daridorexant, Mises en garde et précautions)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Alcohol or other sedating drugs: May have additive sedation and somnolence ( 7.5 ) (notice Deutétrabénazine, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Use with CNS Depressants CORPHENA Oral Solution has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc.). Use in Activities Requiring Mental Alertness Patients should be warned about engaging in activities requiring mental alertness such as driving a car or operating appliances, machinery, etc. (notice Dexchlorphéniramine, Mises en garde)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Co-administration of valproate (1,500 mg daily) increased the free fraction of diazepam (10 mg) by 90% in healthy volunteers (n = 6). (notice Acide valproïque, Interactions médicamenteuses)

Exercise caution when prescribing ZIPSOR with concomitant drugs that are known to be potentially hepatotoxic (e.g., acetaminophen, antibiotics, antiepileptics). (notice Diclofénac, Mises en garde et précautions)

Exercise caution when prescribing diclofenac sodium/misoprostol with concomitant drugs that are known to be potentially hepatotoxic (e.g., antibiotics, anti-epileptics). (notice Diclofénac et misoprostol, Mises en garde et précautions)

The concomitant use of alcohol or other central nervous system depressants may have an additive effect. (notice Dimenhydrinate, Mises en garde)

Drug Interactions Diphenhydramine hydrochloride has additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, etc). (notice Diphénhydramine, Interactions médicamenteuses)

Although behaviors such as "sleep-driving" may occur with hypnotics alone at therapeutic doses, the use of alcohol and other CNS depressants with hypnotics appears to increase the risk of such behaviors, as does the use of hypnotics at doses exceeding the maximum recommended dose. (notice Doxépine, Mises en garde et précautions)

Barbiturates and Anti-Epileptics Barbiturates, carbamazepine, and phenytoin decrease the half-life of doxycycline. (notice Doxycycline, Interactions médicamenteuses)

Seizures and Seizure-like Activity : Weigh the potential risk versus benefits before prescribing dronabinol oral solution to patients with a history of seizures, including those requiring anti-epileptic medication or with other factors that lower the seizure threshold. (notice Dronabinol, Mises en garde et précautions)

Following the administration of droperidol, the dose of other CNS depressant drugs should be reduced. (notice Dropéridol, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Other Agents Anticonvulsants: carbamazepine oxcarbazepine phenobarbital phenytoin ↓ TAF Consider alternative anticonvulsant. (notice Emtricitabine et ténofovir, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Although behaviors such as sleep-driving may occur with sedative-hypnotics alone at therapeutic doses, the use of alcohol and other CNS depressants with sedative-hypnotics appears to increase the risk of such behaviors, as does the use of sedative-hypnotics at doses exceeding the maximum recommended dose. (notice Estazolam, Mises en garde)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Anticonvulsants - In a pharmacokinetic study, maximum plasma concentrations of felodipine were considerably lower in epileptic patients on long-term anticonvulsant therapy (e.g., phenytoin, carbamazepine, or phenobarbital) than in healthy volunteers. (notice Félodipine, Interactions médicamenteuses)

Exacerbated by other CNS depressants, and in settings where flibanserin concentrations are increased. (notice Flibansérine, Mises en garde et précautions)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Possible risk factors for seizures include: concurrent major sedative-hypnotic drug withdrawal, recent therapy with repeated doses of parenteral benzodiazepines, myoclonic jerking or seizure activity prior to flumazenil administration in overdose cases, or concurrent cyclic antidepressant poisoning. (notice Flumazénil, Mises en garde)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Anticonvulsants: Potential for elevated phenytoin and carbamazepine levels and clinical anticonvulsant toxicity ( 7.7 ) (notice Fluoxétine, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Other Anticholinergic Drugs There is potential for an additive interaction between glycopyrrolate and concomitantly used anticholinergic drugs (e.g., tricyclic antidepressants, anti-epileptics, class I antiarrhythmics, anti­-spasmodics, amantadine) resulting in increased anticholinergic adverse reactions. (notice Glycopyrronium, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Strong CYP3A4 Inducers Exposure to irinotecan or its active metabolite SN-38 is substantially reduced in adult and pediatric patients concomitantly receiving the CYP3A4 enzyme-inducing anticonvulsants phenytoin, phenobarbital, carbamazepine, or St. (notice Irinotécan, Interactions médicamenteuses)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Anticonvulsants: carbamazepine phenytoin phenobarbital ↓ ledipasvir ↓ sofosbuvir Coadministration of ledipasvir and sofosbuvir with carbamazepine, phenytoin, or phenobarbital is expected to decrease the concentration of ledipasvir and sofosbuvir, leading to reduced therapeutic effect of ledipasvir and sofosbuvir. (notice Lédipasvir et sofosbuvir, Interactions médicamenteuses)

Risk increases with dose and use with other central nervous system (CNS) depressants. (notice Lemborexant, Mises en garde et précautions)

Anticonvulsants: carbamazepine oxcarbazepine phenobarbital phenytoin ↓ lenacapavir Concomitant administration of carbamazepine, oxcarbazepine, phenobarbital, or phenytoin may result in loss of therapeutic effect and development of resistance. (notice Lénacapavir, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

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. (notice Lidocaïne et adrénaline, Mises en garde et précautions)

…prilocaine, procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, isofamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sufonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Lidocaïne et prilocaïne, Interactions médicamenteuses)

Increased Risk of CNS Depression with Concomitant use of CNS Depressant Drugs : Lofexidine tablets potentiates the CNS depressant effects of benzodiazepines and may potentiate the CNS depressant effects of alcohol, barbiturates, and other sedating drugs. (notice Lofexidine, Mises en garde et précautions)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

• Coadministration of meclizine hydrochloride with other CNS depressants, including alcohol, may result in increased CNS depression ( 7.1 ). (notice Méclozine, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Anticonvulsants In patients taking an anticonvulsant (e.g., valproic acid, carbamazepine, phenobarbital or phenytoin), the concomitant use of mefloquine may reduce seizure control by lowering the plasma levels of the anticonvulsant. (notice Méfloquine, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

…procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine (notice Mépivacaïne, Interactions médicamenteuses)

Additive Effects Since the effects of meprobamate and alcohol or meprobamate and other CNS depressants or psychotropic drugs may be additive,appropriate caution should be exercised with patients who take more than one of these agents simultaneously. (notice Méprobamate, Mises en garde)

Patients receiving ATMEKSI (methocarbamol) Oral Suspension should be cautioned about combined effects with alcohol and other CNS depressants [ see Drug Interactions (7.1) ]. (notice Méthocarbamol, Mises en garde et précautions)

All patients receiving concomitant barbiturate therapy should be closely monitored for neurological toxicity. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Concurrent use of metyrosine with alcohol or other CNS depressants can increase their sedative effects. (notice Métirosine, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

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. (notice Naloxone, Mises en garde et précautions)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Valproic acid may increase the exposure to nifedipine during concomitant therapy. (notice Nifédipine, Précautions)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Co-administration of valproate (500 mg BID) and olanzapine (5 mg) to healthy adults (n=10) caused 15% reduction in C max and 35% reduction in AUC of olanzapine. (notice Acide valproïque, Interactions médicamenteuses)

Co-administration of valproate (500 mg BID) and olanzapine (5 mg) to healthy adults (n=10) caused 15% reduction in C max and 35% reduction in AUC of olanzapine. (notice Acide valproïque, Interactions médicamenteuses)

Drug Interactions and Decreased Vitamin Absorption ORLISTAT may interact with concomitant drugs including cyclosporine, levothyroxine, warfarin, amiodarone, antiepileptic drugs, and antiretroviral drugs [see Drug Interactions (7) ]. (notice Orlistat, Mises en garde et précautions)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

Patients should be warned that the effects of alcohol or other CNS-depressant drugs may be additive to those of Oxazepam, possibly requiring adjustment of dosage or elimination of such agents. (notice Oxazépam, Mises en garde)

If the patient is being treated with an anticonvulsant agent, increased dosage of that agent may be required when perphenazine products are used concomitantly. (notice Perphénazine, Mises en garde)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Corticosteroids, valproic acid, or haloperidol : May increase plasma ammonia level; monitor ammonia levels closely. (notice Phénylbutyrate de glycérol, Interactions médicamenteuses)

Valproic Acid, Haloperidol, or Corticosteroids : May increase plasma ammonia level; monitor ammonia levels closely. (notice Phénylbutyrate de sodium, Interactions médicamenteuses)

Concomitant Use with Midazolam : Noxafil can prolong hypnotic/sedative effects. (notice Posaconazole, Mises en garde et précautions)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

…cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine The administration of local anesthetic injections containing… (notice Prilocaïne et adrénaline, Interactions médicamenteuses)

Phenothiazines may lower the convulsive threshold; dosage adjustments of anticonvulsants may be necessary. (notice Prochlorpérazine, Précautions)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (notice Acide valproïque, Interactions médicamenteuses)

The impairment may be amplified by concomitant use of other central-nervous-system depressants such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore such agents should either be eliminated or given in reduced dosage in the presence of promethazine… (notice Prométhazine, Mises en garde)

The impairment may be amplified by concomitant use of other central-nervous-system depressants such as alcohol, sedatives/hypnotics (including barbiturates), narcotics, narcotic analgesics, general anesthetics, tricyclic antidepressants, and tranquilizers; therefore such agents should either be eliminated or given in reduced dosage in the presence of promethazine… (notice Prométhazine et dextrométhorphane, Mises en garde)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Protriptyline may enhance the response to alcohol and the effects of barbiturates and other CNS depressants. (notice Protriptyline, Interactions médicamenteuses)

The use of alcohol and other CNS depressants may increase the risk of such behaviors. (notice Rameltéon, Mises en garde et précautions)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Rifampin A study involving the administration of a single dose of valproate (7 mg/kg) 36 hours after 5 nights of daily dosing with rifampin (600 mg) revealed a 40% increase in the oral clearance of valproate. (notice Acide valproïque, Interactions médicamenteuses)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

The therapeutic relevance of this is unknown; however, coagulation tests should be monitored if valproate therapy is instituted in patients taking anticoagulants. (notice Acide valproïque, Interactions médicamenteuses)

Reduced Rocuronium Bromide Injection activity possible : Anticonvulsants. (notice Rocuronium, Interactions médicamenteuses)

…cyclophosphamide, flutamide, hydroxyurea, ifosfamide, rasburicase Antibiotics dapsone, nitrofurantoin, para-aminosalicylic acid, sulfonamides Antimalarials chloroquine, primaquine Anticonvulsants Phenobarbital, phenytoin, sodium valproate Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine NAROPIN should be used with caution in patients receiving… (notice Ropivacaïne, Interactions médicamenteuses)

Inhibitors of Folate Synthesis (e.g., methotrexate, valproic acid, phenobarbital, trimethoprim) Clinical Impact In vitro and in vivo nonclinical data suggest that drugs that inhibit folate synthesis may decrease the bioavailability of endogenous BH4 by inhibiting the enzyme dihydrofolate reductase, which is involved in the recycling (regeneration) of BH4. (notice Saproptérine, Interactions médicamenteuses)

Weigh this potential risk against the benefits before prescribing TRANSDERM SCŌP to patients with a history of seizures, including those receiving anti-epileptic medication or who have risk factors that can lower the seizure threshold. (notice Scopolamine, Mises en garde et précautions)

Co-administration with other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants, alcohol) increases the risk of CNS depression. (notice Suvorexant, Mises en garde et précautions)

Hepatic enzyme-inducing drugs (e.g., phenytoin, carbamazepine, phenobarbital, primidone, rifampin) can increase valproate clearance, while enzyme inhibitors (e.g., felbamate) can decrease valproate clearance. (notice Acide valproïque, Interactions médicamenteuses)

Strong CYP3A Inducers c : Antimycobacterials (e.g., rifampin, rifabutin), anticonvulsants (e.g., phenytoin, carbamazepine and phenobarbital), St John’s wort May decrease tacrolimus whole blood trough concentrations and increase the risk of rejection [see Warnings and Precautions ( 5.10 )]. (notice Tacrolimus, Interactions médicamenteuses)

Although behaviors such as “sleep-driving” may occur with temazepam capsules alone at therapeutic doses, the use of alcohol and other CNS depressants with temazepam capsules appear to increase the risk of such behaviors, as does the use of temazepam capsules at doses exceeding the maximum recommended dose. (notice Témazépam, Mises en garde)

Alcohol or Other Sedating Drugs Concomitant use of alcohol or other sedating drugs may have additive effects and worsen sedation and somnolence [see Warnings and Precautions (5.7) ] . (notice Tétrabénazine, Interactions médicamenteuses)

25% increase Diazepam Benzodiazepines increase CNS concentrations of adenosine, a potent CNS depressant, while theophylline blocks adenosine receptors. (notice Théophylline, Interactions médicamenteuses)

Phenytoin, fosphenytoin: Adjustment of anticonvulsant and/or tinidazole dose(s) may be needed ( 7.1, 7.2 ) (notice Tinidazole, Interactions médicamenteuses)

Sedation: Zanaflex may interfere with everyday activities; sedative effects of Zanaflex, alcohol, and other central nervous system (CNS) depressants are additive ( 5.3 , 7.4 ) (notice Tizanidine, Mises en garde et précautions)

Excessive reduction of blood glucose (additive effect) f CNS depressant agents (including opioids, alcohol, sedatives, hypnotics) Use with caution d Increased CNS depression Dietary supplements containing sympathomimetics Contraindicated a Antidepressants including but not limited to: Other MAOIs (e.g., linezolid, intravenous methylene blue, selective MAOIs)… (notice Tranylcypromine, Interactions médicamenteuses)

Intervention: Patients should be counseled that RALDESY may enhance the response to alcohol, barbiturates, and other CNS depressants. (notice Trazodone, Interactions médicamenteuses)

Oral Contraceptive Steroids Administration of a single-dose of ethinyloestradiol (50 mcg)/levonorgestrel (250 mcg) to 6 women on valproate (200 mg BID) therapy for 2 months did not reveal any pharmacokinetic interaction. (notice Acide valproïque, Interactions médicamenteuses)

Phenothiazines may lower the convulsive threshold; dosage adjustments of anticonvulsants may be necessary. (notice Trifluopérazine, Précautions)

Concurrent use of alcohol or other CNS depressants with trihexyphenidyl may cause increased sedative effects. (notice Trihexyphénidyle, Interactions médicamenteuses)

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. (notice Triméthobenzamide, Mises en garde et précautions)

Drug Interactions The simultaneous oral or intravenous administration of phenytoin and antineoplastic chemotherapy combinations that included vincristine sulfate has been reported to reduce blood levels of the anticonvulsant and to increase seizure activity. (notice Vincristine, Interactions médicamenteuses)

Eszopiclone (CYP3A4 Inhibition) Not Studied In Vivo or In Vitro , but Drug Plasma Exposure Likely to be Increased which may Increase the Sedative Effect of Eszopiclone Dose reduction of eszopiclone is recommended. (notice Voriconazole, Interactions médicamenteuses)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Dosage adjustment of amitriptyline/nortriptyline, propofol, warfarin, and zidovudine may be necessary if used concomitantly with valproic acid oral solution (7.2) (notice Acide valproïque, Interactions médicamenteuses)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

Anticonvulsant therapy can be given if clinically indicated. (notice Céfalexine, Mises en garde et précautions)

Anticonvulsant therapy should be continued in patients with known seizure disorders. (notice Céfazoline, Mises en garde et précautions)

Cimetidine and Ranitidine Cimetidine and ranitidine do not affect the clearance of valproate. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Antihistamines Amphetamines may counteract the sedative effect of antihistamines. (notice Dexamfétamine, Interactions médicamenteuses)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

In Drug-Induced CNS and Respiratory Depression Doxapram alone may not stimulate adequate spontaneous breathing or provide sufficient arousal in patients who are severely depressed either due to respiratory failure or to CNS depressant drugs, but may be used as an adjunct to established supportive measures and resuscitative techniques. (notice Doxapram, Mises en garde)

Concurrent use of alcohol and other CNS depressants (such as hypnotic sedatives and tranquilizers) with doxylamine succinate and pyridoxine hydrochloride delayed-release tablets is not recommended. (notice Doxylamine et pyridoxine, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

The “gasping syndrome” is characterized by central nervous system (CNS) depression, metabolic acidosis, and gasping respirations. (notice Époétine alfa, Mises en garde et précautions)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Antiepileptics The activity of antiepileptic drugs might be impaired if co-administered with PLAQUENIL. (notice Hydroxychloroquine, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Antiepileptic Drugs Sporadic cases of seizures have been reported during concomitant use of ketorolac tromethamine and antiepileptic drugs (phenytoin, carbamazepine). (notice Kétorolac, Interactions médicamenteuses)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

Therefore, ambulatory patients should be warned about activities requiring alertness (e.g., operating vehicles or machinery) and about concomitant use of alcohol and other CNS depressants. (notice Loxapine, Mises en garde)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

Anticonvulsants, psychotropic, hormone preparations, corticosteroids, antithyroid agents, cyproheptadine: may affect the results of the metyrapone test. (notice Métyrapone, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Moderate and weak CYP3A4 inhibitors include alprozalam, ameprenavir, amiodarone, aprepitant, atazanavir, cimetidine, cyclosporine, diltiazem, erythromycin, fluconazole, fluoxetine, isoniazid, oral contraceptives, quinuprestin/dalfopristin, valproic acid, and verapamil. (notice Nimodipine, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

There have been reports that valproic acid can induce hyperammonemia through inhibition of the synthesis of N-acetylglutamate, a co-factor for carbamyl phosphate synthetase. (notice Phénylacétate de sodium et benzoate de sodium, Interactions médicamenteuses)

…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),… (notice Prazosine, Interactions médicamenteuses)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

Cimetidine and Ranitidine Cimetidine and ranitidine do not affect the clearance of valproate. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Additionally, the relevance of these in vitro findings is uncertain for patients receiving maximally suppressive antiretroviral therapy. (notice Acide valproïque, Mises en garde et précautions)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

These data suggest that GH may alter the clearance of compounds known to be metabolized by CYP450 liver enzymes (e.g., corticosteroids, sex steroids, anticonvulsants, and cyclosporine). (notice Tésamoréline, Interactions médicamenteuses)

Effect on Ketone and Thyroid Function Tests Valproate is partially eliminated in the urine as a keto-metabolite which may lead to a false interpretation of the urine ketone test. (notice Acide valproïque, Mises en garde et précautions)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

In contrast, drugs that are inhibitors of cytochrome P450 isozymes, e.g., antidepressants, may be expected to have little effect on valproate clearance because cytochrome P450 microsomal mediated oxidation is a relatively minor secondary metabolic pathway compared to glucuronidation and beta-oxidation. (notice Acide valproïque, Interactions médicamenteuses)

Drugs for which either no interaction or a likely clinically unimportant interaction has been observed Antacids A study involving the co-administration of valproate 500 mg with commonly administered antacids (Maalox, Trisogel, and Titralac - 160 mEq doses) did not reveal any effect on the extent of absorption of valproate. (notice Acide valproïque, Interactions médicamenteuses)

Drugs for which either no interaction or a likely clinically unimportant interaction has been observed Antacids A study involving the co-administration of valproate 500 mg with commonly administered antacids (Maalox, Trisogel, and Titralac - 160 mEq doses) did not reveal any effect on the extent of absorption of valproate. (notice Acide valproïque, Interactions médicamenteuses)

Clozapine In psychotic patients (n = 11), no interaction was observed when valproate was co-administered with clozapine. (notice Acide valproïque, Interactions médicamenteuses)

Haloperidol A study involving the administration of 6 to 10 mg/day of haloperidol to schizophrenic patients already receiving valproate (200 mg BID) revealed no significant changes in valproate trough plasma levels. (notice Acide valproïque, Interactions médicamenteuses)

Lithium Co-administration of valproate (500 mg BID) and lithium carbonate (300 mg TID) to normal male volunteers (n = 16) had no effect on the steady-state kinetics of lithium. (notice Acide valproïque, Interactions médicamenteuses)

…adjustment is needed when SINGULAIR is co-administered with theophylline, prednisone, prednisolone, oral contraceptives, fexofenadine, digoxin, warfarin, gemfibrozil, itraconazole, thyroid hormones, sedative hypnotics, non-steroidal anti-inflammatory agents, benzodiazepines, decongestants, and Cytochrome P450 (CYP) enzyme inducers [see Clinical Pharmacology (12.3) ]. (notice Montélukast, Interactions médicamenteuses)

Drugs for which either no interaction or a likely clinically unimportant interaction has been observed Antacids A study involving the co-administration of valproate 500 mg with commonly administered antacids (Maalox, Trisogel, and Titralac - 160 mEq doses) did not reveal any effect on the extent of absorption of valproate. (notice Acide valproïque, Interactions médicamenteuses)

Drugs for which either no interaction or a likely clinically unimportant interaction has been observed Acetaminophen Valproate had no effect on any of the pharmacokinetic parameters of acetaminophen when it was concurrently administered to three epileptic patients. (notice Acide valproïque, Interactions médicamenteuses)

Drugs for which either no interaction or a likely clinically unimportant interaction has been observed Acetaminophen Valproate had no effect on any of the pharmacokinetic parameters of acetaminophen when it was concurrently administered to three epileptic patients. (notice Acide valproïque, Interactions médicamenteuses)