Tobacco and smoking interactions

Smoke (not nicotine itself) induces the CYP1A2 enzyme, lowering blood levels of some drugs; quitting can then push those levels up.

Tobacco and smoking has 100 documented interactions across the FDA labels and fact sheets we index: 20 major, 71 moderate, 9 minor, and 0 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This tobacco and cannabis page is a starting point, not a verdict for your situation.

Interactions from the label

Major interactions (20)

  • AbrocitinibJAK inhibitorMajor

    Patients who are current or past smokers are at additional increased risk [see Warnings and Precautions (5.3) ] . (Abrocitinib label, Boxed warning)

  • BaricitinibJAK inhibitorMajor

    Patients who are current or past smokers are at additional increased risk [see Warnings and Precautions ( 5.3 )]. (Baricitinib label, Boxed warning)

  • Calcipotrienevitamin D analogMajor

    Instruct the patient the avoid fire, flame, and smoking during and immediately following application. (Calcipotriene label, Warnings and precautions)

  • Desogestrel and ethinyl estradioloral contraceptiveMajor

    WARNING: CARDIOVASCULAR RISK ASSOCIATED WITH SMOKING Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptive use. (Desogestrel and ethinyl estradiol label, Boxed warning)

  • Drospirenone and ethinyl estradioloral contraceptiveMajor

    WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptives (COC) use. (Drospirenone and ethinyl estradiol label, Boxed warning)

  • Econazoleazole antifungalMajor

    Instruct the patient to avoid heat, flame, and/or smoking during and immediately following application. (Econazole label, Warnings and precautions)

  • Avoid smoking tobacco (CYP1A2 inducer) and avoid concomitant use of erlotinib with moderate CYP1A2 inducers (e.g., teriflunomide, rifampin, or phenytoin). (Erlotinib label, Drug interactions)

  • Estradiol and dienogestoral contraceptiveMajor

    WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptives (COC) use. (Estradiol and dienogest label, Boxed warning)

  • Cigarette smoking increases the risk of serious adverse effects on the heart and blood vessels from oral contraceptive use. (Ethynodiol diacetate and ethinyl estradiol label, Boxed warning)

  • WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination hormonal contraceptive (CHC) use. (Etonogestrel and ethinyl estradiol label, Boxed warning)

  • WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combined hormonal contraceptive (CHC) use. (Levonorgestrel and ethinyl estradiol label, Boxed warning)

  • NitroprussidevasodilatorMajor

    Patients with congenital (Leber's) optic atrophy or with tobacco amblyopia have unusually high cyanide/thiocyanate ratios. (Nitroprusside label, Contraindications)

  • WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS and CONTRAINDICATED IN WOMEN WITH A BMI |GTE 30 kg/m2 • Cigarette Smoking and Serious Cardiovascular Events Cigarette smoking increases the risk of serious cardiovascular events from hormonal contraceptive use. (Norelgestromin and ethinyl estradiol label, Boxed warning)

  • WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptive (COC ) use. (Norethindrone and ethinyl estradiol label, Boxed warning)

  • Norgestimate and ethinyl estradioloral contraceptiveMajor

    WARNING: CIGARETTE SMOKING and SERIOUS CARDIOVASCULAR EVENTS WARNING: CIGARETTE SMOKING and SERIOUS CARDIOVASCULAR EVENTS See full prescribing information for complete boxed warning. ● Mono-Linyah is contraindicated in women over 35 years old who smoke. (Norgestimate and ethinyl estradiol label, Boxed warning)

  • Norgestrel and ethinyl estradioloral contraceptiveMajor

    WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptive (COC) use. (Norgestrel and ethinyl estradiol label, Boxed warning)

  • PhenelzineMAO inhibitorMajor

    Therefore, patients being treated with phenelzine sulfate should avoid high protein food that has undergone protein breakdown by aging, fermentation, pickling, smoking, or bacterial contamination. (Phenelzine label, Contraindications)

  • TofacitinibimmunosuppressantMajor

    Patients who are current or past smokers are at additional increased risk. (Tofacitinib label, Boxed warning)

  • UpadacitinibimmunosuppressantMajor

    Patients who are current or past smokers are at additional increased risk [see Warnings and Precautions ( 5.3 )] . (Upadacitinib label, Boxed warning)

  • In a smoking cessation trial in patients with stable CV disease, CV events were infrequent overall; however, nonfatal myocardial infarction (MI) and nonfatal stroke occurred more frequently in patients treated with CHANTIX compared to placebo. (Varenicline label, Warnings and precautions)

Moderate interactions (71)

  • AbacavirantiretroviralModerate

    As a precaution, the underlying risk of coronary heart disease should be considered when prescribing antiretroviral therapies, including abacavir, and action taken to minimize all modifiable risk factors (e.g., hypertension, hyperlipidemia, diabetes mellitus, smoking). (Abacavir label, Warnings and precautions)

  • Abacavir and lamivudineantiretroviralModerate

    As a precaution, the underlying risk of coronary heart disease should be considered when prescribing antiretroviral therapies, including abacavir, and action taken to minimize all modifiable risk factors (e.g., hypertension, hyperlipidemia, diabetes mellitus, smoking). (Abacavir and lamivudine label, Warnings and precautions)

  • AbataceptimmunosuppressantModerate

    When receiving intravenous ORENCIA, patients that require blood glucose monitoring should be advised to consider methods that do not react with maltose, such as those based on glucose dehydrogenase nicotine adenine dinucleotide (GDH-NAD), glucose oxidase, or glucose hexokinase test methods. (Abatacept label, Drug interactions)

  • Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy, concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Acetaminophen and ibuprofen label, Warnings and precautions)

  • AdalimumabimmunosuppressantModerate

    In controlled trials of other TNF blockers in adult patients at higher risk for malignancies (i.e., patients with COPD with a significant smoking history and cyclophosphamide-treated patients with Wegener’s granulomatosis), a greater portion of malignancies occurred in the TNF blocker group compared to the control group. (Adalimumab label, Warnings and precautions)

  • AminophyllinemethylxanthineModerate

    …elevations for longer periods Hypothyroidism Liver disease; cirrhosis, acute hepatitis Reduced renal function in infants <3 months of age Sepsis with multi-organ failure Shock Cessation of Smoking Drug Interactions Adding a drug that inhibits theophylline metabolism (e.g., cimetidine, erythromycin, tacrine) or stopping a concurrently administered drug that enhances theophylline… (Aminophylline label, Warnings)

  • BudesonidecorticosteroidModerate

    Patients with major risk factors for decreased bone mineral content, such as prolonged immobilization, family history of osteoporosis, post menopausal status, tobacco use, advance age, poor nutrition, or chronic use of drugs that can reduce bone mass (e.g., anticonvulsants, oral corticosteroids) should be monitored and treated with established standards of care. (Budesonide label, Warnings and precautions)

  • Budesonide and formoterolcorticosteroidModerate

    Patients with major risk factors for decreased bone mineral content, such as prolonged immobilization, family history of osteoporosis, postmenopausal status, tobacco use, advanced age, poor nutrition, or chronic use of drugs that can reduce bone mass (e.g., anticonvulsants, oral corticosteroids) should be monitored and treated with established standards of care. (Budesonide and formoterol label, Warnings and precautions)

  • BupropionantidepressantModerate

    Monitoring of blood pressure is recommended in patients who receive the combination of bupropion and nicotine replacement. (Bupropion label, Warnings and precautions)

  • CelecoxibNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, antiplatelet drugs (such as aspirin), anticoagulants; or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Celecoxib label, Warnings and precautions)

  • ChlordiazepoxidebenzodiazepineModerate

    In addition, the majority of more recent case-control and cohort studies of benzodiazepine use during pregnancy, which were adjusted for confounding exposures to alcohol, tobacco and other medications, have not confirmed these findings. (Chlordiazepoxide label, Drug interactions)

  • ClorazepatebenzodiazepineModerate

    In addition, the majority of more recent case-control and cohort studies of benzodiazepine use during pregnancy, which were adjusted for confounding exposures to alcohol, tobacco and other medications, have not confirmed these findings. (Clorazepate label, Drug interactions)

  • ClozapineantipsychoticModerate

    • Discontinuation of CYP1A2 or CYP3A4 Inducers: Consider reducing CLOZARIL dose when CYP1A2 inducers (e.g., tobacco smoke) or CYP3A4 inducers (e.g., carbamazepine) are discontinued. (Clozapine label, Drug interactions)

  • Conjugated estrogensestrogenModerate

    Risk factors for arterial vascular disease (for example, hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (VTE) (for example, personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. a. (Conjugated estrogens label, Warnings)

  • Risk factors for arterial vascular disease (for example, hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or VTE (for example, personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. (Conjugated estrogens and bazedoxifene label, Warnings and precautions)

  • DiclofenacNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Diclofenac label, Warnings and precautions)

  • Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, antiplatelet drugs (such as aspirin), anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Diclofenac and misoprostol label, Warnings and precautions)

  • DiflunisalNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Diflunisal label, Warnings)

  • EletriptantriptanModerate

    Perform a cardiovascular evaluation in triptan-naïve patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving RELPAX. (Eletriptan label, Warnings and precautions)

  • EstazolambenzodiazepineModerate

    Smokers have an increased clearance of benzodiazepines as compared to nonsmokers; this was seen in studies with estazolam (see CLINICAL PHARMACOLOGY ). (Estazolam label, Drug interactions)

  • Risk factors for arterial vascular disease (e.g., hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (e.g., personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. (Esterified estrogens and methyltestosterone label, Warnings)

  • EstradiolestrogenModerate

    Risk factors for arterial vascular disease (e.g., hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (e.g., personal history or family history of VTE, obesity, and systemic lupus erythematosus) should be managed appropriately. a. (Estradiol label, Warnings)

  • Manage appropriately any risk factors for arterial vascular disease (for example, hypertension, diabetes mellitus, tobacco use, hypercholesterolemia, and obesity) and/or venous thromboembolism (VTE) (for example, personal history or family history of VTE, obesity, and systemic lupus erythematosus). (Estradiol and norethindrone label, Warnings and precautions)

  • EtodolacNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Etodolac label, Warnings)

  • FenoprofenNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Fenoprofen label, Warnings and precautions)

  • FlurbiprofenNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking, use of alcohol, older age, and poor general health status. (Flurbiprofen label, Warnings and precautions)

  • FlutamideandrogenModerate

    In patients susceptible to aniline toxicity (e.g. persons with glucose-6-phosphate dehydrogenase deficiency, hemoglobin M disease and smokers), monitoring of methemoglobin levels should be considered. (Flutamide label, Warnings)

  • FluticasonecorticosteroidModerate

    Patients with major risk factors for decreased bone mineral content, such as prolonged immobilization, family history of osteoporosis, postmenopausal status, tobacco use, advanced age, poor nutrition, or chronic use of drugs that can reduce bone mass (e.g., anticonvulsants, oral corticosteroids), should be monitored and treated with established standards of care. (Fluticasone label, Warnings and precautions)

  • FluvoxamineSSRIModerate

    Theophylline: The effect of steady-state fluvoxamine (50 mg bid) on the pharmacokinetics of a single dose of theophylline (375 mg as 442 mg aminophylline) was evaluated in 12 healthy non-smoking, male volunteers. (Fluvoxamine label, Warnings and precautions)

  • FrovatriptantriptanModerate

    Perform a cardiovascular evaluation in triptan-naïve patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving frovatriptan succinate. (Frovatriptan label, Warnings and precautions)

  • Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Hydrocodone and ibuprofen label, Warnings)

  • IbuprofenNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Ibuprofen label, Warnings and precautions)

  • Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Ibuprofen and famotidine label, Warnings and precautions)

  • IndomethacinNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Indomethacin label, Warnings and precautions)

  • In both cases, a prior history of heavy tobacco use was identified as a risk factor for lung cancer. (Insulin regular (human) label, Warnings and precautions)

  • KetoprofenNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Ketoprofen label, Warnings)

  • KetorolacNSAIDModerate

    In addition to past history of ulcer disease, other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids, or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Ketorolac label, Warnings and precautions)

  • LenalidomideModerate

    Patients with known risk factors, including prior thrombosis, may be at greater risk and actions should be taken to try to minimize all modifiable factors (e.g. hyperlipidemia, hypertension, smoking). (Lenalidomide label, Warnings and precautions)

  • MedroxyprogesteroneprogestinModerate

    MPA Injectable Suspension, USP can pose an additional risk in patients with risk factors for osteoporosis (e.g., metabolic bone disease, chronic alcohol and/or tobacco use, anorexia nervosa, strong family history of osteoporosis or chronic use of drugs that can reduce bone mass such as anticonvulsants or corticosteroids). (Medroxyprogesterone label, Warnings and precautions)

  • Mefenamic acidNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy, concomitant use of oral corticosteroids, anti-platelet drugs (such as aspirin), anticoagulants, or selective serotonin reuptake inhibitors (SSRIs), smoking, use of alcohol, older age, and poor general health status. (Mefenamic acid label, Warnings and precautions)

  • MeloxicamNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Meloxicam label, Warnings and precautions)

  • Methylergonovineergot alkaloidModerate

    Coronary artery disease Patients with coronary artery disease or risk factors for coronary artery disease (e.g., smoking, obesity, diabetes, high cholesterol) may be more susceptible to developing myocardial ischemia and infarction associated with methylergonovine-induced vasospasm. (Methylergonovine label, Warnings)

  • NabumetoneNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Nabumetone label, Warnings)

  • NaproxenNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Naproxen label, Warnings and precautions)

  • Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Naproxen and esomeprazole label, Warnings and precautions)

  • NaratriptantriptanModerate

    Perform a cardiovascular evaluation in triptan-naive patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving naratriptan tablets. (Naratriptan label, Warnings and precautions)

  • NorethindroneprogestinModerate

    WARNINGS Cigarette smoking increases the risk of serious cardiovascular disease. (Norethindrone label, Warnings)

  • OlanzapineantipsychoticModerate

    This results in a mean increase in olanzapine Cmax following fluvoxamine of 54% in female nonsmokers and 77% in male smokers. (Olanzapine label, Drug interactions)

  • Olanzapine and fluoxetineantipsychoticModerate

    This results in a mean increase in olanzapine C max following fluvoxamine administration of 54% in female nonsmokers and 77% in male smokers. (Olanzapine and fluoxetine label, Drug interactions)

  • OmalizumabModerate

    The impact of longer exposure to omalizumab products or use in patients at higher risk for malignancy (e.g., elderly, current smokers) is not known. (Omalizumab label, Warnings and precautions)

  • OxaprozinNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, antiplatelet drugs (such as aspirin), anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Oxaprozin label, Warnings and precautions)

  • Tobacco Smoking tobacco could enhance the metabolic clearance rate of pentazocine reducing the clinical effectiveness of a standard dose of pentazocine. (Pentazocine and naloxone label, Drug interactions)

  • PiroxicamNSAIDModerate

    Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, antiplatelet drugs (such as aspirin), anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. (Piroxicam label, Warnings and precautions)

  • PomalidomideModerate

    Patients with known risk factors, including prior thrombosis, may be at greater risk, and actions should be taken to try to minimize all modifiable factors (e.g., hyperlipidemia, hypertension, smoking). (Pomalidomide label, Warnings and precautions)

  • PropafenoneantiarrhythmicModerate

    Drugs that inhibit these CYP pathways (such as desipramine, paroxetine, ritonavir, sertraline for CYP2D6; ketoconazole, erythromycin, saquinavir, and grapefruit juice for CYP3A4; and amiodarone and tobacco smoke for CYP1A2) can be expected to cause increased plasma levels of propafenone. (Propafenone label, Warnings and precautions)

  • Propranololbeta blockerModerate

    CYP1A2 and CYP2C19 Inducers: CYP1A2 inducers (e.g., phenytoin, montelukast, smoking) and CYP2C19 inducers (e.g. rifampin) decrease the plasma levels of propranolol resulting in a loss of efficacy [see Clinical Pharmacology ( 12.7 )] . (Propranolol label, Drug interactions)

  • QuinineantimalarialModerate

    Cigarette Smoking (CYP1A2 Inducer) In healthy male heavy smokers, the mean quinine AUC following a single 600 mg dose was 44% lower, the mean C max was 18% lower, and the elimination half-life was shorter (7.5 hours versus 12 hours) than in their non-smoking counterparts. (Quinine label, Drug interactions)

  • Raloxifeneselective estrogen receptor modulatorModerate

    The risk-benefit balance should be considered in women at risk for stroke, such as prior stroke or transient ischemic attack (TIA), atrial fibrillation, hypertension, or cigarette smoking [see Clinical Studies ( 14.5 )] . (Raloxifene label, Warnings and precautions)

  • RiociguatvasodilatorModerate

    Pharmacokinetic Interactions with Adempas Smoking: Plasma concentrations in smokers are reduced by 50% to 60% compared to nonsmokers. (Riociguat label, Drug interactions)

  • RitlecitinibJAK inhibitorModerate

    In this study, current or past smokers had an additional increased risk of overall malignancies. (Ritlecitinib label, Warnings and precautions)

  • RizatriptantriptanModerate

    Triptan-naïve patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) should have a cardiovascular evaluation prior to receiving MAXALT. (Rizatriptan label, Warnings and precautions)

  • Ropiniroledopamine agonistModerate

    Cigarette smoking is expected to increase the clearance of ropinirole since CYP1A2 is known to be induced by smoking hormone replacement therapy [ see Clinical Pharmacology ( 12.3 ) ]. (Ropinirole label, Drug interactions)

  • RuxolitinibJAK inhibitorModerate

    Secondary Malignancies: Monitor for development of secondary malignancies, particularly in patients who are current or past smokers. (Ruxolitinib label, Warnings and precautions)

  • SalsalateNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Salsalate label, Warnings)

  • SulindacNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Sulindac label, Warnings)

  • SumatriptantriptanModerate

    Perform a cardiovascular evaluation in triptan-naive patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving IMITREX tablets. (Sumatriptan label, Warnings and precautions)

  • Perform a cardiovascular evaluation in patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving sumatriptan and naproxen sodium tablets. (Sumatriptan and naproxen label, Warnings and precautions)

  • TheophyllinemethylxanthineModerate

    Cessation of Smoking: Drug Interactions: Adding a drug that inhibits theophylline metabolism (e.g., cimetidine, erythromycin, tacrine) or stopping a concurrently administered drug that enhances theophylline metabolism (e.g., carbamazepine, rifampin). (Theophylline label, Warnings)

  • TolmetinNSAIDModerate

    Other factors that increase the risk for GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status. (Tolmetin label, Warnings)

  • WarfarinanticoagulantModerate

    …contraceptives, phenylpropanolamine, propafenone, propranolol, terbinafine, thiabendazole, ticlopidine, verapamil, zileuton montelukast, moricizine, omeprazole, phenobarbital, phenytoin, cigarette smoking CYP3A4 alprazolam, amiodarone, amlodipine, amprenavir, aprepitant, atorvastatin, atazanavir, bicalutamide, cilostazol, cimetidine, ciprofloxacin, clarithromycin, conivaptan,… (Warfarin label, Drug interactions)

  • ZolmitriptantriptanModerate

    Perform a cardiovascular evaluation in triptan-naïve patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving zolmitriptan. (Zolmitriptan label, Warnings and precautions)

Minor mentions (9)

  • Tobacco and other medications, have not confirmed these findings. (Chlordiazepoxide and clidinium label, Drug interactions)

  • Dextromethorphanserotonergic drugMinor

    Ask a doctor before use if you have chronic cough that lasts such as occurs with smoking, asthma, or emphysema cough that occurs with too much phlegm (mucus) Stop use and ask a doctor if cough lasts more than 7 days, comes back, or occurs with fever, rash, or headache that lasts. (Dextromethorphan label, Warnings)

  • Dihydroergotamineergot alkaloidMinor

    Nicotine Nicotine may provoke vasoconstriction in some patients, predisposing to a greater ischemic response to ergot therapy. (Dihydroergotamine label, Drug interactions)

  • Ergotamine and caffeineergot alkaloidMinor

    Nicotine may provoke vasoconstriction in some patients, predisposing to a greater ischemic response to ergot therapy. (Ergotamine and caffeine label, Drug interactions)

  • HeparinanticoagulantMinor

    Other Interactions Digitalis, tetracyclines, nicotine, or antihistamines, or intravenous nitroglycerin may partially counteract the anticoagulant action of heparin sodium. (Heparin label, Drug interactions)

  • InfliximabimmunosuppressantMinor

    All patients had a history of heavy smoking [see Adverse Reactions (6.1) ] . (Infliximab label, Warnings and precautions)

  • Naltrexone and bupropionopioid antagonistMinor

    Some patients who stopped smoking may have been experiencing symptoms of nicotine withdrawal, including depressed mood. (Naltrexone and bupropion label, Warnings and precautions)

  • QuinidineantiarrhythmicMinor

    Quinidine's pharmacokinetics are also unaffected by cigarette smoking. (Quinidine label, Drug interactions)

  • Tranexamic acidantifibrinolyticMinor

    This is of particular concern in women who are obese or smoke cigarettes, especially smokers over 35 years of age. (Tranexamic acid label, Warnings and precautions)

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