List of cytochrome P450 modulatorsThis is a list of cytochrome P450 modulators, or inhibitors and inducers of cytochrome P450 enzymes.EnzymeInhibitorsInducersCYP1A1 Certain foods Certain herbs/herbal teas Amiodarone Caffeine Cimetidine Citalopram CrisaboroleEchinacea Efavirenz Fluoroquinolones Fluvoxamine Interferon Isoniazid Methoxsalen Mibefradil Naringenin Nilutamide Ribociclib Rucaparib Simeprevir St. John's wort Ticlopidine Verapamil Certain foods Armodafinil Insulin Methylcholanthrene Modafinil Nafcillin Omeprazole Phenytoin beta-Naphthoflavone TobaccoCYP2A6 Amiodarone Amlodipine Buprenorphine Clofibrate Clotrimazole Desipramine Disulfiram Entacapone Fenofibrate Flavonoids Gabapentin Isoniazid Ketoconazole Letrozole Methimazole Methoxsalen Metyrapone Miconazole Modafinil Nicotine Orphenadrine Pilocarpine Pregabalin Selegiline Sulconazole Tioconazole Tranylcypromine Barbiturates RifampicinCYP2B6 Clopidogrel Crisaborole Curcumin Memantine Orphenadrine Rucaparib Thiotepa Ticlopidine Voriconazole Withania somnifera Carbamazepine Phenobarbital Phenytoin RifampicinCYP2C8 Gemfibrozil Letermovir Montelukast Perampanel Quercetin Teriflunomide Thiazolidinediones Trimethoprim Rifampicin RifapentineCYP2C9 Amiodarone Apigenin Chloramphenicol Cimetidine Cyclizine Fenofibrate Flavonoids Fluconazole Fluvastatin Fluvoxamine Isoniazid Kava Lovastatin Miconazole Modafinil Nilutamide Paroxetine Phenylbutazone Probenecid Promethazine Quercetin Sertraline Sulfamethoxazole Sulfaphenazole Teniposide Valproic acid Voriconazole Zafirlukast Aprepitant Bosentan Carbamazepine Enzalutamide Phenobarbital Phenytoin Rifampicin Rifapentine Secobarbital St. John's WortCYP2C19 Armodafinil Cannabidiol Chloramphenicol Cimetidine Citalopram Felbamate Fluconazole Fluoxetine Fluvoxamine Indomethacin Isoniazid JWH-018 Kava Ketoconazole Moclobemide Modafinil Oxcarbazepine Probenecid Proton pump inhibitors Ticlopidine Topiramate Artemisinin Aspirin Carbamazepine Enzalutamide Norethisterone Phenytoin Prednisone RifampicinCYP2D6 Amiodarone Buprenorphine Bupropion Cannabidiol Celecoxib Chlorphenamine Chlorpromazine Cimetidine Cinacalcet Citalopram Clemastine Clomipramine Cocaine Diphenhydramine Doxepin Doxorubicin Duloxetine Escitalopram Fluoxetine Halofantrine Haloperidol Hydroxyzine Hyperforin Kava Levomepromazine Methadone Methylphenidate Metoclopramide Mibefradil Midodrine Moclobemide Niacin and its form – niacinamide, collectively called as vitamin B3 Omeprazole Paroxetine Perphenazine Promethazine Quinidine Ranitidine Risperidone Ritonavir Sertraline Terbinafine Thioridazine Ticlopidine Tripelennamine Zuclopenthixol Dexamethasone Glutethimide Haloperidol RifampicinCYP2E1 Cimetidine Niacin and its form – niacinamide, collectively called as vitamin B3 Clomethiazole Ethanol IsoniazidCYP3A4 Amiodarone Aprepitant Bergamottin Buprenorphine Cafestol Cannabidiol Chloramphenicol Cimetidine Ciprofloxacin Clarithromycin Cobicistat Colchicine Delavirdine Diltiazem Dithiocarbamate Domperidone Erythromycin Esomeprazole Fluconazole Fluvoxamine Gestodene Ginkgo biloba Imatinib Indinavir Isoniazid Itraconazole Kava Ketoconazole Mibefradil Mifepristone Milk thistle Nefazodone Nelfinavir Niacin and its form – niacinamide, collectively called as vitamin B3 Nilutamide Norfloxacin Omeprazole Orphenadrine Pantoprazole Piperine Quercetin Ranitidine Ritonavir Saquinavir Seproxetine Star fruit Telithromycin Valerian Valproic acid Verapamil Voriconazole Armodafinil Barbiturates Capsaicin Carbamazepine Efavirenz Enzalutamide Glucocorticoids Modafinil Nevirapine Oxcarbazepine Phenytoin Pioglitazone Quercetin Rifabutin Rifampicin Rifapentine St. John's wort Topiramate Troglitazone Withania somnifera CYP4–51 See Prostanoid signaling modulators and Leukotriene signaling modulators instead for eicosanoid-specific CYP450s, including:* CYP4F3 * CYP5A1 * CYP8A1 See the list of steroid metabolism modulators instead for steroid/sterol-specific CYP450s, including:* CYP7A1 * CYP7B1 * CYP8B1 * CYP11A1 * CYP11B1 * CYP11B2 * CYP17A1 * CYP19A1 * CYP21A2 * CYP24A1 * CYP27A1 * CYP27B1 * CYP39A1 * CYP46A1 * CYP51A1