| CYP1A2 | Amiodarone (Cordarone), cimetidine (Tagamet), ciprofloxacin (Cipro), fluvoxamine (Luvox‡) | Carbamazepine (Tegretol), phenobarbital, rifampin (Rifadin), tobacco | Caffeine, clozapine (Clozaril), theophylline |
| CYP2C9 | Amiodarone, fluconazole (Diflucan), fluoxetine (Prozac), metronidazole (Flagyl), ritonavir (Norvir), trimethoprim/sulfamethoxazole (Bactrim, Septra) | Carbamazepine, phenobarbital, phenytoin (Dilantin), rifampin | Carvedilol (Coreg), celecoxib (Celebrex), glipizide (Glucotrol), ibuprofen (Motrin), irbesartan (Avapro), losartan (Cozaar) |
| CYP2C19 | Fluvoxamine, isoniazid (INH), ritonavir | Carbamazepine, phenytoin, rifampin | Omeprazole (Prilosec), phenobarbital, phenytoin |
| CYP2D6 | Amiodarone, cimetidine, diphenhydramine (Benadryl), fluoxetine, paroxetine (Paxil), quinidine, ritonavir, terbinafine (Lamisil) | No significant inducers | Amitriptyline, carvedilol, codeine, donepezil (Aricept), haloperidol (Haldol), metoprolol (Lopressor), paroxetine, risperidone (Risperdal), tramadol (Ultram) |
| CYP3A4 and CYP3A5 | Clarithromycin (Biaxin), diltiazem (Cardizem), erythromycin, grapefruit juice, itraconazole (Sporanox), ketoconazole (Nizoral), nefazodone (Serzone‡), ritonavir, telithromycin (Ketek), verapamil (Calan) | Carbamazepine,Hypericum perforatum (St. John's wort), phenobarbital, phenytoin, rifampin | Alprazolam (Xanax), amlodipine (Norvasc), atorvastatin (Lipitor), cyclosporine (Sandimmune), diazepam (Valium), estradiol (Estrace), simvastatin (Zocor), sildenafil (Viagra), verapamil, zolpidem (Ambien) |