OCPs
Substrate
Omeprazole
Inhibitor (-)
Fluconazole
Inhibitor (-)
Anti-epileptics
Substrate
Theophylline
Substrate
Griseofulvin
Inducer (+)
Isoniazid (INH)
Inhibitor (-)
Phenytoin
Inducer (+)
Acute alcohol abuse
Inhibitor (-)
Cimetidine
Inhibitor (-)
Nevirapine
Inducer (+)
Metronidazole
Inhibitor (-)
St. John’s wort
Inducer (+)
Macrolides (except azithromycin)
Inhibitor (-)
Rifampin
Inducer (+)
Phenobarbital
Inducer (+)
Ciprofloxacin
Inhibitor (-)
Chronic alcohol use
Inducer (+)
Ketoconazole
Inhibitor (-)
Chloramphenicol
Inhibitor (-)
Carbamazepine
Inducer (+)
Valproate
Inhibitor (-)
Sulfonamides
Inhibitor (-)
Warfarin
Substrate