Barbiturates Rifampin

Phenytoin interacts widi many different drugp. For example isoniazid, chloramphenicol, sulfonamides, benzodiazepines, succinimides, and cimetidine all increase phenytoin blood levels. The barbiturates, rifampin, theophylline, and warfarin decrease phenytoin blood levels. When administering the hydantoins with meperidine, die analgesic effect of meperidine is decreased. [Pg.258]

Drugs that may affect estrogens include barbiturates, rifampin, hydantoins, topiramate, and CYP 3A4 inducers and inhibitors. [Pg.181]

Drugs that may affect chloramphenicol include barbiturates, rifampin, and hydantoins. Drugs that may be affected by chloramphenicol include barbiturates, anticoagulants, cyclophosphamide, hydantoins, iron salts, penicillins, sulfonylureas, and vitamin B- 2-... [Pg.1548]

C9 Celecoxib, flurbiprofen, hexobarbital, ibuprofen, losartan, phenytoin, tolbutamide, trimethadione, sulfaphenazole, S-warfarin, ticrynafen Barbiturates, rifampin Tienilic acid, sulfaphenazole... [Pg.82]

C19 Diazepam, S-mephenytoin, naproxen, nirvanol, omeprazole, propranolol Barbiturates, rifampin /3-benzylnirvanol, N3- benzylphenobarbital, fluconazole... [Pg.82]

Substrates Inhibitors Inducers CYP2C9 Most NSAIDs (including COX-2), warfarin, phenytoin Fluconazole Barbiturates, rifampin... [Pg.355]

CYP2C9 Warfarin Tobutamide Barbiturates Rifampin Sulfaphenazole (Yes)" Tobutamide... [Pg.247]

CYP2C19 Mephenytoin Omeprazole Barbiturates Rifampin Yes (S)-Mephenytoin... [Pg.247]

CYP2D6 Metopronolol Imipramine Encainide Barbiturates Rifampin in EMs only Quinidine Yes Dextromethorphan Debrosoquine... [Pg.247]

CYP3A5 Cyclosporine Barbiturates Rifampin Ketoconazole Erythromycin Yes Erythromycin... [Pg.247]

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