CYP 3A4 enzymes are affected by:
carbamezepine is metabolised by cyp3a4 enzyme inducers will enhance the metabolism of other drugs eg for enzyme inducers- phenytoin, phenobarbitone, carbamazepine, chronic alcoholism, smoking, st johns wa Pg.no 23 KD TRIPATHI Seventh edition
Fexofenadine
Phenytoin
Carbamazapine
Azithromycin
General pharmacology