<prompt> Which of the following inhibits CYP-P450grape fruitEthanolRifampicinProcainamide  <response>: enzyme inhibitors- cimetidine, chloramphenicol, ciprofloxacin, ketoconazole, protease inhibitors like ritonavir, indinavir, saquinavir, and grape fruit juice etc Ref KD Tripathi 8th ed 