Macrolide antibiotics (clarithromycin, erythromycin), azole antifungals (itraconazole, ketoconazole), HIV/HCV protease inhibitors, cyclosporine, gemfibrozil/fibrates, niacin, colchicine, diltiazem/verapamil, amiodarone, warfarin (monitor INR), digoxin, grapefruit juice (increases levels)