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