Concomitant use with cytochrome P450 3A4 inhibitors, transporter inhibitors (cyclosporine), erythromycin/clarithromycin, protease inhibitors, diltiazem hydrochloride, itraconazole, cytochrome P450 3A4 inducers, antacids, colestipol, digoxin, azythromycin, oral contraceptives containing norethindrone and ethinyl estradiol, colchicine, amlodipine, fusidic acid.