- At least 7 days since prior and no concurrent CYP3A4 inhibitors, including azole antifungals (ketoconazole and itraconazole), clarithromycin, erythromycin, diltiazem, verapamil, HIV protease inhibitors (indinavir, saquinavir, ritonavir, atazanavir, nelfinavir), and delavirdine