Avoid concomitant use w/ strong CYP3A4 inhibitors eg, ketoconazole, indinavir, nelfinavir, ritonavir, saquinavir, clarithromycin, telithromycin, itraconazole, nefazodone & cobicistat; strong CYP3A inducers eg, carbamazepine, rifampin, phenytoin & St. John's wort. Increased exposure w/ moderate CYP3A inhibitors eg, fluconazole, erythromycin, amprenavir, aprepitant, atazanavir, ciprofloxacin, crizotinib, diltiazem, fosamprenavir, imatinib, verapamil, amiodarone & dronedarone; grapefruit & Seville oranges. Potential interaction w/ P-gp or BCRP substrates eg, digoxin or MTX. May inhibit BCRP systemically & increase exposure of drugs that undergo BCRP-mediated hepatic efflux eg, rosuvastatin.