Decreased effects w/ anticonvulsants eg, carbamazepine, oxcarbazepine, phenobarb, phenytoin; antimycobacterials eg, rifampicin, rifapentine & rifabutin; tipranavir/ritonavir; St. John's wort (
Hypericum perforatum). Increased effects w/ itraconazole & ketoconazole. Increased AUC & C
max w/ PIs eg, atazanavir/cobicistat, atazanavir/ritonavir, darunavir/cobicistat, darunavir/ritonavir, lopinavir/ritonavir.