Decreased AUC & C
max w/ etravirine (w/o boosted PIs), darunavir/ritonavir + etravirine, efavirenz, nevirapine, tipranavir/ritonavir, fosamprenavir/ritonavir, darunavir/ritonavir, carbamazepine, oxcarbazepine, phenytoin, phenobarb, St. John's wort, Mg- & Al-containing antacid, Ca, Fe supplements, multivit, rifampicin. Increased AUC & C
max w/ atazanavir, atazanavir/ritonavir, telaprevir. Increased dofetilide, metformin conc.