NelfinavirHIV Protease InhibitorsSaquinavirOxazinesRitonavirIndinavirBenzoxazinesStavudineAnti-HIV AgentsHIV InfectionsPyrimidinonesReverse Transcriptase InhibitorsLopinavirHIV ProteaseHIV-1CarbamatesDrug InteractionsDibenzocycloheptenesAspartic Acid ProteasesArea Under CurveLamivudineDrug Resistance, ViralDrug Therapy, CombinationCytochrome P-450 CYP3A