NelfinavirHIV Protease InhibitorsSaquinavirOxazinesRitonavirIndinavirBenzoxazinesStavudineAnti-HIV AgentsPyrimidinonesHIV InfectionsReverse Transcriptase InhibitorsLopinavirHIV ProteaseHIV-1CarbamatesDibenzocycloheptenesAspartic Acid ProteasesDrug InteractionsArea Under CurveLamivudineDrug Resistance, ViralDrug Therapy, CombinationCytochrome P-450 CYP3A