Heterocyclic Compounds, Bridged-RingHalf-LifeHIV InfectionsArea Under CurvePharmacokineticsMetabolic Clearance RateBiological AvailabilityAdministration, OralHIV SeropositivityInjections, IntravenousDrug InteractionsChromatography, High Pressure LiquidInfusions, IntravenousTissue DistributionCross-Over StudiesDose-Response Relationship, DrugAnti-HIV AgentsFood-Drug InteractionsHIV SeroprevalenceDrug Administration ScheduleHIV SeronegativityHIV Protease InhibitorsStereoisomerismHIV-1