AcyclovirValineAntiviral AgentsProdrugs2-AminopurineHerpes GenitalisHerpesvirus 2, HumanCefadroxilVestibular NeuronitisHerpes LabialisHerpes SimplexVirus SheddingCaloric TestsAdministration, OralLeukoplakia, HairyVirus ActivationHerpes ZosterTherapeutic EquivalencyCytomegalovirus InfectionsStandard of CareDouble-Blind MethodCoinfectionBell PalsyImmunocompromised HostSuspensionsMeningitis, ViralDipeptidesCytomegalovirusGenitaliaGanciclovirImmunocompetenceConsumer Product SafetyHerpesvirus 1, HumanHerpesviridae InfectionsOpportunistic InfectionsPostpartum PeriodRecurrenceSymportersViral LoadHIV InfectionsTearsKenyaSimplexvirusTreatment OutcomeHIV-1NevirapineBiological AvailabilityCross-Over StudiesDrug-Related Side Effects and Adverse ReactionsZidovudineSerologic TestsIntestinesPregnancy Complications, InfectiousHealth ResourcesDrug Administration ScheduleKidney TransplantationDNA, ViralArea Under CurveCadaverDrug Therapy, CombinationHerpesvirus 4, HumanIntestinal AbsorptionGraft RejectionTransplantation, HomologousRNA, ViralDose-Response Relationship, DrugTime FactorsBone Marrow TransplantationPostoperative ComplicationsPregnancyProspective StudiesChromatography, High Pressure LiquidAnalysis of Variance