MetronidazoleAntitrichomonal AgentsNitroreductasesHelicobacter pyloriAmoxicillinAnti-Bacterial AgentsClarithromycinBismuthNitroimidazolesHelicobacter InfectionsTrichomonas vaginalisBacteria, AnaerobicTinidazoleAnti-Infective AgentsTrichomonas VaginitisBacteroides fragilisAnti-Ulcer AgentsClindamycinBacteroides InfectionsOmeprazoleEnterocolitis, PseudomembranousVaginosis, BacterialOrnidazoleMicrobial Sensitivity TestsTetracyclineClostridium difficileAntiprotozoal AgentsDrug Therapy, CombinationTritrichomonasNimorazoleDrug Resistance, MicrobialAmebicidesNitrofuransFurazolidoneRosaceaBacteroidesGardnerella vaginalisDrug Resistance, BacterialRanitidineGiardia lambliaPyruvate SynthaseSuppositoriesTrichomonasBacteria, AerobicGiardiasisPeptostreptococcusDuodenal UlcerNiridazoleEntamoeba histolyticaPenicillinsPeptic UlcerOrganometallic Compounds2-PyridinylmethylsulfinylbenzimidazolesAnaerobiosisNifuratelPremedicationTrichomonas InfectionsAdministration, OralBlastocystis hominisCefoxitinAntacidsBacterial InfectionsRibotypingVancomycinDrug ResistanceLiver Abscess, AmebicBulgariaIodoquinolDyspepsiaLansoprazoleFusobacteriumAdministration, IntravaginalFusobacterium Infections