MetronidazoleChlorobenzenesBenzyl AlcoholsAntitrichomonal AgentsNasal SpraysAndrostadienesAnti-Allergic AgentsAstheniaNitroreductasesMetered Dose InhalersHelicobacter pyloriAmoxicillinAnti-Bacterial AgentsClarithromycinAdministration, InhalationBismuthNitroimidazolesHelicobacter InfectionsTrichomonas vaginalisBacteria, AnaerobicTinidazoleAnti-Inflammatory AgentsAnti-Infective AgentsTrichomonas VaginitisBacteroides fragilisCupressusPowdersAnti-Ulcer AgentsGlucocorticoidsClindamycinBacteroides InfectionsOmeprazoleEnterocolitis, PseudomembranousVaginosis, BacterialOrnidazoleMicrobial Sensitivity TestsTetracyclineClostridium difficileBronchodilator AgentsAnti-Asthmatic AgentsAntiprotozoal AgentsDrug Therapy, CombinationTritrichomonasNimorazoleDouble-Blind MethodDrug Resistance, MicrobialDrug CombinationsAmebicidesNitrofuransFurazolidoneAdministration, IntranasalRosaceaTreatment OutcomeBacteroidesGardnerella vaginalisRhinitis, Allergic, SeasonalDrug Resistance, BacterialBeclomethasoneRanitidineGiardia lambliaAsthmaDrug Administration SchedulePyruvate SynthaseSuppositoriesTrichomonasBacteria, AerobicChemistry, PharmaceuticalGiardiasisPeptostreptococcusHydrocortisoneReceptors, GlucocorticoidDuodenal UlcerNiridazoleEntamoeba histolyticaPenicillinsForced Expiratory VolumePeptic UlcerOrganometallic Compounds2-PyridinylmethylsulfinylbenzimidazolesAnaerobiosisNifuratelCross-Over StudiesPremedicationTrichomonas InfectionsAdministration, OralBlastocystis hominisCefoxitinAntacidsBacterial InfectionsRibotypingVancomycinDrug ResistanceLiver Abscess, AmebicBulgariaIodoquinolDyspepsiaPulmonary Disease, Chronic ObstructiveLansoprazoleFusobacteriumAdministration, Intravaginal