MetronidazoleAntitrichomonal AgentsMedication ErrorsMedication AdherenceNitroreductasesHelicobacter pyloriAmoxicillinAnti-Bacterial AgentsClarithromycinBismuthHelicobacter InfectionsNitroimidazolesTrichomonas vaginalisBacteria, AnaerobicTinidazoleAnti-Infective AgentsTrichomonas VaginitisBacteroides fragilisAnti-Ulcer AgentsOmeprazoleClindamycinDrug Therapy, CombinationBacteroides InfectionsEnterocolitis, PseudomembranousVaginosis, BacterialMicrobial Sensitivity TestsOrnidazoleTetracyclineClostridium difficileMedication ReconciliationMedication SystemsMedication Systems, HospitalAntiprotozoal AgentsTritrichomonasNimorazoleDrug Resistance, MicrobialFurazolidoneAmebicidesNitrofuransRosaceaBacteroidesGardnerella vaginalisDrug Resistance, BacterialRanitidineTreatment OutcomeGiardia lambliaPatient CompliancePyruvate SynthaseSuppositoriesTrichomonasBacteria, AerobicAdministration, OralGiardiasisPrescription DrugsPeptostreptococcusSelf MedicationDuodenal UlcerNiridazoleDrug PrescriptionsPolypharmacyEntamoeba histolytica2-PyridinylmethylsulfinylbenzimidazolesPeptic UlcerAntacidsPremedicationPenicillinsOrganometallic CompoundsDrug TherapyProspective StudiesAnaerobiosisNifuratelPsychotropic DrugsDouble-Blind MethodTrichomonas InfectionsDrug ResistanceDrug UtilizationBlastocystis hominisCefoxitinDyspepsiaBacterial InfectionsVancomycinRibotypingLiver Abscess, AmebicLansoprazoleAntipsychotic AgentsBulgariaIodoquinolNonprescription DrugsFusobacteriumAdministration, IntravaginalProton Pump InhibitorsFusobacterium InfectionsDrug CombinationsSulfoxides