Clavulanic AcidAmoxicillinAnti-Bacterial AgentsAmoxicillin-Potassium Clavulanate CombinationDrug Therapy, CombinationMicrobial Sensitivity TestsPenicillinsClavulanic AcidsMethemoglobinemiabeta-LactamsPotassiumAmpicillinTobramycinSulbactamDrug SynergismTicarcillinPseudomonas aeruginosaMethylene BluePiperacillinGentamicinsDrug Resistance, Multiple, BacterialDrug Resistance, MicrobialAzlocillinAminoglycosidesbeta-LactamasesAmikacinRifampinPseudomonas InfectionsCiprofloxacinAnti-Infective AgentsClarithromycinColistinDrug Resistance, BacterialMetronidazolePotassium ChannelsDrug CombinationsPenicillanic AcidOtitis MediaToxicity TestsPenicillin ResistanceHelicobacter pyloriStreptococcus pneumoniaeHelicobacter InfectionsAntibiotic ProphylaxisOmeprazolebeta-Lactam ResistanceCefuroximeCephalosporins2-PyridinylmethylsulfinylbenzimidazolesHaemophilus influenzaeSister Chromatid ExchangeLactamsAzithromycinIntestinal NeoplasmsAdministration, OralBacterial InfectionsCefotaximeAnti-Ulcer AgentsLansoprazoleFurazolidoneCommunity-Acquired InfectionsBacteria, AnaerobicTetracyclineEnterobacteriaceaeThienamycinsRabeprazoleBacteriaPotassium Channel BlockersMoraxella (Branhamella) catarrhalisRespiratory Tract InfectionsUrinary Tract InfectionsPotassium Channels, Inwardly RectifyingGram-Negative BacteriaCefaclorPotassium, DietaryBismuthAcute DiseaseMutagensHaemophilus InfectionsPotassium DeficiencyTreatment OutcomeEscherichia coliBronchitis, ChronicPenicillin VPotassium Channels, Voltage-GatedPotassium CompoundsPneumonia, BacterialActinomycetaceaePenicillin GPneumonia, PneumococcalPneumococcal InfectionsLevofloxacinProton Pump InhibitorsEnterobacteriaceae InfectionsRats, Inbred F344TonsillitisCephalosporinaseOfloxacinCricetulusDouble-Blind Method