Clavulanic AcidAmoxicillinAmoxicillin-Potassium Clavulanate CombinationClavulanic AcidsMethemoglobinemiaPotassiumAnti-Bacterial AgentsPenicillinsMethylene BlueMicrobial Sensitivity Testsbeta-Lactamasesbeta-LactamsClarithromycinPotassium ChannelsDrug Therapy, CombinationMetronidazolePenicillanic AcidSulbactamOtitis MediaToxicity TestsAmpicillinHelicobacter pyloriDrug Resistance, BacterialPenicillin ResistanceStreptococcus pneumoniaeHelicobacter InfectionsOmeprazoleSister Chromatid Exchange2-PyridinylmethylsulfinylbenzimidazolesIntestinal Neoplasmsbeta-Lactam ResistanceHaemophilus influenzaeCefuroximeAdministration, OralAzithromycinTicarcillinLactamsAnti-Ulcer AgentsCephalosporinsLansoprazoleFurazolidoneCefotaximeAnti-Infective AgentsRabeprazoleBacteria, AnaerobicPotassium Channel BlockersRespiratory Tract InfectionsPotassium Channels, Inwardly RectifyingPiperacillinCommunity-Acquired InfectionsPotassium, DietaryDrug Resistance, MicrobialMoraxella (Branhamella) catarrhalisMutagensDrug Resistance, Multiple, BacterialPotassium DeficiencyBismuthEnterobacteriaceaeCefaclorPotassium Channels, Voltage-GatedThienamycinsHaemophilus InfectionsBacterial InfectionsBronchitis, ChronicPotassium CompoundsProton Pump InhibitorsActinomycetaceaeRats, Inbred F344Drug CombinationsPneumonia, PneumococcalUrinary Tract InfectionsAcute DiseaseCricetulusAnemiaTetracyclinePneumococcal InfectionsLevofloxacinTreatment OutcomeDouble-Blind MethodPotassium IsotopesCephalosporinaseOtitis Media with EffusionPneumonia, BacterialPenicillin VTonsillitisIntestine, SmallEnterobacteriaceae Infections