Clavulanic AcidAmoxicillinAmoxicillin-Potassium Clavulanate CombinationBacterial InfectionsClavulanic AcidsAnti-Bacterial AgentsMethemoglobinemiaPotassiumPenicillinsMethylene BlueMicrobial Sensitivity Testsbeta-Lactamasesbeta-LactamsClarithromycinDrug Therapy, CombinationPotassium ChannelsMetronidazolePenicillanic AcidOtitis MediaAmpicillinSulbactamToxicity TestsHelicobacter pyloriDrug Resistance, BacterialStreptococcus pneumoniaeHelicobacter InfectionsPenicillin ResistanceOmeprazoleHaemophilus influenzaeSister Chromatid Exchange2-PyridinylmethylsulfinylbenzimidazolesIntestinal Neoplasmsbeta-Lactam ResistanceAdministration, OralCefuroximeTicarcillinAzithromycinCephalosporinsAnti-Infective AgentsLactamsAnti-Ulcer AgentsRespiratory Tract InfectionsCefotaximeLansoprazoleFurazolidoneBacteria, AnaerobicHaemophilus InfectionsCommunity-Acquired InfectionsPiperacillinPneumonia, BacterialRabeprazoleDrug Resistance, MicrobialDrug Resistance, Multiple, BacterialMoraxella (Branhamella) catarrhalisPotassium Channel BlockersPotassium Channels, Inwardly RectifyingUrinary Tract InfectionsThienamycinsEnterobacteriaceaePotassium, DietaryPneumonia, PneumococcalAcute DiseaseBacteriaPneumococcal InfectionsMutagensPotassium DeficiencyBismuthGram-Negative BacteriaEnterobacteriaceae InfectionsCefaclorPotassium Channels, Voltage-GatedBronchitis, ChronicPotassium CompoundsDrug CombinationsTreatment OutcomeGram-Negative Bacterial InfectionsProton Pump InhibitorsLevofloxacinActinomycetaceaeRats, Inbred F344TetracyclineTonsillitisCricetulusAnemiaDouble-Blind MethodOtitis Media with EffusionKlebsiella pneumoniaeMice, Inbred StrainsGram-Positive Bacterial InfectionsOfloxacinColony Count, MicrobialEscherichia coliPotassium IsotopesCephalosporinaseEscherichia coli InfectionsPenicillin VIntestine, Small