Clavulanic AcidAmoxicillinAmoxicillin-Potassium Clavulanate CombinationClavulanic AcidsMethemoglobinemiaAnti-Bacterial AgentsPotassiumBacteriaPenicillinsMethylene BlueMicrobial Sensitivity Testsbeta-Lactamasesbeta-LactamsClarithromycinPotassium ChannelsDrug Therapy, CombinationMetronidazolePenicillanic AcidBacteria, AnaerobicGram-Negative BacteriaSulbactamAmpicillinOtitis MediaToxicity TestsHelicobacter pyloriDrug Resistance, BacterialStreptococcus pneumoniaePenicillin ResistanceHelicobacter InfectionsOmeprazoleSister Chromatid Exchange2-PyridinylmethylsulfinylbenzimidazolesIntestinal NeoplasmsHaemophilus influenzaebeta-Lactam ResistanceGram-Positive BacteriaAdministration, OralCefuroximeAzithromycinLactamsTicarcillinCephalosporinsAnti-Ulcer AgentsBacteria, AerobicAnti-Infective AgentsEnterobacteriaceaeLansoprazoleCefotaximeFurazolidoneBacterial InfectionsDrug Resistance, MicrobialEscherichia coliBacterial ProteinsDNA, BacterialRespiratory Tract InfectionsRabeprazoleDrug Resistance, Multiple, BacterialPiperacillinPotassium Channel BlockersPotassium Channels, Inwardly RectifyingMoraxella (Branhamella) catarrhalisCommunity-Acquired InfectionsPotassium, DietaryMutagensBismuthColony Count, MicrobialHaemophilus InfectionsPotassium DeficiencyThienamycinsCefaclorPotassium Channels, Voltage-GatedActinomycetaceaePotassium CompoundsBronchitis, ChronicMolecular Sequence DataUrinary Tract InfectionsTetracyclinePneumonia, PneumococcalProton Pump InhibitorsDrug CombinationsRats, Inbred F344Acute DiseaseCricetulusPneumococcal InfectionsPneumonia, BacterialLevofloxacinAnemiaEnterobacteriaceae InfectionsTreatment OutcomeIntestine, SmallCephalosporinaseDouble-Blind MethodRNA, Ribosomal, 16SOtitis Media with EffusionTonsillitisPotassium IsotopesPenicillin VAza CompoundsKlebsiella pneumoniaeMice, Inbred Strains