RanitidineOmeprazoleHistamine H2 AntagonistsAnti-Ulcer AgentsCimetidineBismuthFamotidineGastric AcidGastric Acidity DeterminationProton Pump Inhibitors2-PyridinylmethylsulfinylbenzimidazolesStomach UlcerMagnesium HydroxideFuransLansoprazoleSucralfateDuodenal UlcerAntacidsEsophagitis, PepticHeartburnAmoxicillinHelicobacter pyloriClarithromycinHelicobacter InfectionsMetronidazoleDouble-Blind MethodRabeprazoleSulfoxidesAluminum HydroxideGastroesophageal RefluxPeptic UlcerDrug InteractionsGastric MucosaDrug Therapy, CombinationBenzimidazolesPeptic Ulcer HemorrhageGastrinsCross-Over StudiesGastric JuiceReceptors, Histamine H2EsophagitisHydrogen-Ion ConcentrationDyspepsiaStomachHistamine AntagonistsHistamineFurazolidoneEnprostilPenicillinsAnti-Bacterial AgentsTinidazoleBreath TestsBiological AvailabilityAdministration, OralDose-Response Relationship, DrugPentagastrinOrganometallic CompoundsAryl Hydrocarbon HydroxylasesArea Under CurveNizatidineEsophagusDrug Administration SchedulePyrilamineHistamine AgonistsHalf-LifeAntitrichomonal AgentsMixed Function OxygenasesReceptors, HistamineTetracyclineTreatment OutcomeEnzyme InhibitorsAnti-Inflammatory Agents, Non-Steroidal