RanitidineHistamine H2 AntagonistsDuodenal UlcerStomach UlcerCimetidineAnti-Ulcer AgentsBismuthPeptic UlcerFamotidineLeg UlcerPressure UlcerSkin UlcerOmeprazoleGastric AcidFuransPeptic Ulcer HemorrhageMagnesium HydroxideGastric Acidity DeterminationSucralfateAntacidsPeptic Ulcer PerforationHeartburnHelicobacter pyloriAluminum HydroxideHelicobacter InfectionsBuruli UlcerGastric JuiceReceptors, Histamine H2ClarithromycinDouble-Blind MethodMetronidazole2-PyridinylmethylsulfinylbenzimidazolesEnprostilAmoxicillinHistamine AntagonistsProton Pump InhibitorsEsophagitis, PepticLansoprazoleHistamineGastrinsDrug Therapy, CombinationNizatidineStomachDrug InteractionsPyrilamineHistamine AgonistsTinidazoleReceptors, HistamineGastric MucosaDyspepsia