CimetidineAdverse Drug Reaction Reporting SystemsDrug-Related Side Effects and Adverse ReactionsHistamine H2 AntagonistsPharmacovigilanceDrug EruptionsProduct Surveillance, PostmarketingDrug HypersensitivityGuanidinesStevens-Johnson SyndromeRanitidineExanthemaFamotidineDuodenal UlcerReceptors, Histamine H2Drug InteractionsDimapritHistaminePolypharmacyGastric AcidPharmacogeneticsReceptors, HistamineDermatitis, ExfoliativeUrticariaPyrilamineAnti-Ulcer AgentsDrug MonitoringDrug PrescriptionsMagnesium HydroxideStomach UlcerDrug TherapyPharmaceutical PreparationsHistamine H1 AntagonistsPharmacoepidemiologyDrug-Induced Liver InjuryChild, HospitalizedOxyphenisatin AcetateDiphenhydramineHistamine AntagonistsErythema MultiformeSkin DiseasesAntacidsTertiary Care CentersDrug LabelingReceptors, Histamine H1Pharmacology, ClinicalOrganic Cation Transport ProteinsDapsoneMedication ErrorsHistamine AgonistsAnti-Inflammatory Agents, Non-SteroidalImpromidineAluminum HydroxideGastric Acidity DeterminationClinical Trials as TopicGastric JuiceAnticonvulsantsAdministration, OralPharmacistsDatabases, FactualProspective StudiesChlorpheniramineHospitals, TeachingGalactorrheaDouble-Blind MethodSulfamethoxazoleHospitals, PediatricInpatientsMetiamidePentagastrinPhotosensitivity DisordersFurans