HistamineReceptors, Histamine H1Histamine ReleaseReceptors, Histamine H2Receptors, HistamineUrineHistamine AntagonistsHistamine AgonistsHistamine H1 AntagonistsReceptors, Histamine H3Histamine H2 AntagonistsHistamine N-MethyltransferasePyrilamineMethylhistaminesHistidine DecarboxylaseDimapritHistamine H3 AntagonistsHistamine AgentsCimetidineChlorpheniramineMetiamideDiphenhydramineMast Cellsp-Methoxy-N-methylphenethylamineBasophilsUrinalysisThioureaImpromidineGuinea PigsAnaphylaxisBurimamideHistamine H1 Antagonists, Non-SedatingBronchial Provocation TestsRanitidineDose-Response Relationship, DrugImmunoglobulin ETriprolidineCromolyn SodiumPruritusUrine Specimen CollectionTerfenadineFamotidineAmine Oxidase (Copper-Containing)Gastric JuiceGastric MucosaSRS-AGastric AcidCetirizineSubstance Abuse DetectionMethacholine CompoundsPentagastrinMethylhistidinesTripelennamineChromatography, High Pressure LiquidKetotifenBronchiMuscle, SmoothAnti-Allergic AgentsAirway ResistanceBronchoconstrictionBacteriuriaTracheaTime FactorsEnterochromaffin-like CellsSerotoninPassive Cutaneous AnaphylaxisPiperidinesGastrinsImidazolesStomachMucunaMuscle ContractionCapillary PermeabilityDogsNasal Provocation TestsBradykininAsthmaBronchial SpasmStimulation, ChemicalHypersensitivityCreatinineKidneyGastric FistulaParietal Cells, GastricSpecimen HandlingCells, CulturedAtropineHypersensitivity, ImmediateGuanidinesClemastineEnterochromaffin CellsRats, Inbred StrainsCyclic AMPUrticariaLungIleumMaple Syrup Urine DiseaseRats, WistarSkinDiuresis