HistamineReceptors, Histamine H1Histamine ReleaseReceptors, Histamine H2Receptors, HistamineHistamine AntagonistsHistamine AgonistsHistamine H1 AntagonistsReceptors, Histamine H3Histamine H2 AntagonistsHistamine N-MethyltransferasePyrilamineMethylhistaminesHistidine DecarboxylaseDimapritHistamine H3 AntagonistsHistamine AgentsCimetidineChlorpheniramineMetiamideDiphenhydramineMast Cellsp-Methoxy-N-methylphenethylamineBasophilsImpromidineThioureaGuinea PigsAnaphylaxisBurimamideHistamine H1 Antagonists, Non-SedatingBronchial Provocation TestsRanitidineTriprolidineImmunoglobulin ECromolyn SodiumPruritusTerfenadineDose-Response Relationship, DrugFamotidineAmine Oxidase (Copper-Containing)Gastric JuiceGastric MucosaSRS-AGastric AcidCetirizineMethacholine CompoundsPentagastrinKetotifenTripelennamineBronchiAnti-Allergic AgentsMuscle, SmoothAirway ResistanceBronchoconstrictionTracheaEnterochromaffin-like CellsMethylhistidinesPassive Cutaneous AnaphylaxisGastrinsSerotoninPiperidinesMucunaStomachMuscle ContractionNasal Provocation TestsCapillary PermeabilityBronchial SpasmBradykininImidazolesStimulation, ChemicalAsthmaHypersensitivityGastric FistulaParietal Cells, GastricHypersensitivity, ImmediateClemastineEnterochromaffin CellsAtropineUrticariaCells, CulturedAstemizoleInjections, IntradermalGuanidinesCyclic AMPIleumBetahistineCarbacholLungCyproheptadineSneezing