Histamine ReleaseMast CellsHistamineBasophilsp-Methoxy-N-methylphenethylamineImmunoglobulin EReceptors, Histamine H1Receptors, Histamine H2Receptors, HistamineHistamine AntagonistsHistamine AgonistsHistamine H1 AntagonistsReceptors, Histamine H3Cell DegranulationHistamine H2 AntagonistsTryptasesHistamine N-MethyltransferasePyrilamineChymasesReceptors, IgEHistidine DecarboxylaseMethylhistaminesAnaphylaxisDimapritCromolyn SodiumMastocytosisHistamine H3 AntagonistsCimetidineHistamine AgentsChlorpheniramineCells, CulturedPassive Cutaneous AnaphylaxisProto-Oncogene Proteins c-kitKetotifenPeritoneal CavityDiphenhydramineSerine EndopeptidasesMetiamideMastocytosis, SystemicCalciumStem Cell FactorCytoplasmic GranulesGuinea Pigsbeta-N-AcetylhexosaminidasesDose-Response Relationship, DrugAnti-Allergic AgentsSkinHypersensitivityCell CountLeukemia, Mast-CellCarboxypeptidases AMice, Inbred C57BLSerotonin