Receptors, Histamine H3Receptors, Histamine H1HistamineReceptors, Histamine H2Histamine H1 AntagonistsMonoamine OxidaseHistamine AgonistsHistamine H2 AntagonistsReceptors, HistamineHistamine AntagonistsHistamine H3 AntagonistsMonoamine Oxidase InhibitorsHistamine ReleaseMethylhistaminesVesicular Monoamine Transport ProteinsChlorpheniramineDimapritCimetidineBiogenic MonoaminesMetiamideThioureaVesicular Biogenic Amine Transport ProteinsImpromidineDiphenhydramineClorgylineFamotidineHistamine N-MethyltransferaseHistamine AgentsPiperidinesRanitidinePyrilamineHistidine DecarboxylaseBurimamideGuinea PigsHistamine H1 Antagonists, Non-SedatingSerotoninDose-Response Relationship, DrugDoxepinSelegilinePargylineIsothiuroniumTetrabenazineRadioligand AssayTripelennamineReceptors, G-Protein-CoupledTranylcyprominep-Methoxy-N-methylphenethylamineRats, Sprague-DawleyTerfenadineTriprolidineGastric AcidDopamineImidazolesPhenelzineRats, WistarMast CellsHormone AntagonistsKetotifenDopamine AntagonistsNorepinephrineTyramineDibenzoxepinsHydroxyindoleacetic AcidNeurokinin-1 Receptor AntagonistsExcitatory Amino Acid AntagonistsDibenzazepinesBrainHomovanillic AcidBetahistineBinding, CompetitiveGuanidinesPruritusCetirizineNarcotic AntagonistsGastric MucosaDrug InteractionsMuscle, SmoothInterleukin 1 Receptor Antagonist ProteinMuscarinic AntagonistsNorepinephrine Plasma Membrane Transport ProteinsBiogenic AminesReserpineCyproheptadineAnaphylaxisPyridinesPiperazinesNialamideIndolesDrug Inverse AgonismBehavior, AnimalMoclobemideNizatidineAstemizoleBenzazepinesCells, CulturedReceptors, SerotoninGABA AntagonistsNeurotransmitter AgentsCyclic AMPIproniazid