Receptors, Histamine H3Receptors, Histamine H1HistamineReceptors, Histamine H2Histamine H1 AntagonistsHistamine AgonistsReceptors, HistamineHistamine H2 AntagonistsHistamine AntagonistsHistamine H3 AntagonistsHistamine ReleaseMethylhistaminesChlorpheniramineDimapritReceptors, IgECimetidineMetiamideThioureaImpromidineDiphenhydramineBinding, CompetitiveHistamine N-MethyltransferaseHistamine AgentsKineticsFamotidineMast CellsImmunoglobulin ERanitidineBurimamideHistidine DecarboxylasePyrilamineHistamine H1 Antagonists, Non-SedatingDoxepinGuinea PigsChromatography, AffinityRadioligand AssayProtein BindingReceptors, Cell SurfaceIsothiuroniumMolecular Sequence DataDose-Response Relationship, DrugPiperidinesBinding SitesCell LineAmino Acid SequenceBasophilsLigandsTripelennamineImidazolesCells, CulturedRecombinant ProteinsReceptors, IgGp-Methoxy-N-methylphenethylamineTerfenadineTriprolidineLeukemia Inhibitory Factor Receptor alpha SubunitGastric AcidCHO CellsCricetinaeCell MembraneKetotifenReceptors, G-Protein-CoupledDibenzoxepinsReceptors, OSM-LIFReceptor AggregationSignal TransductionReceptors, DrugAntibody AffinityReceptors, FcBetahistineGuanidinesReceptors, Fibroblast Growth FactorBase SequenceAffinity LabelsTransfectionPruritusCetirizineLeukemia, Basophilic, AcuteGastric MucosaStructure-Activity RelationshipAntibodies, MonoclonalReceptors, Nerve Growth FactorCalciumAnaphylaxisTumor Cells, CulturedCell DegranulationDibenzazepinesRNA, MessengerModels, MolecularMuscle, SmoothRats, WistarPhosphorylationAstemizoleReceptors, Leukotriene B4Cloning, MolecularCross-Linking ReagentsDimethindeneDrug Inverse AgonismNizatidineIodine Radioisotopes