Receptors, Histamine H3HistamineReceptors, Histamine H1Receptors, Histamine H2Histamine AgonistsHistamine H1 AntagonistsHistamine AntagonistsReceptors, HistamineHistamine H2 AntagonistsHistamine H3 AntagonistsMethylhistaminesHistidine DecarboxylaseHypothalamic Area, LateralHistamine ReleaseHistamine AgentsChlorpheniramineDimapritCimetidinePyrilamineTriprolidineDiphenhydramineThioureaHistamine N-MethyltransferaseHypothalamus, PosteriorMetiamidePiperidinesRanitidineImpromidineGuinea PigsFamotidineDose-Response Relationship, DrugBurimamidePromethazineMamillary BodiesHistamine H1 Antagonists, Non-SedatingWakefulnessOrexin ReceptorsDoxepinRats, WistarImidazolesReceptors, G-Protein-CoupledIsothiuroniumMethylhistidinesReceptors, NeuropeptideRats, Sprague-DawleyNeuronsTripelennamineRadioligand Assayp-Methoxy-N-methylphenethylamineTerfenadineGastric AcidMast CellsBrainHormone AntagonistsKetotifenInjections, IntraventricularHypothalamusUnconsciousnessDibenzoxepinsMicrodialysisNeurokinin-1 Receptor AntagonistsDopamine AntagonistsExcitatory Amino Acid AntagonistsBetahistineSleepRibosome Inactivating Proteins, Type 1PruritusAtropineGuanidinesCetirizineArousalNarcotic AntagonistsBehavior, AnimalHypothalamus, AnteriorGastric MucosaSleep StagesBinding, CompetitiveMuscle, SmoothPreoptic AreaConvulsantsInterleukin 1 Receptor Antagonist ProteinMuscarinic AntagonistsDibenzazepinesAnaphylaxisVestibular NucleiDrug Inverse AgonismNeurotransmitter AgentsMotor ActivityElectric StimulationTime FactorsNizatidineCyproheptadineAstemizoleIndolesPyridinesGABA AntagonistsSynaptic TransmissionMuscle ContractionNeuropeptidesDrug Interactions