Wakefulness-Promoting AgentsYohimbineReceptors, Adrenergic, alpha-2Adrenergic alpha-AntagonistsAdrenergic alpha-2 Receptor AntagonistsReceptors, Adrenergic, alphaClonidinePrazosinAdrenergic alpha-AgonistsInterleukin 1 Receptor Antagonist ProteinNeurokinin-1 Receptor AntagonistsDose-Response Relationship, DrugNorepinephrineAdrenergic AntagonistsIdazoxanDioxanesRats, Sprague-DawleyAdrenergic alpha-1 Receptor AntagonistsAdrenergic alpha-2 Receptor AgonistsReceptors, AdrenergicPurinergic P1 Receptor AntagonistsPiperidinesOxymetazolineHistamine H2 AntagonistsDopamine AntagonistsSerotonin 5-HT3 Receptor AntagonistsXylazineExcitatory Amino Acid AntagonistsRats, WistarPhentolamineSerotonin AntagonistsAngiotensin Receptor AntagonistsNarcotic AntagonistsQuinoxalinesSerotonin 5-HT2 Receptor AntagonistsAdenosine A2 Receptor AntagonistsHormone AntagonistsDrug InteractionsElectric StimulationAdenosine A1 Receptor AntagonistsRadioligand AssayGuinea PigsReceptors, SerotoninPurinergic P2 Receptor AntagonistsAzepinesVas DeferensReceptors, Adrenergic, alpha-1Histamine H1 AntagonistsReceptors, EndothelinMuscarinic AntagonistsImidazoline ReceptorsGABA-A Receptor AntagonistsSerotoninSympatholyticsBinding, CompetitiveMuscle ContractionGABA AntagonistsSialoglycoproteinsHistamine AntagonistsEpinephrineNaloxoneAgmatineRats, Inbred StrainsChlorprothixenealpha 1-AntitrypsinBehavior, AnimalInjections, IntraventricularImidazolesLeukotriene AntagonistsBlood PressureReceptor, Endothelin AMethysergideReceptors, N-Methyl-D-AspartateSerotonin 5-HT1 Receptor AntagonistsNicotinic AntagonistsSympathetic Nervous SystemPiperazinesDizocilpine MaleateKetanserinReceptors, Interleukin-1PhenylephrineIndolesBiphenyl CompoundsDogsTime FactorsVasoconstrictionSynaptic TransmissionBenzazepinesTetrazolesMydriasisRabbitsMuscle, SmoothNeuronsPyridinesCells, CulturedPropranololAdrenergic beta-Antagonists8-Hydroxy-2-(di-n-propylamino)tetralinXanthinesExtinction, Psychological