Wakefulness-Promoting AgentsPhenoxybenzamineReceptors, Adrenergic, alpha-2Adrenergic alpha-AntagonistsDibenzylchlorethamineReceptors, Adrenergic, alphaTolazolineReceptors, AdrenergicNorepinephrinePhentolamineSympatholyticsPrazosinNormetanephrinePropranololCystamineEpinephrineReserpineGuanethidineAdrenergic alpha-AgonistsYohimbineErgotamineBretylium CompoundsPharmacologySympathomimeticsVas DeferensDesipramineNictitating MembraneElectric StimulationIsoproterenolalpha 1-AntitrypsinHexamethonium CompoundsMethyltyrosinesCatsCatecholaminesHydroxydopaminesChloraloseMetaraminolPhenylephrineClonidineTyramineAtropineMuscle, SmoothMuscle ContractionCycloparaffinsReceptors, Adrenergic, alpha-1Sympathetic Nervous SystemCocaineGuinea PigsUrethral ObstructionAmino AlcoholsAdrenergic beta-AntagonistsDogsHypoxia-Inducible Factor 1, alpha SubunitDiphenylacetic AcidsAdrenergic alpha-1 Receptor AntagonistsRabbitsEthylaminesIleumMethysergideNerve EndingsChlorisondamineLysergic Acid DiethylamideDihydroergotoxineSpasmGanglia, AutonomicDose-Response Relationship, DrugAcetylcholinePerfusionStimulation, Chemical