PhentolamineAdrenergic alpha-AntagonistsChemistry, PharmaceuticalPropranololReceptors, Adrenergic, alphaNorepinephrineReceptors, AdrenergicPhenoxybenzamineDrug CompoundingExcipientsDelayed-Action PreparationsTabletsEpinephrineSympatholyticsPrazosinYohimbineDosage FormsAdrenergic alpha-AgonistsAtropineClonidineDrug CarriersMethysergideSympathomimeticsTechnology, PharmaceuticalSympathetic Nervous SystemGuanethidineElectric StimulationEmulsionsDrug StabilityIsoproterenolReserpineMuscle ContractionAdrenergic beta-AntagonistsHexamethonium CompoundsAdrenergic AntagonistsAutonomic AgentsTherapeutic EquivalencyCapsulesBiological AvailabilityParticle SizeBretylium CompoundsGuinea PigsCatecholaminesPowdersDrug Delivery SystemsPhenylephrineDogsDihydroergotoxineTyramineAdrenergic alpha-2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsSolubilityPharmaceutical SolutionsErgoloid MesylatesPapaverineOxymetazolineVas DeferensMuscle, SmoothSkin AbsorptionNanoparticlesMoxisylyteMethylcelluloseDose-Response Relationship, DrugAdministration, OralMethoxamineDibenzylchlorethamineLiposomesErgotamineReceptors, Adrenergic, betaPharmaceutical VehiclesAutonomic Fibers, PostganglionicDesipramineTolazolineHydroxydopaminesRabbitsSuspensionsBlood PressureCatsVasoconstrictionHeart RateButoxamineFreeze DryingDrug InteractionsRegional Blood FlowDibenzazepinesAdministration, TopicalDioxanesAmino AlcoholsNicergolineOctopamineRats, Inbred StrainsAlprenololDrug StorageParasympatholyticsMetaraminolGelsNeuroeffector JunctionStimulation, ChemicalPolysorbatesPractolol