CoughPhenylephrineAdrenergic alpha-AgonistsWhooping CoughAdrenergic alpha-1 Receptor AgonistsAntitussive AgentsVasoconstrictor AgentsReceptors, Adrenergic, alpha-1EphedrineReceptors, Adrenergic, alphaPrazosinVasoconstrictionAdrenergic alpha-AntagonistsMydriaticsSympathomimeticsAorta, ThoracicAdrenergic alpha-1 Receptor AntagonistsBaroreflexAdrenergic AgonistsBlood PressureIsoproterenolNitroprussideNorepinephrineDose-Response Relationship, DrugClonidineVasodilator AgentsReceptors, AdrenergicTropicamideMuscle, Smooth, VascularReflexMuscle ContractionMethoxamineCapsaicinMesenteric ArteriesVasodilationAnesthesia, ObstetricalPressoreceptorsPropranololHeart RateRats, Sprague-DawleyPotassium ChlorideAnesthesia, SpinalNasal DecongestantsPhentolamineCitric AcidRats, WistarEpinephrineHypotensionAcetylcholineSympathetic Nervous SystemYohimbineNitric OxideCodeineDioxanesMuscle RelaxationAdrenergic beta-AgonistsRats, Inbred StrainsAortaArteriesEndothelium, VascularCalciumRabbitsNG-Nitroarginine Methyl EsterRespiratory SoundsVasopressinsExpectorantsTailPupilPhenoxybenzamineDogsEnzyme InhibitorsOxymetazolineStimulation, ChemicalGuinea PigsRegional Blood FlowAngiotensin IINitric Oxide SynthaseChronic DiseasePenisVascular ResistanceVagus NerveQuinoxalinesBronchitisMetaproterenolHeartReceptors, Adrenergic, alpha-2CardiomegalyMyographyNitroarginineHemodynamicsMuscle, SmoothBordetella pertussisCardiotonic AgentsMuscle TonusAsthmaTime FactorsReceptors, Adrenergic, betaAdrenergic alpha-2 Receptor AgonistsCesarean SectionEndothelin-1