Butylscopolammonium BromideAtropineScopolamine HydrobromidePempidineParasympatholyticsHexamethonium CompoundsScopolamine DerivativesMuscarinic AntagonistsMotion SicknessPhysostigmineSalivationParasympathomimeticsIleumGuinea PigsMydriasisGastrointestinal MotilityBretylium CompoundsAcetylcholineReceptors, MuscarinicMuscle, SmoothLabor Stage, FirstGuanethidineVagus NerveGanglionic BlockersAtropine DerivativesPharmacologyElectric StimulationTetrodotoxinMyenteric PlexusMuscle ContractionSweat GlandsNauseaPeristalsisProcaineReceptors, CholinergicAdministration, CutaneousVomitingPralidoxime CompoundsSerotoninParasympathetic Nervous SystemNicotineTime FactorsCarbacholMydriaticsNorepinephrineMorphinePirenzepineNeostigmineAutonomic AgentsOrganophosphate PoisoningMethacholine CompoundsDouble-Blind MethodPropranololGlycopyrrolateVagotomySingle-Blind MethodMuscarinic AgonistsPhentolamineHeart RateSolutionsCholinesterase ReactivatorsCholinesterase InhibitorsChickensBethanecholAntidotesCholinergic FibersAutonomic Nervous SystemBethanechol CompoundsBradycardiaOxotremorineDogsPreanesthetic MedicationQuinuclidinyl BenzilateCholinergic AgonistsCholinergic AgentsDose-Response Relationship, DrugCholinergic AntagonistsMuscarineDichlorvosTropanesSympatholyticsHistamineStomachCatsPentolinium TartrateMuscle RelaxationSomanMecamylamineDepression, ChemicalUrinary BladderTracheaReceptor, Muscarinic M3Vasoactive Intestinal PeptideMethysergideGastric JuiceSecretory RateMetiamideDimethylphenylpiperazinium IodideOphthalmic SolutionsSubstance P