AtropineMuscarinic AntagonistsParasympatholyticsAtropine DerivativesReceptors, MuscarinicHexamethonium CompoundsAcetylcholinePralidoxime CompoundsPhysostigmineParasympathomimeticsParasympathetic Nervous SystemVagus NerveCarbacholMydriaticsMuscle, SmoothPirenzepineNeostigmineAutonomic AgentsElectric StimulationOrganophosphate PoisoningMethacholine CompoundsGuinea PigsMuscle ContractionPropranololGuanethidineGlycopyrrolateVagotomyMuscarinic AgonistsPhentolamineHeart RateCholinesterase ReactivatorsCholinesterase InhibitorsBethanecholAntidotesTetrodotoxinIleumGastrointestinal MotilityCholinergic FibersAutonomic Nervous SystemBethanechol CompoundsBradycardiaOxotremorineDogsSalivationReceptors, CholinergicPreanesthetic MedicationQuinuclidinyl BenzilateCholinergic AgonistsScopolamine HydrobromideCholinergic AgentsDose-Response Relationship, DrugCholinergic AntagonistsGanglionic BlockersMuscarineDichlorvosTropanesSympatholyticsHistamineStomachCatsPentolinium TartrateMuscle RelaxationSomanBretylium CompoundsMecamylamineDepression, ChemicalUrinary BladderTracheaReceptor, Muscarinic M3NorepinephrineVasoactive Intestinal PeptideMethysergideGastric JuiceSecretory RateMetiamideDimethylphenylpiperazinium IodideOphthalmic SolutionsSubstance PReflexPhenoxybenzamineReceptor, Muscarinic M2SympathomimeticsBlood PressurePilocarpineGastric FundusN-MethylscopolamineTachykininsMetipranololAdjuvants, AnesthesiaReceptor, Muscarinic M1Sympathetic Nervous SystemSplanchnic NervesSolanaceous AlkaloidsBenzilatesParotid GlandDicyclomine