Muscarinic AntagonistsReceptors, MuscarinicMuscarinic AgonistsReceptor, Muscarinic M1Receptor, Muscarinic M3PirenzepineParasympatholyticsN-MethylscopolamineAtropineParasympathomimeticsCarbacholGlycopyrrolateScopolamine DerivativesReceptor, Muscarinic M4Scopolamine HydrobromideQuinuclidinyl BenzilateOxotremorineDiaminesGallamine TriethiodideMuscarineCholinergic AgonistsAcetylcholinePropylbenzilylcholine MustardDicyclomineTropanesBenzilatesCholinergic AgentsArecolineCholinergic AntagonistsPiperidinesQuinuclidinesNicotinic AntagonistsPilocarpineReceptor, Muscarinic M2Guinea PigsReceptors, CholinergicDose-Response Relationship, DrugAtropine DerivativesSomanTupaiidaeRats, Sprague-DawleyMecamylamineParasympathetic Nervous SystemMuscle, SmoothPhenylpropanolamineSarinCholinesterase InhibitorsRadioligand AssayBronchodilator AgentsAdrenergic beta-2 Receptor AgonistsMuscle ContractionIleumPhysostigmineCholinergic FibersHexamethonium CompoundsBinding, CompetitiveElectric StimulationHexamethoniumRats, WistarNicotinic AgonistsBronchoconstrictionCalciumReceptors, NicotinicTracheaPhosphatidylinositolsUrinary BladderHormone AntagonistsAdministration, InhalationDopamine AntagonistsInositol PhosphatesExcitatory Amino Acid AntagonistsAdrenergic alpha-AntagonistsBethanecholNeurokinin-1 Receptor AntagonistsMyopiaNicotineDrug InteractionsNarcotic AntagonistsHistamine H2 AntagonistsCricetinaeNeuronsPulmonary Disease, Chronic ObstructiveRats, Inbred StrainsCerebral CortexTime FactorsMyocardiumMembrane PotentialsInterleukin 1 Receptor Antagonist ProteinGABA AntagonistsSynaptic TransmissionElectrophysiologyHistamine H1 AntagonistsMicrodialysisCells, CulturedKineticsHeartHippocampusPurinergic P1 Receptor AntagonistsHistamine AntagonistsAdrenergic alpha-1 Receptor Antagonists