Muscarinic AntagonistsReceptors, MuscarinicMuscarinic AgonistsReceptor, Muscarinic M1Receptor, Muscarinic M4Scopolamine HydrobromideAtropineReceptor, Muscarinic M3PirenzepineParasympatholyticsN-MethylscopolamineParasympathomimeticsCarbacholGlycopyrrolateScopolamine DerivativesQuinuclidinyl BenzilateOxotremorineDiaminesGallamine TriethiodideMuscarineCholinergic AgonistsAcetylcholinePropylbenzilylcholine MustardDicyclomineTropanesBenzilatesCholinergic AgentsArecolineCholinergic AntagonistsPiperidinesQuinuclidinesNicotinic AntagonistsPilocarpineReceptor, Muscarinic M2Guinea PigsDose-Response Relationship, DrugReceptors, CholinergicAtropine 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 StrainsTime FactorsCerebral CortexMyocardiumMembrane PotentialsInterleukin 1 Receptor Antagonist ProteinGABA AntagonistsKineticsSynaptic TransmissionCells, CulturedElectrophysiologyHistamine H1 AntagonistsMicrodialysisHeartHippocampusPurinergic P1 Receptor AntagonistsHistamine AntagonistsAdrenergic alpha-1 Receptor Antagonists