MuscarineAlkaloidsErgot AlkaloidsIndole AlkaloidsPyrrolizidine AlkaloidsVinca AlkaloidsParasympathomimeticsReceptors, MuscarinicCinchona AlkaloidsMuscarinic AgonistsBerberine AlkaloidsAmaryllidaceae AlkaloidsPsilocybinePempidineAconitumGanglia, SympatheticMolecular StructureAporphinesMuscarinic AntagonistsClavicepsFruiting Bodies, FungalPlant ExtractsPirenzepineCatharanthusBenzylisoquinolinesAtropineDelphiniumAcetylcholineRana ridibundaOxotremorineBerberineSolanaceous AlkaloidsPhysostigmineRana catesbeianaReceptor, Muscarinic M3Chromaffin SystemReceptor, Muscarinic M2RutaceaeGallamine TriethiodideStereoisomerismAdrenal MedullaNeotyphodiumCoptisPlant PoisoningMembrane PotentialsCholinergic AgonistsPotassiumNicotineAgaricalesNeuronsErgotamineMethacholine CompoundsErgotismRubiaceaeLycopodiumCarbacholCalciumPlant BarkDose-Response Relationship, DrugBethanechol CompoundsPlants, MedicinalLysergic AcidMagnetic Resonance SpectroscopyPapaverFuransParasympatholyticsHeterocyclic Compounds with 4 or More RingsHarmineEphedraBelladonna AlkaloidsCatecholaminesDiencephalonPoriferaAspidospermaStructure-Activity RelationshipSulfur CompoundsSuperior Cervical GanglionPapaveraceaeSpiro CompoundsAction PotentialsDiterpenesInhibitory Concentration 50Quaternary Ammonium CompoundsVolatile Organic CompoundsScopolamine HydrobromideChromatography, High Pressure LiquidAnnonaceaeVeratridine