NicotineReceptors, NicotinicNicotinic AgonistsNicotinic Antagonistsalpha7 Nicotinic Acetylcholine ReceptorAconitineDihydro-beta-ErythroidineMecamylamineAzocinesBungarotoxinsGanglionic StimulantsDimethylphenylpiperazinium IodideQuinolizinesBicyclo Compounds, HeterocyclicTobacco Use DisorderAcetylcholineHexamethoniumAnabasineCholinergic AgentsConotoxinsCotinineGalantaminePyridinesAlkaloidsDose-Response Relationship, DrugSubstance Withdrawal SyndromeNeuronsPicolinesHexamethonium CompoundsLobelineBenzylidene CompoundsRats, Sprague-DawleyGanglia, ParasympatheticSmokingCholinesterase InhibitorsTubocurarineReceptors, CholinergicChewing GumSmoking CessationDopamineIbogaineAzetidinesProtein SubunitsAtropineHabenulaMuscarinic AntagonistsTobacco Use Cessation ProductsSelf AdministrationPyrantelPatch-Clamp TechniquesParasympathomimeticsReceptors, MuscarinicSynaptosomesSynaptic TransmissionXenopus laevisCholineCholinergic AgonistsQuinoxalinesAdministration, CutaneousTorpedoCorpus StriatumRadioligand AssayChromaffin CellsOocytesChlorisondamineTacrineDextrorphanEpilepsy, Frontal LobeMembrane PotentialsBrainBehavior, AnimalCarbacholBenzazepinesLevamisoleTarsMorantelElectrophysiologyMuscarinic AgonistsDrug Partial AgonismAdrenal MedullaSaimiriCholinergic FibersNeostigmineGanglionic BlockersMuscarineReptilian ProteinsHippocampusCholinergic AntagonistsElectric StimulationMollusk VenomsConditioning, OperantXenopusIon Channel GatingParasympathetic Nervous SystemAutoradiographyBinding, CompetitiveRewardNootropic AgentsTime FactorsCatecholamines