MecamylamineNicotinic AntagonistsNicotineNicotinic AgonistsReceptors, NicotinicDihydro-beta-ErythroidineChlorisondamineBrain ChemistryGanglionic BlockersBrain InjuriesAzocinesBrain NeoplasmsDimethylphenylpiperazinium IodidePempidineCholinergic AntagonistsHexamethonium CompoundsAconitineQuinolizinesBrain MappingGanglionic StimulantsScopolamine HydrobromideAcetylcholineMuscarinic AntagonistsPentolinium TartrateCholinergic AgentsBrainAtropineDose-Response Relationship, DrugHexamethoniumRats, Sprague-DawleyNeuronsalpha7 Nicotinic Acetylcholine ReceptorSubstance Withdrawal SyndromePhysostigmineBicyclo Compounds, HeterocyclicBrain EdemaDecamethonium CompoundsTubocurarineBrain StemPharmacologyBrain IschemiaParasympathomimeticsBungarotoxinsDopamineTobacco Use DisorderMagnetic Resonance ImagingNeostigmineMethyltyrosinesBehavior, AnimalCholinergic AgonistsBrain AbscessStereoisomerismRats, WistarReceptors, MuscarinicMuscarinic AgonistsReceptors, CholinergicCarotid BodySelf StimulationCholinergic FibersOxotremorineBenzazepinesCholinesterase InhibitorsDrug Interactions