Nicotinic AntagonistsReceptors, Nicotinicalpha7 Nicotinic Acetylcholine ReceptorMecamylamineNicotinic AgonistsDihydro-beta-ErythroidineAconitineNicotinePicolinesBungarotoxinsConotoxinsBicyclo Compounds, HeterocyclicDose-Response Relationship, DrugPyridinesAcetylcholineRats, Sprague-DawleyNeuronsHormone AntagonistsExcitatory Amino Acid AntagonistsDopamine AntagonistsNeurokinin-1 Receptor AntagonistsNarcotic AntagonistsAzocinesHistamine H2 AntagonistsMuscarinic AntagonistsInterleukin 1 Receptor Antagonist ProteinGABA AntagonistsQuinolizinesPiperidinesHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsHistamine AntagonistsAdenosine A2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsPurinergic P2 Receptor AntagonistsRadioligand AssaySerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsRats, WistarTorpedoBicyclo CompoundsAdenosine A1 Receptor AntagonistsLeukotriene AntagonistsAngiotensin Receptor AntagonistsBenzazepinesBinding, CompetitiveAdrenergic alpha-2 Receptor AntagonistsCholinergic AgentsAdrenergic AntagonistsGABA-A Receptor AntagonistsAdrenergic alpha-AntagonistsCells, CulturedHistamine H3 AntagonistsQuinoxalinesReceptors, N-Methyl-D-AspartateAzetidinesCalcium Channel BlockersCholinergic AntagonistsReceptors, SerotoninReceptors, EndothelinDrug InteractionsAdrenergic beta-2 Receptor AntagonistsLigandsPatch-Clamp TechniquesCalciumGuinea PigsPyrrolidinesProtein SubunitsQuinuclidinesSerotonin 5-HT1 Receptor AntagonistsDopamineBehavior, AnimalDizocilpine MaleateAdenosine A3 Receptor AntagonistsIndolesSynaptic TransmissionAnabasineMice, Inbred C57BLReceptor, Endothelin ABiphenyl CompoundsElectrophysiologyEstrogen AntagonistsHippocampusSignal TransductionIsoxazolesNaltrexoneBenzylidene CompoundsElectric StimulationPiperazinesTime FactorsSulfonamidesNaloxoneSerotonin Receptor AgonistsDrug Partial AgonismXanthinesPurinergic P2X Receptor AntagonistsPyrazolesPeptides, CyclicPurinergic AntagonistsBrain