GABA Antagonistsgamma-Aminobutyric AcidBicucullinePicrotoxinBethanechol CompoundsGABA-A Receptor AntagonistsStrychnineAminobutyratesMuscimolInterleukin 1 Receptor Antagonist ProteinPyridazinesReceptors, GABA-ABaclofenGABA AgonistsNeurokinin-1 Receptor AntagonistsNeural InhibitionExcitatory Amino Acid AntagonistsHistamine H2 AntagonistsRats, Sprague-DawleyPurinergic P1 Receptor AntagonistsDopamine AntagonistsHormone AntagonistsDose-Response Relationship, DrugPiperidinesNeuronsSerotonin 5-HT3 Receptor AntagonistsGABA AgentsNarcotic AntagonistsAdenosine A2 Receptor AntagonistsAngiotensin Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsGABA ModulatorsMuscarinic AntagonistsAction PotentialsHistamine H1 AntagonistsPurinergic P2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsRats, WistarHistamine AntagonistsReceptors, EndothelinReceptors, GABA-BLeukotriene AntagonistsAdrenergic alpha-1 Receptor AntagonistsNicotinic AntagonistsGABA-B Receptor AntagonistsReceptors, N-Methyl-D-AspartateGABA Plasma Membrane Transport ProteinsReceptors, SerotoninDizocilpine MaleateSerotonin 5-HT1 Receptor AntagonistsReceptor, Endothelin ASialoglycoproteinsBiphenyl CompoundsAdrenergic alpha-2 Receptor AntagonistsBenzazepinesHistamine H3 AntagonistsRadioligand AssayGuinea PigsTetrazolesDrug InteractionsReceptors, Interleukin-1XanthinesSerotonin AntagonistsSerotonin Receptor AgonistsPyridinesPyrazolesAdrenergic alpha-AntagonistsGABA-A Receptor AgonistsSulfonamidesSynaptic TransmissionPeptides, CyclicAdenosine A3 Receptor AntagonistsCells, CulturedElectric StimulationAdrenergic AntagonistsIndolesSerotoninSubstance PBinding, CompetitiveBehavior, AnimalGABA Uptake InhibitorsQuinoxalinesAzepinesReceptors, Neurokinin-12-Amino-5-phosphonovaleratePurinergic P2X Receptor AntagonistsPiperazinesGlutamic AcidNaltrexoneLosartanAdrenergic beta-2 Receptor AntagonistsPhosphinic AcidsPyrrolidinesReceptor, Cannabinoid, CB1Receptor, Endothelin BNaloxonePatch-Clamp TechniquesReceptors, BradykininEndothelin-1Receptors, Dopamine D2