GABA Antagonistsgamma-Aminobutyric AcidBicucullineBethanechol CompoundsPicrotoxinStrychnineAminobutyratesGABA-A Receptor AntagonistsMuscimolPyridazinesReceptors, GABA-ABaclofenGABA AgonistsNeural InhibitionGABA AgentsNeuronsGABA ModulatorsAction PotentialsGABA Plasma Membrane Transport ProteinsReceptors, GABA-BExcitatory Amino Acid AntagonistsGABA Uptake InhibitorsHormone AntagonistsDopamine AntagonistsRats, Sprague-DawleyNeurokinin-1 Receptor AntagonistsDose-Response Relationship, DrugNarcotic AntagonistsHistamine H2 AntagonistsGABA-A Receptor AgonistsInterleukin 1 Receptor Antagonist ProteinMuscarinic AntagonistsGABA-B Receptor AntagonistsPiperidinesNipecotic AcidsHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsRats, WistarNicotinic AntagonistsPhosphinic AcidsGABA-B Receptor AgonistsHistamine AntagonistsAdenosine A2 Receptor AntagonistsPurinergic P2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsSerotonin 5-HT3 Receptor AntagonistsPatch-Clamp TechniquesSynaptic TransmissionSerotonin 5-HT2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsLeukotriene Antagonists4-Aminobutyrate TransaminaseAngiotensin Receptor AntagonistsGlutamic AcidAdrenergic alpha-2 Receptor AntagonistsReceptors, N-Methyl-D-AspartateHippocampusDiazepamInhibitory Postsynaptic PotentialsAdrenergic alpha-AntagonistsElectric StimulationAdrenergic AntagonistsGlutamate DecarboxylaseRadioligand AssayCells, CulturedDrug InteractionsBinding, CompetitiveReceptors, SerotoninHistamine H3 AntagonistsGuinea PigsDizocilpine MaleateElectrophysiologyCalcium Channel BlockersMembrane PotentialsSynapsesBenzodiazepinesReceptors, EndothelinGlycineAdrenergic beta-2 Receptor AntagonistsSerotonin 5-HT1 Receptor AntagonistsCalciumQuinoxalinesBehavior, AnimalBenzazepinesAdenosine A3 Receptor AntagonistsSerotoninPyrazolesPyridinesNeurotransmitter AgentsNaltrexone2-Amino-5-phosphonovaleratePiperazinesExcitatory Postsynaptic PotentialsNaloxoneTime FactorsBiphenyl CompoundsFlumazenilReceptor, Endothelin AIsonicotinic AcidsSerotonin Receptor Agonists