GABA AntagonistsPyridazinesBicucullinegamma-Aminobutyric AcidGABA-A Receptor AntagonistsPicrotoxinReceptors, GABA-ABethanechol CompoundsStrychnineMuscimolGABA AgonistsAminobutyratesNeural InhibitionBaclofenGABA AgentsGABA ModulatorsNeuronsGABA-A Receptor AgonistsPhosphinic AcidsGlycine AgentsAction PotentialsExcitatory Amino Acid AntagonistsInhibitory Postsynaptic PotentialsPregnanedionesRats, Sprague-DawleyGABA Plasma Membrane Transport ProteinsReceptors, GABA-BPatch-Clamp TechniquesSynaptic TransmissionGABA Uptake InhibitorsHormone AntagonistsSolitary NucleusDopamine AntagonistsNeurokinin-1 Receptor AntagonistsDose-Response Relationship, DrugElectrophysiologyNarcotic AntagonistsElectric StimulationExcitatory Postsynaptic PotentialsAnimals, NewbornHistamine H2 AntagonistsInterleukin 1 Receptor Antagonist ProteinMuscarinic AntagonistsReflexGABA-B Receptor AntagonistsPiperidinesNipecotic AcidsHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsRats, WistarNicotinic AntagonistsGABA-B Receptor AgonistsHistamine AntagonistsAdenosine A2 Receptor AntagonistsPurinergic P2 Receptor AntagonistsAdrenergic alpha-1 Receptor AntagonistsSerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsLeukotriene Antagonists4-Aminobutyrate TransaminaseAngiotensin Receptor AntagonistsGlutamic AcidAdrenergic alpha-2 Receptor AntagonistsReceptors, N-Methyl-D-AspartateHippocampusDiazepamAdrenergic alpha-AntagonistsAdrenergic AntagonistsGlutamate DecarboxylaseRadioligand AssayCells, CulturedDrug InteractionsBinding, CompetitiveReceptors, SerotoninHistamine H3 AntagonistsGuinea PigsDizocilpine MaleateCalcium Channel BlockersMembrane PotentialsSynapsesBenzodiazepinesReceptors, EndothelinGlycineAdrenergic beta-2 Receptor AntagonistsSerotonin 5-HT1 Receptor AntagonistsCalciumQuinoxalinesBehavior, AnimalBenzazepinesAdenosine A3 Receptor AntagonistsSerotoninPyrazolesPyridinesNeurotransmitter AgentsNaltrexone2-Amino-5-phosphonovaleratePiperazinesNaloxoneTime Factors