StrychnineReceptors, GlycineGlycine AgentsGlycineBicucullineGABA AntagonistsGABA-A Receptor Antagonistsgamma-Aminobutyric AcidPicrotoxinTaurineReceptors, NeurotransmitterInterleukin 1 Receptor Antagonist ProteinGlycine Plasma Membrane Transport ProteinsSpinal CordDose-Response Relationship, DrugNeurokinin-1 Receptor AntagonistsRats, Sprague-DawleyExcitatory Amino Acid Antagonistsbeta-AlaninePoisons