MeSH definition : The D-enantiomer is a potent and specific antagonist of NMDA glutamate receptors (RECEPTORS,
N-METHYL-D-ASPARTATE). The L form is inactive at NMDA receptors but may affect the
AP4 (2-amino-4-phosphonobutyrate; APB) excitatory amino acid receptors.;
The D-enantiomer is a potent and specific antagonist of NMDA glutamate receptors (RECEPTORS,
N-METHYL-D-ASPARTATE). The L form is inactive at NMDA receptors but may affect the
AP4 (2-amino-4-phosphonobutyrate; APB) excitatory amino acid receptors.