NMDAR antagonists fall into four categories: Competitive antagonists, which bind to and block the binding site of the neurotransmitter glutamate; glycine antagonists, which bind to and block the glycine site; noncompetitive antagonists, which inhibit NMDARs by binding to allosteric sites; and uncompetitive antagonists, which block the ion channel by binding to a site within it.
receptor | LDL receptor | Receptor (biochemistry) | Continuous erythropoietin receptor activator | GABA receptor | Epidermal growth factor receptor | NMDA receptor | Sensory receptor | receptor (biochemistry) | metabotropic glutamate receptor | 5-HT2A receptor | VLDL receptor | TGF beta receptor 2 | receptor antagonist | epidermal growth factor receptor | 5-HT receptor | RAR-related orphan receptor alpha | Metabotropic glutamate receptor 5 | Metabotropic glutamate receptor 2 | G protein-coupled receptor | AMPA receptor | Adenosine A1 receptor | Toll-like receptor | TNF receptor associated periodic syndrome | taste receptor | Sigma-1 receptor | Receptor antagonist | Receptor activity-modifying protein | Pancreatic polypeptide receptor 1 | Nuclear receptor |