Description Memantine 20mg per mL in a 30mL bottle. Memantine, or known as Memantine HcL, is an uncompetitive NMDA receptor antagonist, and thus relies on glutamate’s activation of the NMDA receptor to take effect. For more information on Memantine read: Memantine Wikipedia CAS Number 19982-08-2 Appearance Liquid Chemical Names 3,5-dimethyltricyclo[3.3.1.13,7]decan-1amine or 3,5-dimethyladamantan-1-amine Molecular Formula C12H21N Molecular Weight 179.3 g/mol