(-)-MK 801 maleate is the enantiomer of (+)-MK-801, which is a highly potent and selective non-competitive NMDA glutamate receptor antagonist .

(+)-MK 801 Maleate is a highly potent, selective and non-competitive NMDA receptor antagonist with Ki of 30.5 nM.

Ifenprodil Tartrate is a high affinity and atypical noncompetitive NMDA receptor antagonist with IC50 of 0.3 μM.

Felbamate is a potent nonsedative anticonvulsant whose clinical effect may be related to the inhibition of N-methyl-D-aspartate (NMDA) .

Spermidine, a precursor of spermine, is a polyamine derived from putrescine and could help stabilize some membranes and nucleic acid structures.

Kynurenic Acid is a broad spectrum glutamatergic antagonist which can antagonize NMDA, kainate and AMPA receptors.