KRP-199, a highly potent and selective antagonist for the AMPA receptors, exhibits good neuroprotective effects in vivo.This compound is unstable in powder form and other related salt forms are recommended.
Substance P (1-9) is a nonapeptide that reduces the inactivation of substance P in the guinea-pig ileum and urinary bladder, and is responsible for various excitatory effects on central and peripheral neurons.