LY 341495 is a potent and selective orthosteric antagonist for the group II metabotropic glutamate receptors (mGluR2/3). Ki/IC50 values of LY-341495 are 2.3, 1.3, 173, 990, 6800, 8200 and 22000 nM for human mGlu2, mGlu3, mGlu8 , mGlu7a, mGlu1a, mGlu5a and mGlu4a receptors respectively. It is used in scientific research in several different areas, showing antidepressant effects in animal models, increasing the behavioural effects of hallucinogenic drugs in animal tests, and increasing the analgesic effects of μ-opioid agonists, as well as modulating dopamine receptor function.