This is a drug produced by Hoffmann-La Roche which acts for a strong and selective destructive allosteric modulator for group II with the metabotropic glutamate receptors (mGluR2/3), staying equipotent at mGluR2 and mGluR3 but with no activity at other mGluR subtypes.Ephedrine could be the active ingredient in Ephedra sinica. One isomer (pseudoephe