Glycinamide, a glycine pro-drug, induces antinociception by intraperitoneal or oral ingestion in ovariectomized rats

Thus, glycinamide, either by systemic or oral routes, exerts a clear analgesic effect in the VT test of nociception and a much weaker action in the TFL test. This effect is probably due to the conversion of glycinamide to glycine in the brain.