Metoclopramide-d3 is deuterium labeled Metoclopramide. Metoclopramide is a potent antagonist of 5-HT3 and dopamine D2 receptor, with IC50s of 308 nM and 483 nM, respectively. Metoclopramide can be used for the research of nausea and vomiting, gastro-oesophageal reflux, and gastroparesis[1][2].