Metoclopramide hydrochloride is a dopamine receptor antagonist primarily used to treat nausea, vomiting, and gastrointestinal conditions like gastroparesis and reflux.
Mechanism of Action:
Metoclopramide works by blocking dopamine receptors in the brain, particularly in the chemoreceptor trigger zone (which helps control vomiting). It also enhances the response of the gastrointestinal tract to acetylcholine, increasing gut motility and speeding up stomach emptying.