One of the mysteries of the English language finally explained.
Definition of metoclopramide in US English:
metoclopramide
noun
PharmacologyA procainamide derivative that is a dopamine D2-receptor antagonist, given (usually as the hydrochloride) orally or by injection as an anti-emetic and stimulant of gastrointestinal motility; 4-amino-5-chloro-N-(2-diethylaminoethyl)-2-methoxybenzamide, C₁₄H₂₂ClN₃O₂.
Origin
1960s; earliest use found in Semaine des Hopitaux de Paris. From French métoclopramide from elements of the chemical name méthoxy-2 chloro-5 procaïnamide from méthoxy- + chloro- + procaïnamide.