This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'All of the following are true for metoclopramide except? \nSelect and explain. \nA. Chemically related to procainamide, B. Speeds gastric emptying, C. Stimulates chemoreceptor trigger zone, D. Blocks D2 receptors', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Stimulates chemoreceptor trigger zone Metoclopromide suppresses chemoreceptor trigger zone (CTZ) --> has antiemetic action.", 'role': 'assistant'}]