This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the drug Does not have active metabolite \nSelect and explain. \nA. Diazepam, B. Propanonol, C. Allupurinol, D. Lisnopril', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (Ref KDT 6e p485). Captopril and lisinopril are ACE inhibitors that are not prodrugs. Diazepam produce many active metabolites like.oxazepam. Propranolol can produce 4-hydroxypropanolol .which has b-antagonist activity. Allopurinol gives rise to oxypurinol which can inhibit xanthine oxidase.', 'role': 'assistant'}]