This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
[{'content': 'Which of the following is a prodrug? \nSelect and explain. \nA. Enalapril, B. Clonidine, C. Salmeterol, D. Acetazolamide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ref; KD Tripathi pharmacology 6th edition (page no;24) prodrugs-Few drugs are inactive as such and need conversion in the body to one or more active metabolites. Enalapril is conveed to active form Enalaprilat other drugs do not need activation because they are active forms Ref: KD Tripathi 8th ed.', 'role': 'assistant'}]