This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Which of the following drugs exhibits narrow therapeutic window phenomenon? \nSelect and explain. \nA. Captopril, B. Furosemide, C. Diazepam, D. Imipramine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Imipramine exhibit therapeutic window phenomenon. also seen with drugs like phenytoin. lithium.theophylline. so the administrationis to be monitored using therapeutic drug monitoring. Ref: KDT 6/e pg. 46.', 'role': 'assistant'}]