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': 'Drug having narrow therapeutic range is: \nSelect and explain. \nA. Lithium, B. Seraline, C. Roboxetine, D. Dothiepin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Therapeutic range is bounded by the dose which produces a minimal therapeutic effect and the dose which produces maximal acceptable adverse effect Lithium is an unsafe drug with a narrow therapeutic range- 0.6 - 1.2 mmol/L. Ref: KD Tripathi Pharmacology 7th edition (page no;56 )', 'role': 'assistant'}]