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: Psychiatry
[{'content': 'A 19 year old boy suffering from chronic schizophrenia is put on haloperidol in the dose of 20 mg/day. A week after the initiation of medication the patient shows be restlessness, fidgety, irritability and cannot sit still at one place. The most appropriate treatment strategy is: \nSelect and explain. \nA. Increase in the dose of haloperidol, B. Addition of anticholinergic drug, C. Addition of betablocker, D. Adding another antipsychotic drug', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Addition of B blocker', 'role': 'assistant'}]