This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacotherapy Management of Children and Adolescents, Subject name: Psychiatry
A19 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 restlessness, fidgety, irritability and cannot sit still at one place. The most appropriate treatment strategy is - 
Select and explain. 
A. Increase in the dose of haloperidol, B. Addition of anticholinergic drug, C. Addtion of beta blocker, D. Adding another antipsychotic drug
C: Addtion of beta blocker
Answer: C: Addtion of beta blocker 
Explanation: Ans: C Akathasia is the complication. It's the most common extrapyramidal side effect to develop due to use of antipsychotics. it appears within hoursto weeks of starting anti psychotics. Doc is propranolol.