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: Pharmacology
A 30 year old manic patient was prescribed haloperidol one week back. For last two days he has become restless and kept pacing in the room for a day. One examination he was found to have tremors of hand. he is most likely suffering from- 
Select and explain. 
A. Anhedonia, B. Dystonia, C. Restless leg syndrome, D. Akathisia
D: Akathisia
Answer: D: Akathisia 
Explanation: Ans. is 'd' i.e., Akathisia Akathisia o Restlessness, feeling of discomfo, agitation (complete desire to move about), but without anxiety. o Between 1-8 weeks of therapy. o Treatment --> Propranolol is DOC (central anticholinergic is alternative).