This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': "Doc for Gille de la tourette's syndrome \nSelect and explain. \nA. Chlorpromazine, B. Haloperidol, C. Olanzapine, D. Risperidone", 'role': 'user'}, {'content': "Answer: B \nExplanation: Haloperidol:- It is a potent antipsychotic with strong D2 receptor blocking activity. it produces few autonomic effects, is less epileptogenic, does not cause weight gain, jaundice is rare. Uses-- It is the preferred drug for acute schizophrenia, Huntington's disease and Gilles de la Tourette's syndrome. Pharmacokinetics It is metabolised by CYP3A4 and 2D6 both. Elimination t 1/2 averages 24 hours. Ref:- kd tripathi; pg num:-441", 'role': 'assistant'}]