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': 'A person consumes large quantities of alcohol daily since 20 years.He is physically dependent on alcohol. Drug should be given to this person is: \nSelect and explain. \nA. Disulfiram, B. Acamprosate, C. Naltrexone, D. Chlordiazepoxide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Disulfiram is the main drug tahtbsi used to make alcohol consumption an unpleasant experience. Disulfiram inhibit aldehyde dehydrogenase , alcohol is not metabolized and acetaldehyde accumulates which produces unpleasant symptoms and patient develops an aversion.All the other given drugs can be used but primarily displaces is tried. Ref: KD Tripathi 8th ed.', 'role': 'assistant'}]