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': 'All of the following can be used to treat alcohol dependence except \nSelect and explain. \nA. Naltrexone, B. Acamprosate, C. Flumazenil, D. Disulfiram', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Naltrexone is orally effective opiod antagonist useful in alcohol withdrawal. Acamprosate an NMDA receptor antagonist is useful in preventing relapse. Disulfiram is used to make alcohol consumption an unpleasant experience. It inhibit the enzyme aldehyde dehydrogenase. Ref: KD Tripathi 8th ed.', 'role': 'assistant'}]