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: Psychiatry
[{'content': 'All are anti craving agent for alcohol except: \nSelect and explain. \nA. Lorazepam, B. Naltrexone, C. Topiramate, D. Acamprosate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Lorazepam', 'role': 'assistant'}]