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': 'Which of the following drugs is not used in opioid dependence? \nSelect and explain. \nA. Disulfiram, B. Clonidine, C. Lorazepam, D. Naltrexone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Treatment of opioid dependence \n1)\xa0\xa0 Detoxification (treatment of withdrawal syndrome)\n\nMethadone is the DOC\nAlternatives:- Buprenorphine, LAAM, clonidine, clonidine with naltrexone with or without benzodiazepines (Lorazepam, oxazepam), Lofexidine, Dextropropoxyphene, diphenoxylate.\n\n2)\xa0\xa0 Maintenance (to prevent relapse)\n\nMethadone is the DOC\nAlternatives:- Buprenorphine, LAAM, opioid antagonists (Naltrexone).', 'role': 'assistant'}]