system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The drug which is used for long-term maintenance in opioid addiction -
assistant
The correct answer is  Drugs for long-term maintenance for opioid dependence (addiction) :- Methadone is the DOC. Alternatives are buprenorphine, LAAM, opioid antagonists (naltrexone).