Which medication is not approved for alcohol use disorder treatment?

• A. Acamprosate
• B. Naltrexone
• C. Disulfiram
• D. Methadone

Answer: (D)

The main point is that certain medications are approved specifically for alcohol use disorder, while others are approved for different conditions. Acamprosate helps maintain abstinence by stabilizing brain signaling after withdrawal. Naltrexone blocks opioid receptors, which lowers the rewarding effects of alcohol and can reduce heavy drinking. Disulfiram inhibits an enzyme that makes alcohol consumption produce unpleasant effects, so it deters drinking when alcohol is used.

Methadone, on the other hand, is a long-acting opioid agonist used to treat opioid use disorder. It substitutes for other opioids to prevent withdrawal and cravings but is not approved to treat alcohol use disorder. It addresses opioid dependence, not the cravings or reinforcing effects of alcohol.