Naltrexone hydrochloride is a relatively pure and long-lasting opioid antagonist. Oral naltrexone has been used to treat opioid dependence for many years and has been approved to treat alcohol use disorders (AUDs) since 1994. Naltrexone reduces both the rewarding effects of alcohol and craving for it.Naltrexone has an average rating of 8.5 out of 10 from a total of 307 reviews for the treatment of Alcohol Use Disorder. 83% of reviewers reported a positive experience.