How It WorksNaltrexone or Revia is a narcotic antagonist, which was originally used for narcotic dependency.
Alcohol supposedly stimulates the body's natural opiates.
Naltrexone or Revia blocks this stimulation reducing cravings and pleasure. Naltrexone or Revia acts for 24 hours, thus a once daily dose is required. However, addiction counselling and supportive therapy is essential. With Naltrexone or Revia there are less craving, fewer drinking days, fewer drinks per occasion, and a lower incidence of relapse. Side EffectsNaltrexone or Revia can cause nausea, dizziness, headache, and weight loss.