rate of 78%. Long-acting injectable naltrexone (under the brand name Vivitrol) is an opioid receptorantagonist, blocking the effects of heroin and other
reduced-calorie diet and increased physical activity. It contains naltrexone, an opioid antagonist, and bupropion, an aminoketone atypical antidepressant. It
morphine sulfate and naltrexone hydrochloride; morphine being an opioid receptor agonist and naltrexone an opioid receptorantagonist. It is a schedule II