
Vivitrol (Naltrexone Injection): How It Works for Recovery
Among the FDA-approved medications for addiction treatment, Vivitrol — the brand name for extended-release naltrexone — occupies a distinct and important place. Unlike buprenorphine (Suboxone) or methadone, which are opioid agonists that work by activating opioid receptors, Vivitrol is an opioid antagonist: it blocks opioid receptors. It’s also different from




















