Vivitrol is an FDA-approved injectable medication commonly used in medication-assisted treatment programs for alcohol and opioid use disorders.  Vivitrol contains naltrexone, an opioid antagonist, which assists in reducing cravings and managing withdrawal symptoms.
By blocking opioid receptors in the brain, Vivitrol injections can also reduce the risk of relapse and overdose. In general, Vivitrol is a safe and effective way to manage opioid and alcohol addiction without risking an increase in tolerance levels or physical dependence.