Content Naltrexone to Treat Opioid Use Disorder What should I avoid while using naltrexone (Vivitrol)? Drug Interactions Common and Serious Side Effects of Naltrexone How long will I take naltrexone? Does Vivitrol Show On A Drug Test? In the study, 28% of people in the Vivitrol group dropped out before opioid detoxification. Opioid detoxification involves