Does Vivitrol (naltrexone) help with alcohol or opioid use?
Vivitrol (extended-release naltrexone) is used to help prevent relapse in people with alcohol use disorder and to help prevent relapse after opioid detox. It works by blocking opioid receptors, which reduces the rewarding effects of alcohol-related opioid use and blocks the effects of opioids if a person tries to use them.
How does it help differently from oral naltrexone or other treatments?
Because it’s given as a monthly injection, Vivitrol can help people who have trouble taking a daily pill consistently. It’s typically used as part of a broader treatment plan that may include counseling and support.
Who is it most likely to help (and who may not be able to use it)?
Vivitrol generally is meant for people who:
- Have a diagnosed alcohol use disorder and are working to prevent relapse
- Have stopped opioids and are opioid-free long enough before starting treatment (to avoid precipitating withdrawal)
People who are currently dependent on opioids or have opioids in their system usually cannot start Vivitrol safely. Eligibility and timing depend on individual opioid use history and clinician guidance.
How soon can people see benefits?
Some people may feel effects quickly in terms of reduced risk of opioid “euphoria” if they use opioids while on treatment. For alcohol-related relapse prevention, benefit is typically judged over weeks to months as part of ongoing recovery support.
What side effects or risks are people asking about?
Common concerns include nausea, headache, fatigue, injection-site reactions, and dizziness. A key safety issue is that Vivitrol can cause serious withdrawal if opioids are still in the body.
Does it help with cravings, or mainly prevent relapse?
Vivitrol is mainly used to help prevent relapse by reducing the reinforcing effects of opioids (and supporting alcohol abstinence strategies). How much it reduces cravings varies from person to person, and outcomes are best when combined with counseling.
If Vivitrol doesn’t work, what are the alternatives?
Clinicians may consider other medications for alcohol use disorder or opioid use disorder (for example, different classes of FDA-approved options) and non-medication supports, depending on the person’s diagnosis and treatment history.
If you tell me whether you mean help for alcohol use disorder or opioid use disorder (and whether you’re currently on any opioids), I can tailor the answer to what clinicians look for in choosing and timing Vivitrol.