How Does The Vivitrol Shot Work?

Updated February 9, 2026

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Authored By:

Karena Mathis

Edited By

Amy Leifeste

Medically Reviewed By

Sean O'Neill
MS, LMFT 112879

Explore treatment options today. For general drug info, contact your doctor.

How Does The Vivitrol Shot Work?

Updated February 9, 2026

Authored By:

Karena Mathis

Edited By

Amy Leifeste

Explore treatment options today. For general drug info, contact your doctor.

What is a Vivitrol Shot?

The Vivitrol shot is an injectable form of naltrexone that is used in medication-assisted treatment (MAT) to treat addictions to alcohol or opioids.

Vivitrol Shot FAQs



Does vivitrol work?

Vivitrol, also known as naltrexone, can be effective in certain cases. It is used to treat alcohol and opioid dependence by blocking the euphoric effects of these substances. However, its success depends on individual circumstances, and it should always be used as part of a comprehensive treatment plan that includes counseling and support.



How long does Vivitrol shot last?

The Vivitrol shot, also known as naltrexone, typically lasts for about 28 to 30 days in the body. This extended-release formulation allows for monthly injections, providing continuous support for individuals seeking treatment for alcohol or opioid dependence.



How does Vivitrol work for alcohol?

Vivitrol, also known as naltrexone, works for alcohol dependence by blocking the pleasurable effects of alcohol on the brain. It binds to certain receptors in the brain, reducing alcohol cravings and the desire to drink, helping individuals to maintain abstinence and support their recovery from alcohol addiction.

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