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How and where is the Vivitrol injection given?

Medically reviewed by Carmen Pope, BPharm. Last updated on Dec 1, 2021.

Official answer


Vivitrol must be administered by a health care provider and is usually given every 4 weeks (once a month) as an intramuscular injection, into the muscle of your buttocks (butt). Alternating buttocks should be used for each subsequent injection.

  • Vivitrol (naltrexone) Updated 03/2021. Alkermes, Inc.

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