The standard Vivitrol dosage is the same for everyone -- one injection of 380 mg every 4 weeks. This prescription medicine comes as an injection that your healthcare provider will administer into your gluteal muscle (buttocks). You should not receive Vivitrol if you have taken an opioid or opioid-containing medication in the past 7 to 10 days.
There is only one standard dose of Vivitrol® (naltrexone injection), regardless of your age, weight, or the reason you are taking it. As is always the case, do not adjust the amount unless your healthcare provider specifically tells you to do so.
The usual recommended dose of Vivitrol for treating alcohol or opioid dependence is 380 mg every 4 weeks.
The active ingredient in Vivitrol is naltrexone. Naltrexone also comes in the form of a tablet (Revia®), which is taken by mouth. If you have been taking naltrexone tablets, talk to your healthcare provider about how long you should wait between taking your last naltrexone tablet dose and starting Vivitrol.
Some considerations to keep in mind during treatment with Vivitrol include the following:
- Vivitrol is given as an injection into a muscle (an intramuscular, or IM, injection). The injections are usually given once a month.
- The injections must be administered by a healthcare provider, using a special needle that comes with the medication.
- Vivitrol injections are given into the gluteal muscle (buttocks muscle). Your healthcare provider will alternate which buttock the injection is given into each month.
- You should not receive Vivitrol if you have taken an opioid or opioid-containing medication in the past 7 to 10 days.
- You should carry a medical ID card or wear a medical bracelet stating you take Vivitrol. This is important so you will receive appropriate care in the event of an emergency.
- For the medication to work properly, it must be used as prescribed. Do not stop receiving your injections without your healthcare provider's approval.
- If you are unsure about anything related to your Vivitrol dosage, please talk with your healthcare provider, nurse, or pharmacist.