The dosing guidelines for Vivitrol® (naltrexone injection) are the same for everyone, regardless of age, weight, or reason for receiving this drug.
Vivitrol is injected by a healthcare provider into the gluteal muscle once every four weeks. The usual recommended dosage of Vivitrol for treating alcohol or opioid dependence is 380 mg every 4 weeks. You should not receive Vivitrol if you have taken an opioid or opioid-containing medication in the past 7 to 10 days.
If you are unsure about anything related to your dosage or Vivitrol dosing in general, please talk with your doctor, nurse, or pharmacist.
(Click Vivitrol Dosage for more information on when and how this drug is given.)