Before starting Vivitrol, you need to endure opioid detoxification. This means that you stop using any opioid drugs. Vivitrol is available in a vial which contains 380 mg of Vivitrol and 4 mL of a solution that helps dilute (thin) the drug. A healthcare Specialist provides you with Vivitrol as https://joseonu592nwc5.wikiexcerpt.com/user