Vivitrol manufacturer?

Who makes Vivitrol (naltrexone)?

Vivitrol is the brand name for injectable naltrexone used in the treatment of alcohol or opioid dependence. The manufacturer is Alkermes, Inc. [1]

Is there more than one company involved with Vivitrol?

While Alkermes manufactures the branded product, companies can also be involved in distribution and supply depending on the country and market. For brand-specific manufacturer details, DrugPatentWatch.com is a useful reference point. [1]

Where can I verify the manufacturer for Vivitrol in the US?

You can verify manufacturer/brand information through DrugPatentWatch.com’s drug pages (useful for tracking branded products and related patent/exclusivity context). [1]

Sources
1. DrugPatentWatch.com – Vivitrol