The patents for Revia (naltrexone) have expired, and this medication is available as a generic product. These tablets are available in one strength (50 mg) and are made by various manufacturers, including Sandoz, Sun Pharmaceutical, and Elite Labs. The FDA has determined that these generic versions of Revia are equivalent to the brand-name medication.
Revia is made by Duramed Pharmaceuticals, Inc. The brand-name product is no longer protected by patents, and Revia is available in generic form.
Generic Revia is available in one strength and form: Naltrexone 50 mg tablets.
Generic Revia is made by several companies, including:
- Accord Healthcare, Ltd.
- Elite Labs
- Sun Pharmaceutical
- Teva Pharmaceuticals.
All generic medications must undergo certain tests to compare them to brand-name medications. The U.S. Food and Drug Administration (FDA) then looks at these tests to decide if the generics are equivalent to the brand-name medications and assigns a rating to each one.
An "AB" rating means that the FDA has determined that a generic medication is equivalent to a brand-name medication. All of the generic Revia versions currently available have an "AB" rating, meaning they should be equivalent to brand-name Revia.
However, generic medications are allowed to have different inactive ingredients than the brand-name medication. This might include fillers, dyes, or other ingredients that may cause problems for people with allergies or sensitivities.