At this time, generic Skelaxin (metaxalone) is available in one strength: 800 mg. It is produced by various companies; the version sold by CorePharma is exactly the same as brand-name Skelaxin -- it is simply sold in a different bottle. All generic versions are considered equivalent to the brand-name version. However, the other generic versions may contain different inactive ingredients.
Skelaxin® (metaxalone) is a prescription medication used to treat muscle spasms. It belongs to a group of medications known as skeletal muscle relaxants (hence the name "Skelaxin").
Brand-name Skelaxin is manufactured by Mallinckrodt, Inc., and is marketed and sold by King Pharmaceuticals, Inc. Generic versions of Skelaxin are now available as well.
Like brand-name Skelaxin, generic Skelaxin is available in only one strength -- Metaxalone 800 mg tablets. It is sold by various manufacturers, such as CorePharma and Sandoz. Notably, the CorePharma generic is an "authorized generic," meaning that it is exactly the same as brand-name Skelaxin in every way (even made by the same manufacturer), except that it is sold under a generic label. Essentially, it is brand-name Skelaxin tablets sold in a generic bottle.
Is Generic Metaxalone as Good as Brand-Name Skelaxin?
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 each generic a rating.
An "AB" rating means that the FDA has determined that a generic medication is equivalent to a brand-name medication. The generic metaxalone tablets currently available have an "AB" rating, meaning they should be equivalent to Skelaxin.
However, generic medications are allowed to have different inactive ingredients than the brand-name medication. In some cases, these inactive ingredients may cause problems for people with allergies or sensitivities.