Generic Mysoline

As all of the patents for Mysoline have expired, there are several generic versions of the medication available at this time. The FDA has assigned the generic versions of Mysoline an "AB" rating, meaning generic Mysoline should be equivalent to the brand-name medication. However, generic Mysoline may contain different inactive ingredients that may cause problems in people with allergies.

 

Generic Mysoline: An Overview

Mysoline® (primidone) is a prescription epilepsy medication approved to treat grand mal seizures and partial seizures. It is closely related to a class of medications called barbiturates. In fact, many people consider Mysoline to be a barbiturate.
 
Currently, Mysoline is manufactured by Xcel Pharmaceuticals. All of the patents for Mysoline have expired, and it is currently available in several generic versions.
 

Strengths of Generic Mysoline

Generic Mysoline tablets are available in two strengths:
 
  • Primidone 50 mg
  • Primidone 250 mg.
     

Who Makes Generic Mysoline?

Generic Mysoline is made by the following manufacturers:
 
  • Akyma Pharmaceuticals
  • Lannett Company
  • Major Pharmaceuticals
  • Mutual Pharmaceuticals
  • Qualitest Pharmaceuticals
  • Watson Pharmaceuticals
  • West-ward Pharmaceuticals.
     

Is Generic Primidone as Good as Mysoline?

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. All of the generic primidone versions currently available have an "AB" rating, meaning they should be equivalent to Mysoline.
 
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 in people with allergies or sensitivities.
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;