Generic Doxazosin

Several strengths of generic doxazosin are currently available, ranging from 1 mg to 8 mg tablets. All of these generic versions have been given an "AB" rating by the FDA, meaning that they should be equivalent to Cardura (the brand-name version). Several companies manufacture generic doxazosin, including Teva Pharmaceuticals, Mylan Laboratories, and Ivax Pharmaceuticals.

 

Generic Doxazosin: An Overview

Doxazosin mesylate (Cardura®) is a prescription medication that has been licensed to treat an enlarged prostate and for controlling high blood pressure.
 
Doxazosin was first manufactured under the brand name Cardura. This brand of doxazosin was manufactured by Pfizer, Inc. However, it has since come off-patent and generic doxasozin is now available.
 

Strengths of Generic Doxazosin

Generic doxazosin is available in the following strengths:
 
  • Doxazosin 1 mg tablets
  • Doxazosin 2 mg tablets
  • Doxazosin 4 mg tablets
  • Doxazosin 8 mg tablets.
     

Who Makes Generic Doxazosin?

Generic doxazosin is made by more than 10 different companies, including Teva Pharmaceuticals, Mylan Laboratories, and Ivax Pharmaceuticals.
 

Is Generic Doxazosin as Good as Cardura?

All generic medications must have 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 generic medications are equivalent to the brand-name medications and assigns each generic medication 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 doxazosin versions that are currently available have an "AB" rating, meaning that they should be equivalent to Cardura.
 
However, generic medications are allowed to have different inactive ingredients than the brand-name version. This might include different fillers, dyes, or other ingredients that could cause problems for people with allergies or sensitivities to these items.
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;