Generic Calan SR

Calan SR is available in a generic form and comes in three strengths, verapamil extended-release 120 mg, 180 mg, and 240 mg tablets. Each generic medication must undergo certain tests and then is assigned a rating by the FDA to determine whether the generic is as good as the brand-name medication. According to FDA representatives, generic Calan SR tablets are equivalent to the brand-name medication.

 

An Overview of Generic Calan SR

Calan SR® (verapamil hydrochloride) is a prescription medicine used for the treatment of high blood pressure (hypertension). It is part of a group of medications called calcium channel blockers.
 
Calan SR was first manufactured by Pfizer, Inc. However, it has since come off patent and is available as a generic.
 

Strengths of Generic Calan SR

Generic Calan SR tablets are available in the following strengths:
 
  • Verapamil extended-release 120 mg tablets
  • Verapamil extended-release 180 mg tablets
  • Verapamil extended-release 240 mg tablets.
     

Who Makes Generic Calan SR?

Generic Calan SR is made by the following manufacturers:
 
  • Watson Pharmaceuticals
  • Ivax Pharmaceuticals
  • Mylan Pharmaceuticals
  • Par Pharmaceuticals.
     

Is Generic Verapamil as Good as Calan SR?

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.
 
The FDA lists the ratings for generic equivalency in the "Orange Book." The current edition of the Orange Book does not list Calan SR, which makes it difficult to determine which generic medications are equivalent to Calan SR. However, in correspondence with the FDA about this matter, FDA representatives have stated that the generic verapamil extended-release tablets (not capsules) that are currently available are equivalent to Calan SR.
 
It is important to keep in mind that 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.
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;