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Calan is commonly prescribed to treat several cardiovascular conditions, such as chest pain, high blood pressure, and certain irregular heart rhythms. The medication comes in tablet form and is typically taken three or four times a day. Calan causes the blood vessels to relax, which improves blood flow and makes it easier for the heart to pump blood. Possible side effects include dizziness, nausea, and headaches.

What Is Calan?

Calan® (verapamil hydrochloride) is a prescription medication used to treat various conditions of the heart and blood vessels.
 

Who Makes It?

Calan is made by Pfizer, Inc. Generic versions are made by various manufacturers.
 

What Is Calan Used For?

Calan has been licensed for several uses. These uses include:
 
 
 
  • Certain irregular heart rhythms (arrhythmias), including:
 
 
(Click Calan Uses for more information, including possible off-label uses.)
 
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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