Hypertension Home > Isradipine CR for High Blood Pressure

Approved for the treatment of high blood pressure, isradipine CR (Dynacirc CR®) is a prescription drug sold in the form of "controlled-release" tablets. Because the tablets slowly release the medication over time, most people only need to take it once a day.
Isradipine CR belongs to a class of drugs known as calcium channel blockers. It works by relaxing the blood vessels, which helps to lower blood pressure.
(To learn more about controlling high blood pressure with this drug, click What Is Isradipine CR Used For?. This article offers more details on how this drug works and also describes an "off-label" use.)
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Last reviewed by: Arthur Schoenstadt, MD
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