Dynacirc CR

Dynacirc CR is a medicine that is often prescribed to treat high blood pressure. By helping to relax the blood vessels, the medication allows better blood flow and decreases blood pressure. Dynacirc CR tablets, which come in controlled-release form, are typically taken once a day. While most people tolerate the drug well, potential side effects include dizziness, fatigue, and abdominal pain.

What Is Dynacirc CR?

Dynacirc CR® (isradipine CR) is a prescription medication used to treat high blood pressure (hypertension). The tablets are "controlled-release," which means they slowly release the medication over time.
 
(Click Dynacirc CR Uses for more information, including possible off-label uses.)
 

Who Makes It?

Dynacirc CR was made by Reliant Pharmaceuticals.
 

How Does Dynacirc CR Work?

Dynacirc CR is part of a class of drugs called calcium channel blockers. It helps slow down the rate at which calcium moves into your heart and blood vessel walls. This, in turn, helps to relax the vessels, which allows better blood flow and makes it easier for the heart to pump blood.
 
There are two basic types of calcium channel blockers: dihydropyridine and non-dihydropyridine. The most important difference between the two is that non-dihydropyridine calcium channel blockers can slow down the heart rate, while dihydropyridine calcium channel blockers do not. Dynacirc CR is a dihydropyridine calcium channel blocker, which means that it does not usually decrease the heart rate.
 

Effects of Dynacirc CR

In clinical studies, Dynacirc CR was shown to decrease blood pressure. Systolic blood pressure was lowered 5.2 to 15.6 mmHg, on average, while diastolic blood pressure was lowered by 2.8 to 11.8 mmHg, on average.
 
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Dynacirc CR Drug Information

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