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Isradipine CR

Isradipine CR: What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to taking isradipine CR if you have:
  • Congestive heart failure (CHF)
  • An esophageal stricture or other narrowing of the digestive tract
  • Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Isradipine CR to learn more, including information on who should not take the drug.)

How Does Isradipine CR Work?

Isradipine 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. Isradipine CR is a dihydropyridine calcium channel blocker, which means that it does not usually decrease the heart rate.
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