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Details with Side Effects
DynaCirc® (isradipine) is a calcium antagonist available for oral administration in capsules containing 2.5 mg or 5 mg. The structural formula of isradipine is:
Chemically, isradipine is 3,5-Pyridinedicarboxylic acid, 4-(4-benzofurazanyl)-1,4-dihydro-2,6-dimethyl-, methyl 1-methylethyl ester. Isradipine is a yellow, fine crystalline powder which is odorless or has a faint characteristic odor. Isradipine is practically insoluble in water ( < 10 mg/L at 37°C), but is soluble in ethanol and freely soluble in acetone, chloroform and methylene chloride.
Active Ingredient: isradipine
Inactive Ingredients: colloidal silicon dioxide, D&C Red No. 7 Calcium Lake, FD&C Red No. 40 (5 mg capsule only), FD&C Yellow No. 6 Aluminum Lake, gelatin, lactose, starch (corn), titanium dioxide and other ingredients.
The 2.5 mg and 5 mg capsules may also contain: benzyl alcohol, butylparaben, edetate calcium disodium, methylparaben, propylparaben, sodium propionate.
What are the possible side effects of isradipine (Dynacirc, Dynacirc CR)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
- feeling like you might pass out;
- feeling short of breath, even with mild exertion;
- swelling in your hands and feet;
- fast or pounding heartbeats; or
- chest pain.
Less serious side effects may include:
- warmth, redness, or tingly feeling under your...
What are the precautions when taking isradipine (Dynacirc)?
Before taking isradipine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: certain structural heart problem (aortic stenosis).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, kidney disease.
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic...
Last reviewed on RxList: 4/22/2009
This monograph has been modified to include the generic and brand name in many instances.
Additional Dynacirc Information
Dynacirc - User Reviews
Dynacirc User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Get tips on handling your hypertension.