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Norvasc

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Norvasc

NORVASC®
(amlodipine besylate)

DRUG DESCRIPTION

NORVASC is the besylate salt of amlodipine, a long-acting calcium channel blocker.

Amlodipine besylate is chemically described as 3-Ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl]- 4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C20H25CIN2O5•C6H6O3S, and its structural formula is:

NORVASC®  (amlodipine besylate)  Structural Formula Illustration

Amlodipine besylate is a white crystalline powder with a molecular weight of 567.1. It is slightly soluble in water and sparingly soluble in ethanol. NORVASC (amlodipine besylate) Tablets are formulated as white tablets equivalent to 2.5, 5, and 10 mg of amlodipine for oral administration. In addition to the active ingredient, amlodipine besylate, each tablet contains the following inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate.

What are the possible side effects of amlodipine (Norvasc)?

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 a serious side effect such as:

  • feeling like you might pass out;
  • swelling in your hands, ankles, or feet;
  • pounding heartbeats or fluttering in your chest; or
  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling.

Less serious side effects may...

Read All Potential Side Effects and See Pictures of Norvasc »

What are the precautions when taking amlodipine besylate (Norvasc)?

Before taking amlodipine, tell your doctor or pharmacist if you are allergic to it; or to other dihydropyridine calcium channel blockers (such as nisoldipine, nifedipine) 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.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: a certain structural heart problem (aortic stenosis), very low blood pressure, liver 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 beverages.

Before having surgery, tell your doctor or...

Read All Potential Precautions of Norvasc »

Last reviewed on RxList: 1/22/2013
This monograph has been modified to include the generic and brand name in many instances.

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Norvasc - User Reviews

Norvasc User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Norvasc sorted by most helpful. Patient Discussions FAQs

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.


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