March 28, 2017
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Monoket ®
(isosorbide mononitrate, USP) Tablets


Monoket®, an organic nitrate, is a vasodilator with effects on both arteries and veins. The empirical formula is C6H9NO6 and the molecular weight is 191.14. The chemical name for Monoket® is 1,4:3,6-Dianhydro-D-glucitol 5-nitrate and the compound has the following structural formula:

Monoket® tablets (isosorbide mononitrate) Structural Formula Illustration

Monoket®, is available in 10 mg and 20 mg tablets. Each tablet also contains as inactive ingredients: lactose, talc, colloidal silicon dioxide, starch, microcrystalline cellulose and aluminum stearate.

Last reviewed on RxList: 1/30/2017
This monograph has been modified to include the generic and brand name in many instances.

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.

Cholesterol Management

Tips to keep it under control.