April 28, 2017
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Imdur

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Imdur Tablets

IMDUR®
(isosorbide mononitrate) Tablets

DRUG DESCRIPTION

Isosorbide mononitrate (ISMN), an organic nitrate and the major biologically active metabolite of isosorbide dinitrate (ISDN), is a vasodilator with effects on both arteries and veins.

IMDUR® Tablets, for oral administration, contain either 30 mg, 60 mg or 120 mg of isosorbide mononitrate in an extended-release formulation. In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, hydrogenated castor oil, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose and talc.

The molecular formula of ISMN is C6H9NO6 and the molecular weight is 191.14. The chemical name for ISMN is 1,4:3,6-dianhydro-,D-glucitol 5-nitrate; the compound has the following structural formula:

IMDUR® (isosorbide mononitrate) Structural Formula Illustration

ISMN is a white, crystalline, odorless compound which is stable in air and in solution, has a melting point of about 90°C, and an optical rotation of +144° (2% in water, 20°C).

Isosorbide mononitrate is freely soluble in water, ethanol, methanol, chloroform, ethyl acetate, and dichloromethane.

Last reviewed on RxList: 2/2/2017
This monograph has been modified to include the generic and brand name in many instances.

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