Logo

Indications - Isosorbide Mononitrate is indicated for the prevention and treatment of angina pectoris due to coronary artery disease. The onset of action of oral isosorbide mononitrate is not sufficiently rapid for this product to be useful in aborting an acute anginal episode.

Dosage & Administration - Tablet: The usual oral dose is 1 tablet (20 mg) 2 times daily, first dose in the morning and another 7 hours apart. Although maintenance doses ranging from 20 mg to 120 mg (1-6 tablets), a dose of 10 mg (1/2 tablet) is suitable when lower dosage is used at the starting of treatment or as directed by a registered physician. Sustained Release Capsule: The usual oral dose is 1 capsule (50 mg) daily or as directed by the registered physician.

Side Effects - Headache, feelings of dizziness, hypotension may occur sometimes.

Contraindications - Isosorbide mononitrate is contraindicated in patients who are allergic to it. Do not use Isosorbide Mononitrate in patients who are taking certain drugs for erectile dysfunction (phosphodiesterase inhibitors), such as sildenafil, tadalafil, or vardenafil. Concomitant use can cause severe hypotension, syncope, or myocardial ischemia. Do not use Isosorbide Mononitrate in patients who are taking the soluble guanylate cyclase stimulator riociguat. Concomitant use can cause hypotension.

Others - Pregnancy & Lactation Pregnancy Category B: Reproduction studies performed in rats and rabbits at doses of up to 540 and 810 mg/kg/day, respectively, have revealed no evidence of harm to the fetus due to isosorbide mononitrate. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, Isosorbide Mononitrate should be used during pregnancy only if clearly needed. Nursing Mothers: It is not known whether isosorbide mononitrate is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when isosorbide mononitrate is administered to a nursing woman.