General Info:

isosorbide dinitrate (Isordil) is in a class of drugs called nitrates. isosorbide dinitrate (Isordil) dilates (widens or relaxes) blood vessels (arteries and veins). When blood vessels are dilated, it is easier for the heart to pump. Also, more blood, which is rich in oxygen, can flow to the heart.

isosorbide dinitrate (Isordil) is used to treat attacks of angina (sublingual and chewable tablets) and to prevent attacks of angina from occurring (capsules and tablets).

You may develop a headache because of this medicine, but do not stop taking it. Take aspirin or acetaminophen to treat the headache. Ask your doctor which is best for you. This side effect usually goes away with continued isosorbide dinitrate (Isordil) treatment.

Do not stop taking isosorbide dinitrate (Isordil) suddenly. Stopping suddenly could cause a severe anginal attack.