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Isordil

No Prescription

Isordil is prescribed to relieve or prevent angina pectoris (suffocating chest pain). Angina pectoris occurs when the arteries and veins become constricted and sufficient oxygen does not reach the heart. Isordil dilates the blood vessels by relaxing the muscles in their walls. Oxygen flow improves as the vessels relax, and chest pain subsides.

In swallowed capsules or tablets, Isordil helps to increase the amount of exercise you can do before chest pain begins.

In chewable or sublingual (held under the tongue) tablets, Isordil can help relieve chest pain that has already started or prevent pain expected from a strenuous activity such as walking up a hill or climbing stairs.

Side Effects

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Isordil.

Headache is the most common side effect; usually, standard headache treatments with over-the-counter pain products will relieve the pain. The headaches associated with Isordil usually subside within 2 weeks after treatment with the drug begins. Do not change your dose to avoid the headache. At a dose that eliminates headaches, the drug may not be as effective against angina.

Dosage

Because you can develop a tolerance to this drug, your doctor may schedule a daily period of time when you do not take any drug.

ADULTS

The usual sublingual starting dose for the treatment of angina pectoris is 2.5 mg to 5 mg. Your doctor will increase this initial dose gradually until the pain subsides or side effects prove bothersome.

The usual sublingual starting dose for the prevention of an impending attack of angina pectoris is usually 5 or 10 mg every 2 to 3 hours.

To prevent chronic stable angina pectoris, the usual starting dose for swallowed, immediately released Isordil is 5 to 20 mg. Your doctor may increase this initial dose to 10 to 40 mg every 6 hours.

To prevent chronic stable angina pectoris with controlled-release Isordil, the usual initial dose is 40 mg. Your doctor may increase this dose from 40 to 80 mg given every 8 to 12 hours.

CHILDREN

The safety and effectiveness of Isordil have not been established for children.

(c) 2017