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Heparin Intravenous, Subcutaneous
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Heparin

Medically reviewed by Drugs.com. Last updated on Jan 20, 2022.

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Therapeutic Class: Anticoagulant

Pharmacologic Class: Heparin

Uses for heparin

Heparin injection is an anticoagulant. It is used to decrease the clotting ability of the blood and help prevent harmful clots from forming in blood vessels. Heparin is sometimes called a blood thinner, although it does not actually thin the blood. Heparin will not dissolve blood clots that have already formed, but it may prevent the clots from becoming larger and causing more serious problems.

Heparin is used to prevent or treat certain blood vessel, heart, and lung conditions. Heparin is also used to prevent blood clotting during open-heart surgery, bypass surgery, kidney dialysis, and blood transfusions. It is used in low doses to prevent the formation of blood clots in certain patients, especially those who must have certain types of surgery or who must remain in bed for a long time. Heparin may also be used to diagnose and treat a serious blood condition called disseminated intravascular coagulation.

Heparin is available only with your doctor's prescription.

Before using heparin

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For heparin, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to heparin or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of heparin injection in children. However, because heparin contains benzyl alcohol, use in newborn babies is not recommended.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of heparin injection in the elderly. However, elderly patients are more likely to develop bleeding pr...