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Brand Names:

Generic Name: heparin (Pronunciation: HEP a rin)

• What is heparin ()?
• What are the possible side effects of heparin ()?
• What is the most important information I should know about heparin ()?
• What should I discuss with my healthcare provider before using heparin ()?
• How should I use heparin ()?
• What happens if I miss a dose ()?
• What happens if I overdose ()?
• What should I avoid while using heparin ()?
• What other drugs will affect heparin ()?
• Where can I get more information?

What is heparin ()?

Heparin is an anticoagulant (blood thinner) that prevents the formation of blood clots.

Heparin is used to treat and prevent blood clots in the veins, arteries, or lung. Heparin is also used before surgery to reduce the risk of blood clots.

Heparin may also be used for other purposes other than those listed in this medication guide.

What are the possible side effects of heparin ()?

Heparin can cause you to have bleeding episodes while you are using it and for several weeks after you stop. Call your doctor at once if you have easy bruising or unusual bleeding, such as a nosebleed, blood in your urine or stools, black or tarry stools, or any bleeding that will not stop.

Get emergency medical help if you have any of these signs of an allergic reaction: nausea, vomiting, sweating, hives, itching, trouble breathing, swelling of your face, lips, tongue, or throat, or feeling like you might pass out..

Some people receiving a heparin injection have had a reaction to the infusion (when the medicine is injected into the vein). Tell your caregiver right away if you feel nauseated, light-headed, sweaty, or short of breath during or after a heparin injection.

Stop using heparin and call your doctor at once if you have any of these serious side effects:

• sudden numbness or weakness, especially on one side of the body;
• sudden headache, confusion, problems with vision, speech, or balance;
• pain or swelling in one or both legs;
• trouble breathing; or
• fever, chills, runny nose, or watery eyes.

Less serious side effects may include:

• mild pain, redness, warmth, or skin changes where the medicine was injected;
• mild itching of your feet; or
• bluish-colored skin.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about heparin ()?

Before using heparin, tell your doctor if you have high blood pressure, an infection involving your heart, hemophilia or other bleeding disorder, a stomach or intestinal disorder, liver disease, or if you are on your period.

Heparin can cause you to have bleeding episodes while you are using it and for several weeks after you stop. Call your doctor at once if you have easy bruising or unusual bleeding, such as a nosebleed, black or bloody tarry stools, or any bleeding that will not stop.

Certain medicines can increase your risk of bleeding while you are using heparin, such as aspirin or other NSAIDs (non-steroidal anti-inflammatory drugs) including ibuprofen (Motrin, Advil), naproxen (Aleve, Naprosyn), diclofenac (Voltaren), diflunisal (Dolobid), etodolac (Lodine), flurbiprofen (Ansaid), indomethacin (Indocin), ketoprofen (Orudis), ketorolac (Toradol), mefenamic acid (Ponstel), meloxicam (Mobic), nabumetone (Relafen), piroxicam (Feldene), and others.

Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Women over 60 years of age may be more likely to have bleeding episodes while using heparin.