Heparin (By injection)
Anticoagulant (About this – PubMed Health)
Uses of This Medicine
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. This medicine 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.
This medicine is available only with your doctor’s prescription.
Other uses (PubMed Health)
How To Use
A nurse or other trained health professional will give you this medicine.
You may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to.
You will be shown the body areas where this shot can be given. Use a different body area each time you give yourself a shot. Keep track of where you give each shot to make sure you rotate body areas.
Use a new needle and syringe each time you inject your medicine.
Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
If you store this medicine at home, keep it at room temperature, away from heat, moisture, and direct light.
Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Some medicines and foods can affect how heparin works. Tell your doctor if you are using any of the following:Digitalis, nicotine, nitrates, or nitroglycerin Allergy medicine, including diphenhydramine Blood thinner, including dicumarol or warfarin NSAID or similar medicine that might cause bleeding, including aspirin, diclofenac, ibuprofen, indomethacin, naproxen, phenylbutazone, or celecoxib
When Not To Use
This medicine is not right for everyone. You should not receive it if you had an allergic reaction to heparin, corn, or pork products. Tell your doctor if you have received heparin before and it caused immune system problems (HIT or HITT).
Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease, kidney disease, high blood pressure, a bleeding disorder, ulcers, diabetes, or cancer. Tell your doctor if you are allergic to sulfites.
This medicine may cause the following problems:Serious bleeding Blood clots, which may lead to stroke or heart attack Heparin-induced thrombocytopenia (HIT or HITT), an immune system reaction that could happen several weeks after treatment ends
This medicine lowers the number of certain blood cells, so you may bleed or bruise more easily. Be careful to avoid injuries.
Tell any doctor or dentist who treats you that you are using this medicine. You may need to stop using this medicine several days before you have surgery or medical tests.
Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
Keep all medicine out of the reach of children. Never share your medicine with anyone.
Possible side effects
Summary More details
Call your doctor right away if you notice any of these side effects:
Dizziness, lightheadedness, or fainting
Increased menstrual bleeding
Unusual bleeding, bruising, or weakness
If you notice other side effects that you think are caused by this medicine, tell your doctor.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
More side effects of this drug
Brand names include
BD PosiFlush Heparin Lock, Hepflush-10, Monoject Prefill Advanced Heparin Lock Flush, Monoject Prefill Heparin Lock Flush, Novaplus Heparin Sodium, PosiFlush Heparin, PremierPro Rx heparin sodium, Vasceze Heparin Lock Flush
There may be other brand names for this medicine.