A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Heparin is an anticoagulant (blood thinner) that prevents the formation of blood clots. Heparin is used to treat and prevent blood clots caused by certain medical conditions or medical procedures. It is also used before surgery to reduce the risk of blood clots. Do not use heparin injection to flush (clean out) an intravenous (IV) catheter. A separate product is available to use as catheter lock flush. Using the wrong type of heparin to flush a catheter can result in fatal bleeding.
Heparin is injected under the skin or as an infusion into a vein. A healthcare provider will give your first dose and may teach you how to properly use the medication by yourself. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed. Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you don't understand all instructions. Prepare an injection only when you are ready to give it. Do not use the medicine if it has changed colors or has particles in it. Call your pharmacist for new medicine. Do not use a prefilled syringe when giving this medicine to a child. The prefilled syringe contains more than a child's dose of heparin.
This medication is available as 100 unit/mL and 1000 unit/mL solutions for injection.
Do not use heparin injection to flush (clean out) an intravenous (IV) catheter, or fatal bleeding could result. A separate product is available to use as catheter lock flush. You should not use heparin if you have uncontrolled bleeding or a severe lack of platelets in your blood. Do not use this medicine if you have ever been diagnosed with “heparin-induced thrombocytopenia,” or low platelets caused by heparin or pentosan polysulfate. Heparin increases your risk of bleeding, which can be severe or life-threatening. You will need frequent tests to measure your blood-clotting time. Call your doctor or seek emergency medical attention if you have unusual bleeding or bruising, severe stomach or back pain, unusual tiredness, a nosebleed, blood in your urine or stools, coughing up blood, or any bleeding that will not stop. Heparin can cause you to have bleeding episodes while you are using it and for several weeks after you stop. Interactions Ask your doctor before taking a nonsteroidal anti-inflammatory drug (NSAID) such as aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others. Using an NSAID with heparin may cause you to bruise or bleed easily. Tell your doctor about all your other medicines, especially: a blood thinner - warfarin, Coumadin, Jantoven; digitalis; tetracyclines; nicotine; or antihistamines. This list is not complete and many other drugs may interact with heparin. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
Get emergency medical help if you have signs of an allergic reaction to heparin: nausea, vomiting, sweating, hives, itching, trouble breathing, swelling of your face, lips, tongue, or throat, or feeling like you might pass out. Heparin may cause you to bleed more easily, which can be severe or life-threatening. You may also have bleeding on the inside of your body. Seek emergency medical attention if you have: skin warmth or discoloration; chest pain, irregular heartbeats; shortness of breath, dizziness, anxiety, sweating; any unusual bleeding or bruising; severe pain or swelling in your stomach, lower back, or groin; dark or blue-colored skin on your hands or feet; nausea, vomiting, loss of appetite; unusual tiredness; any bleeding that will not stop; or nosebleed, blood in your urine or stools, black or tarry stools, or coughing up blood or vomit that looks like coffee grounds. Heparin can cause you to have bleeding episodes while you are using it and for several weeks after you stop. Bleeding may be more likely in older adults, especially women over 60 years of age Stop using this medicine and call your doctor at once if you have: skin changes where the medicine was injected; fever, chills, runny nose, or watery eyes; easy bruising, unusual bleeding, purple or red spots under your skin; or signs of a blood clot - sudden numbness or weakness, problems with vision or speech, swelling or redness in an arm or leg. Common heparin side effects may include: unusual bleeding or bruising; uncontrolled bleeding; allergic reactions; or abnormal liver function tests. 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.