Evaparin Injection is an anti-coagulant which helps prevent the formation of harmful blood clots in the legs, lungs, and heart. It is available as an injection that is used under the skin. It can increase the risk of bleeding, so be careful while shaving, cutting nails, using sharp objects, or engaging in contact sports (e.g. football, wrestling). Let your doctor know if you see blood in your vomits, urine, or stool (black or tarry). Unlike other anti-coagulants, regular blood test (PT-INR) is not required while taking this medicine. It is important that this medicine is taken strictly according to the doctors advice and is not stopped abruptly.