A Clearinghouse for Information about Blood Clots (DVT/)PE) and Clotting Disorders (thrombophilia) provided as a public service by the University of North Carolina Blood Research Center

Category: Heparin and Low Molecular Weight Heparins

  • Injection of Blood Thinners under the Skin: Making it Easier – Insuflon Ports

    Having to take shots of a blood thinner injected under the skin (subcutaneously = s.c.) once or twice daily for prolonged periods of time can be bothersome and uncomfortable. Use of a once weekly exchanged s.c. port, called Insuflon, can make it easier for a number of patients.

  • Purple Toe Syndrome

    Warfarin can, in rare instances, cause violaceous painful discoloration of the toes and the sides of the feet, referred to as the “purple toe syndrome” 1 – see photograph below. Occasionally, the hands can also be involved and a net-like skin rash on abdomen and legs (= livedo reticularis) can occur. This typically happens within the…

  • Low Molecular Weight Heparins – Osteoporosis?

    Occasionally, a patient is treated with long-term low molecular weight heparin (LMWH) (enoxaparin = Lovenox®; Dalteparin = Fragmin®; Tinzaparin = Innohep®) for months or years. LMWH may be given because the patient (a) tolerated warfarin poorly (widely fluctuating INRs; significant side-effects, such as marked hair loss or fatigue), (b) had a recurrent clot which occured on warfarin with…

  • HIT = Heparin-induced Thrombocytopenia

    What Is HIT? Heparin-induced thrombocytopenia (HIT) is a serious side effect that may occur when you are being treated with heparin. It may lead to low blood platelet counts and to life-threatening blood clots.