Heparin also called unfractionated heparin, it refers to a medicine that is used as a blood thinner (anticoagulant). It is mainly used in the prevention and treatment of deep vein thrombosis, arterial thromboembolism, and pulmonary embolism. It is also used in the treatment of unstable angina and heart attacks.
However, one of the possible issue with the heparin therapy is hemorrhage, that is, frequent loss of blood inside the body, also known as internal bleeding. In such a case, one has to discontinue the use of heparin.