Thursday, November 19, 2009

Tranexamic acid for menorrhagia.....

Tranexamic acid (marketed as Cyklokapron in the U.S. and as Transamin in Asia, and Espercil in South America) is often prescribed for excessive bleeding. It is an antifibrinolytic that competitively inhibits the activation of plasminogen to plasmin, a molecule responsible for the degradation of fibrin. Fibrin is the basic framework for the formation of a blood clot in hemostasis. It has roughly 8 times the antifibrinolytic activity of an older analogue, ε-aminocaproic acid.

The U.S. Food and Drug Administration on 16th Nov., 2009 approved Lysteda tablets (tranexamic acid), the first non-hormonal product cleared to treat heavy menstrual bleeding (menorrhagia). Lysteda works by stabilizing a protein that helps blood to clot. Tranexamic acid was first approved by the FDA in 1986 as an injection, under the brand name Cyklokapron, and is used to reduce or prevent bleeding during and following tooth extraction in patients with hemophilia, a hereditary bleeding disorder caused by the lack of a blood clotting factor.

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