Tranexamic acid, a synthetic antifibrinolytic agent that binds to the lysine binding site of plasminogen and blocks the binding of plasminogen to the fibrin surface. Thus plasminogen activation is prevented and fibrinolysis is delayed. It has been used to reduce blood loss during coronary revascularization, orthotopic liver transplantation4, scoliosis correction surgery and other orthopedic procedures. The use of tranexamic acid intraoperatively has been shown to reduce blood loss by 25 - 40% in various studies. The primary concern when administering an antifibrinolytic drug is the potential increased incidence of thromboembolic events. A common misconception is that synthetic antifibrinolytic drugs increase blood clotting. The drugs do not alter blood clotting, but rather slow dissolution of blood clots. There is no data on the utility of tranexamic acid to reduce blood loss in head & neck cancer surgery.