Total hip or knee arthroplasty is associated with the risk of moderate to significant blood loss. Techniques such as the use of antifibrinolytics or desmopressin, or normovolaemic haemodilution have been used to reduce the need for allogeneic blood transfusion. Tranexamic acid (TXA) has been used to reduce blood loss and transfusion requirement for total hip and knee arthroplasty, with good results. Approximately one-third of patients undergoing total joint replacement surgery require one to three units of blood postoperatively. Tranexamic acid is a synthetic antifibrinolytic agent that has been successfully used intravenously to control bleeding after total joint replacement. The use of TXA has been shown to significantly reduce the need for blood products during total joint replacement1-4.