Tranexamic Acid Injection 1000 mg Per 10 mL x 10 Vials (RX)Tranexamic Acid Injection 1000 mg Tranexamic acid injection is a prescription antifibrinolytic drug used to control or prevent severe bleeding. It is a synthetic derivative of the amino acid lysine that works by stabilizing blood clots. Specifically, tranexamic acid binds to plasminogen (the precursor of the clot dissolving enzyme plasmin), preventing plasmin from breaking down fibrin clots. In effect, it improves blood clotting by slowing fibrin