<prompt> Tranexaemic acid is a specific antidote ofFibrinolytic drugsHeparinBarbituratesOrganophosphates  <response>: ANTIFIBRINOLYTIC DRUGS Tranexamic acid:- It binds to the lysine binding site on plasminogen and prevents its combination with fibrin leading to fibrinolysis. It is preferred for preventioncontrol of excessive bleeding due to: Fibrinolytic drugs. Cardio-pulmonary bypass surgery. Tonsillectomy, prostatic surgery, tooth extraction in haemophiliacs. Menorrhagia, especially due to IUCD. Recurrent epistaxis, hyphema due to ocular trauma, peptic ulcer. side effects:- Nausea and diarrhoea. Thromboembolic events, disturbed colour vision and allergic reactions are infrequent. Thrombophlebitis of injected vein can occur. Ref:- kd tripathi; pg num:-628,629 