Indications: Treatment of acute deep venous thrombosis; prevention of thrombosis in extra-corporeal circulation during haemodialysis and haemofiltration in connection with acute renal failure or chronic renal insufficiency; treatment of unstable coronary artery disease, i.e. unstable angina and non-Q-wave myocardial infarction. Prophylaxis against thromboembolic complications in the peri- or postoperative period of surgery.