Preparation of a Refludan solution with a concentration of 2 mg/ ml For continuous intravenous infusion, a solution with a concentration of 2 mg/ ml is needed: – Reconstitute two vials (each containing 50 mg of lepirudin) with 1 ml each using either water for injections or sodium chloride 9 mg/ ml (0.9%) solution. – The final concentration of 2 mg/ ml is obtained by transfer of both solutions into one sterile, single-use perfusor syringe (50 ml capacity) and further dilution to a total volume of 50 ml using sodium chloride 9 mg/ ml (0.9%) or glucose 5% solution. – The infusion speed of the perfusor automate is to be set in a body weight-dependent fashion. – The perfusor syringe must be changed at least every 12 hours after the start of the infusion.