It is presented the experience with 90 patients receiving Eritropoietin s.c. and oral iron who were in chronic haemodialysis. After basic laboratories, including iron kinetic, in all of them was stopped oral iron and started i.v. iron 60 mgs per week, but keeping the same eritropoietin doses. The results showed an increased haemoglobin level from 6.5 to 11 g/dl mean values and a decreased doses of eritropoietin between 25 to 50%. This represent an important elevation of haemoglobin levels at a significant low cost.