Genteknologisk fremstillet epoetin alfa er glykosyleret og identisk med erythropoietin, der er isoleret fra anæmiske patienters urin med hensyn til aminosyre - og kulhydratsammensætning.
Epoetin alfa obtained by gene technology is glycosylated and is identical in its amino acid and carbohydrate composition to endogenous human erythropoietin that has been isolated from the urine of anaemic patients.