Frequent transfusions are defined as at least 7 ml of packed (concentrated) red blood cells per kilogram body weight in a month. • Exjade is also used when deferoxamine (another medicine used to treat iron overload) cannot be used or is inadequate, in patients who suffer from other types of anaemia, in children aged from two to five years, and in patients with beta thalassaemia major who receive less frequent transfusions.