1 INDICATIONS AND USAGE Ferumoxytol is indicated for the treatment of iron deficiency anemia (IDA) in adult patients: • who have intolerance to oral iron or have had unsatisfactory response to oral iron or • who have chronic kidney disease (CKD). Ferumoxytol is an iron replacement product indicated for the treatment of iron deficiency anemia (IDA) in adult patients: • who have intolerance to oral iron or have had unsatisfactory response to oral iron ( 1 ) or • who have chronic kidney disease (CKD). ( 1 )