Ferinject is indicated for the treatment of iron deficiency when (see Pharmacology: Pharmacodynamics under Actions): oral iron preparations are ineffective, oral iron preparations cannot be used, there is a clinical need to deliver iron rapidly.
The diagnosis of iron deficiency must be based on laboratory tests. [e.g., plasma ferritin levels, haemoglobin, haematocrit, red cell count, MCV, MCH and transferrin saturation (TSAT).]