Hypersensitivity to the active substance, to CosmoFer or any of its excipients (see Excipients/Inactive Ingredients under Description).
Known serious hypersensitivity to other parenteral iron products.
Non-iron deficiency anaemia (e.g. haemolytic anaemia).
Iron overload or disturbances in utilisation of iron (e.g. haemochromatosis, haemosiderosis).
Decompensated liver cirrhosis and hepatitis.
Acute or chronic infection, because parenteral iron administration may exacerbate bacterial or viral infections.
Acute renal failure.