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In page Hereditary haemochromatosis:

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Where venesection is not possible, long-term administration of an iron chelator as Deferoxamine (or Desferrioxamine), Deferasirox and Deferiprone is useful. Deferoxamine is an iron-chelating compound, and excretion induced by deferoxamine is enhanced by administration of vitamin C. It cannot be used during pregnancy or breast-feeding due to risk of defects in the child.[citation needed]