β-Thalassemia (β-thal) is a type of hereditary anemia affecting hemoglobin (Hb) synthesis causing severe chronic anemia in homozygous patients. Regular blood transfusions are the mainstay treatment for this type of anemia. In turn, this leads to iron overload which is responsible for the formation of reactive oxygen species (ROS), oxidative stress and organ damage. Deferoxamine (DFO) is the standard of treatment for iron overload but regular painful subcutaneous administration of this medication prevents optimal compliance. Oral chelators, such as deferasirox (DFX) and deferiprone (DFP), are also effective and safe. Deferiprone is most effective in combination therapy with DFO rather than monotherapy; however, DFX is very expensive and the cost is a significant new burden for patients. Recently, researchers have proposed an iron chelating effect for silymarin that is a flavonoid extract from the milk thistle plant. This extract has different properties and has long been used for its antioxidant and hepatoprotective effects. In this review we assess different aspects of silymarin's potential effects and compare them to the profile of thalassemic patients.

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