Embodiments of the invention provide patches for the transdermal delivery of iron-containing compositions to an individual suffering from an iron deficiency. Many embodiments provide an iontophoretic patch for the transdermal delivery of a therapeutically effective amount of iron. The patch comprises an electrode and a reservoir containing a composition comprising ionic iron for the delivery of the therapeutically effective amount of iron. Various embodiments provide methods of using embodiments of the iontophoretic patch for delivering a therapeutically effective amount of iron to an individual suffering from one more forms of iron deficiency including iron deficiency anemia. Such methods can be used for treating and/or preventing the iron deficiency. The amount of delivered iron can be adjusted depending upon various treatment parameters such as patient weight and type and amount of iron deficiency.