<prompt> The difference between iron sorbitol-citric acid and iron dextran is that the formerCannot be injected i.v.Is not bound to transferrin in plasmaIs not excreted in urineProduces fewer side effects  <response>: Ref: KDT 6e p586 Iron sorbitol citrate should not be used i.v. because it may rapidly saturate the transferrin receptors and can result in high concentrations of free iron. 