Folic acid -- has it a role in the treatment of severe iron deficiency anaemia in pregnancy?

Forty-one pregnant patients with severe iron deficiency anaemia were treated with either intravenous iron-dextran (Imferon; Fisons) or intravenous iron plus folic acid. There was no difference in the rate of response or the eventual total response in the two groups, suggesting that iron therapy does not unmask or produce a relative folic acid deficiency.