Fatigued women ( Piper Fatigue Scale -LSB- PFS -RSB- score @ ) with iron deficiency ( ferritin < @ g/L and transferrin saturation < @ % , or ferritin < @ g/L ) and normal or borderline hemoglobin ( @ g/L ) were enrolled in @ sites in Austria , Germany , Sweden and Switzerland , blinded to the study drug and randomized ( computer-generated randomization sequence ) to a single FCM ( @ mg iron ) or saline ( placebo ) infusion .