What Are The Side Effects Of Iron Supplements?

Dark Stools

Dark stools are a very common side effect of oral iron supplements. The stool may appear dark green or black, and these discolorations are caused by unabsorbed iron. Generally, dark stools associated with the use of oral iron supplements are considered harmless. They may resolve as the patient's body adjusts to the medication, and medical treatment is not normally necessary. If dark stools persist for a prolonged period or if they become bothersome, the patient should mention them to their primary care physician. Black stools accompanied by stomach pain, sharp cramps in the abdominal area, or red streaks in the stool may indicate a potentially serious medical issue. Patients with these symptoms should contact their healthcare provider immediately.