Iron supplement polysaccharide iron complex capsules are least harmful to the stomach. There are various kinds of iron supplement preparations, including ferrous sulfate, ferrous succinate, polysaccharide iron complex, etc. Generally speaking, iron supplement preparations are irritating to the stomach and have certain gastrointestinal adverse reactions. Among the above oral iron supplement preparations, polysaccharide iron complex capsule is the least irritating to the stomach. Polysaccharide Iron Complex Capsule is used for the treatment of simple iron deficiency anemia. Gastrointestinal irritation or constipation is rarely observed. This drug is contraindicated in hemochromatosis and ferrous hemoflavinosis. It is contraindicated in case of allergy to any of the ingredients of this drug. Iron supplements are best taken in combination with vitamin C to promote iron absorption, as well as after meals to avoid direct irritation of the stomach. Iron supplements should be taken after meals to avoid direct irritation of the stomach.