Take 1-2 capsules once a day; to avoid stimulation of the gastrointestinal tract, it is recommended to take after or with meals. Warm reminder: 1.Taken with phosphates, tetracycline drugs, can hinder the absorption of iron. 2, do not drink tea, coffee, and consume food containing tannic acid (such as: persimmons, grapes, plums, etc.) during taking the drug, and milk, etc. interval of 2-3 hours, easy to form a metallic complex, so as to avoid affecting the absorption of iron. 3, eat more foods rich in vitamin C (such as: kiwi, dates, etc.) to promote the absorption of iron, and more iron-rich foods (animal liver, animal blood, kelp, nori, etc.). 4.Iron-deficiency anemia should be diagnosed when taking the drug, and blood and serum iron levels should be rechecked regularly during taking the drug. 5.Constipation (prevented by consuming more celery, black fungus, beans, etc.) and black stool (normal phenomenon, does not affect the medication, and can be relieved after 2-3 days of stopping the medication) may occur during the medication. It is recommended to take the medication regularly, regulate the diet, review the index regularly and keep a happy mood.