The main ingredient of Maizling tablets is horse chestnut extract, which is mainly used for the treatment of chronic venous insufficiency, varicose veins, deep vein thrombosis, and thrombophlebitis followed by swelling, pain, spasm, numbness, fatigue, heaviness or hyperpigmentation of the lower limbs, and in severe cases, ulcers of the lower limbs, which can be given orally to patients. It can inhibit the inflammatory reaction of blood vessels and effectively reduce the swelling caused by poor venous return in the lower limbs. It can also improve the permeability of blood vessels, reduce tissue edema and promote venous reflux. It is recommended for the patients to take the tablets orally under the guidance of the physician. For some special varicose veins also have some effect, such as hemorrhoids or perianal diseases can be taken orally appropriately.