How long does it take to treat varicose veins with MaiZhiLing depends on the condition, the milder ones usually have effect in 2~4 weeks, and the more serious ones usually have effect in 4~8 weeks, and a course of treatment in twenty days is usually needed for 1~2 courses of treatment. The main ingredient of Mai Zhi Ling Tablets is horse chestnut extract, which is mainly used for the treatment of chronic venous insufficiency patients with leg swelling, acidity, fatigue, pain, varicose veins, calf spasm and so on. Generally twenty days a course of treatment, the condition of the milder people generally 2 ~ 4 weeks have effect, the condition of the more serious people generally 4 ~ 8 weeks effective, generally about 1 ~ 2 courses of treatment. The main side effects of MaiZhiLing tablets are gastrointestinal reactions such as nausea, mild diarrhea, etc. Dry mouth, headache, dizziness, itching or allergic reactions may also occur, and are contraindicated in patients with galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption disorder. The application of MaiZhiLing should be under the guidance of a physician, if symptoms worsen or thrombophlebitis occurs in the course of application, it should be promptly to the hospital for prompt treatment.