[Products Name] DIOSMIN [Molecular Formula] C28H32O15 [CAS No.] 520-27-4 [Product Description] Diosmin is a semisynthetic phlebotropic drug, a member of the flavonoid family. It is an oral phlebotropic drug used in the treatment of venous disease, i.e.,chronic venous insufficiency (CVI) and hemorrhoidal disease (HD), in acute or chronic hemorrhoids, in place of rubber-band ligation, in combination withfiber supplement, or as an adjuvant therapy to hemorrhoidectomy, in order to reduce secondary bleeding. To control internal symptoms of hemorrhoids (piles), it is used with hesperidin. Clinical studies have been inconclusive and no review articles on its use in vascular disease have been published. Diosmin is currently a prescription medication in Europe, and is sold as a nutritional supplement in the United States.