Diosmin
A citrus bioflavonoid closely related to hesperidin. Diosmin is used extensively in Europe to treat chronic venous insufficiency, hemorrhoids and varicose veins. Diosmin also has antioxidant, anti-inflammatory and (experimental) antitumor activities.
Chemical name: 3′,5,7-trihydroxy-4′-methoxyflavone-7-rutinoside.