Solgar Rutin 500mg a plant pigment (flavonoid) that is found in certain fruits and vegetables. Rutin may support the strengthening of blood vessels, so may be used for varicose veins, internal bleeding, hemorrhoids, and to prevent strokes due to broken veins or arteries (hemorrhagic strokes).  Rutin has in the past been also used to prevent a side effects of some cancer treatment called mucositis. This painful condition is marked by swelling and ulcer formation in the mouth or lining of the digestive tract.