Daflon 500mg is a medication commonly used to treat conditions related to blood circulation, such as chronic venous insufficiency, hemorrhoids, and varicose veins. It contains a combination of two active ingredients, diosmin and hesperidin, both of which are flavonoids derived from citrus fruits. These ingredients work by improving the tone of veins, reducing inflammation, and enhancing microcirculation, which helps to alleviate symptoms such as swelling, pain, and heaviness in the legs.