Trental 400 mg tablets contain pentoxifylline, a xanthine derivative that works by improving blood flow through narrowing or damaged blood vessels. It is commonly used in the treatment of peripheral arterial disease, intermittent claudication (leg pain caused by poor circulation), and other circulatory disorders. Pentoxifylline increases the flexibility of red blood cells and decreases blood viscosity, improving oxygen delivery to tissues. This helps reduce pain, cramping, and muscle fatigue during physical activity. Trental is generally taken over an extended period to achieve maximum benefits. . Please Note that product description, color, ingredients, package and other information maybe different from the original pack kindly check the product for more accurate details.