Phoslo is a phosphate binder and it acts by preventing phosphate accumulation in the stomach and checking the amount of Phosphate being absorbed by the body. Phoslo is being used as end stage kidney failure and is being given orally. High phosphate level leads to hyperphosphatemia and this can lead to variety of problems. Decreasing blood phosphate level keeps your bones strong and stops the deposit of extra minerals in the blood. This helps in reducing the risk of heart disease and stroke.