Phosphorus-lowering drugs can be divided into four categories: the first category, calcium-containing phosphorus-lowering drugs, such drugs like calcium carbonate and calcium acetate, but taking these two drugs, can cause hypercalcemia, must pay attention to the observation of blood calcium, so during the use of the drug to regularly recheck blood calcium. The second category, aluminum hydroxide, the drug is an aluminum-containing preparation, can not be used for a long time, can cause aluminum poisoning, so in the process of using the drug to frequently monitor the level of blood aluminum. The third category, non-calcium non-aluminum phosphorus binding agent, the name of the drug is Sevelamer, the drug is an imported drug, will not cause hypercalcemia. However, the drug is expensive and can cause gastrointestinal reactions, so its use is more limited. The fourth category, non-calcium and phosphorus binding agents, called lanthanum carbonate, this drug is also used less, is also more expensive. Currently these four types of phosphorus-lowering drugs, most of the absorption of phosphorus in the body is through food intake, to limit the intake of phosphorus. Some foods contain high phosphorus, like nuts, animal offal, lean meat can cause phosphorus elevation, so we should limit food intake.