There are two types of medications to choose for chronic renal insufficiency hyperphosphatemia: calcium-containing phosphorus-binding agents and non-calcium-containing phosphorus-binding agents. When the blood calcium level does not exceed the upper limit of normal, calcium-containing phosphorus-binding agents can be used, such drugs mainly include calcium carbonate and calcium acetate, which are usually chewed with meals. When the blood calcium level is high, it is not suitable for the application of calcium-containing phosphorus binding agents, and non-calcium-containing phosphorus binding agents should be used at this time. The main drugs available are lanthanum carbonate chewable tablets and sevelamer carbonate tablets, the former to be chewed with meals and the latter to be swallowed whole.