Peroxisomal starch capsule is used for the treatment of azotemia caused by various reasons. It can adsorb ammonia and nitrogen in the gastrointestinal tract, and then be discharged from the feces, which can compensate for renal function and reduce urea nitrogen in the blood. For patients with chronic renal insufficiency, it can reduce the level of serum creatinine, but this product is only applicable to the early stage of renal insufficiency. The adverse effects and contraindications of this product are not clear. It is recommended that this product be taken after meals, food can slow down the rate of drug excretion, increase the amount of absorbed nitrogen of the drug, and better function. This product should be used with a low-protein diet, which can improve the efficacy of the drug. The content of this product is white or off-white powder, which should be stored properly to avoid moisture. Patients should use the drug under the guidance of professional physicians and strictly follow the medical advice.