Ezetimibe is a class of cholesterol absorption inhibitors, which can reduce hepatic cholesterol stores and plasma cholesterol levels by inhibiting the absorption of cholesterol in the intestinal tract. Ezetimibe is a class of cholesterol absorption inhibitors, and is commonly used in the treatment of primary hypercholesterolemia, pure agranulocytosis, and pure familial hypercholesterolemia because of its ability to reduce hepatic cholesterol stores and plasma cholesterol levels. It should be noted that adverse reactions such as abdominal pain, diarrhea, nausea, and fatigue may occur after treatment with the drug alone; and the drug is contraindicated in patients with hypersensitivity to any component of the drug, active liver disease, and unexplained persistent elevation of serum aminotransferases. Patients who need to use Ezetimibe for treatment should use it under the guidance of a professional doctor, and should not blindly use the drug on their own.