Probucol tablets have cholesterol-lowering and anti-atherosclerotic effects, and its dosage is 2 tablets twice a day (each tablet dose 0.25g), taken at breakfast and dinner. 1.Take this drug need to pay attention to the adverse drug reactions, common gastrointestinal reactions, such as diarrhea, abdominal distension, nausea, vomiting, etc., rare electrocardiogram Q-T interval prolongation, ventricular tachycardia, thrombocytopenia, headache, dizziness, sensory abnormalities, insomnia, tinnitus, skin rash, skin itching, angioneurotic edema and so on. Adverse effects of this drug should be considered if any of the above symptoms are present. 2. When taking this drug, it should be noted that this drug can interact with tricyclic antidepressants, antiarrhythmics, phenothiazines, coumarin anticoagulants, hypoglycemic drugs, cyclosporine and other drugs, the application of which should be closely observed, and the dosage should be reduced in the event of renal hypoplasia. The safety of this drug for pregnant women and children is not yet known, so it is not recommended to apply. 3. At the same time this drug has contraindications: allergy to this drug. Recent myocardial damage; severe ventricular arrhythmia; cardiac syncope or syncope of unknown origin; Q-T interval prolongation; the use of drugs to prolong the Q-T interval; low blood potassium or magnesium. The application of this drug should be under the guidance of a physician, do not blindly use the drug, in order to avoid delaying the condition.