Probucol tablets are used to treat hypercholesterolemia. Its side effects include gastrointestinal discomfort, diarrhea and flatulence, abdominal pain, nausea and vomiting, headache and dizziness, abnormal sensation, insomnia, tinnitus, rash, itching, prolongation of the Q-T interval, tachycardia and thrombocytopenia. It is contraindicated for those who are allergic to the ingredients of Probucol Tablets, pregnant and lactating women, and is not suitable for children. It is contraindicated in the following cases: recent myocardial damage, severe ventricular arrhythmia, cardiogenic syncope or syncope of unknown origin, prolongation of the Q-T interval, is reacting to the drugs that prolong the Q-T interval, and the blood potassium or blood magnesium is too low. Allergic reactions to angioneurotic edema have been reported with Probucol Tablets. If you need to use this drug, please consult a professional doctor, follow the doctor’s instructions, and use the drug reasonably.