Betalucil extended-release tablets refer to metoprolol succinate extended-release tablets, and the fact that the medication can be broken is related to the manufacturing process. Metoprolol succinate extended-release tablets are beta-blockers, a special slow-release technology that makes the drug ingredients into small particles, each of which slowly releases the drug ingredients, so the drug can be broken open and taken without affecting the effectiveness of the drug. Metoprolol succinate extended-release tablets can be used for the treatment of coronary heart disease and high blood pressure, and clinically the oral drug should be taken from a small dose, the dose of each tablet is 47.5mg, in order to meet the patient’s needs for the drug, you can start from half a tablet. The adverse reactions of metoprolol extended-release tablets include dizziness, bradycardia, dyspnea, cold extremities, etc. It is contraindicated in patients with cardiogenic shock, allergy to drug components, bronchial asthma, severe bradycardia, and hypotension. Metoprolol extended-release tablets should be under the guidance of a physician to choose the appropriate dose, avoid self-medication.