Heart rhythm tablets generic name is propafenone hydrochloride tablets, taking propafenone hydrochloride tablets stopping time is not a unified standard, according to the patient’s specific situation, clinically seen patients taking a few years or a few months. Propafenone hydrochloride tablets is a wider range of antiarrhythmic drugs, can be used for both atrial arrhythmia and ventricular arrhythmia. Some patients who suffer from atrial fibrillation need to take propafenone hydrochloride tablets for a long time in order to prevent recurrence of the disease or to try to maintain sinus rhythm. Adverse reactions such as dry mouth and numbness of the lips and tongue may occur after use of the drug, and may be observed by a doctor. The drug should be used with caution in cases of severe myocardial damage. The safety of the drug in children and pregnant women has not been established, and discontinuation is recommended for lactating women. The use of this drug is contraindicated in patients with hypersensitivity to this drug or the components of the formula, severe atrioventricular block, cardiogenic shock, severe hypotension. The specific dosage and usage of the above medicines should follow the doctor’s instructions and should not be used on its own to avoid adverse reactions.