The generic name of Cardioplegia is Propafenone Hydrochloride Tablets. Common drug side effects are dry mouth, numbness of the tongue and lips, and early adverse reactions such as headache, nausea, vomiting, and constipation. Symptoms of atrioventricular blockade may also occur. Propafenone hydrochloride tablets are antiarrhythmic drugs of class Ic (i.e., acting directly on the cell membrane). It is mainly used for paroxysmal ventricular tachycardia and supraventricular tachycardia. Common side effects of the drug are dry mouth and numbness of the tongue and lips, probably due to its local anesthetic effect. Early adverse effects include headache, followed by nausea, vomiting, constipation, and atrioventricular block. Attention should be paid to patients with unprotected sinus node dysfunction, severe atrioventricular block, and double bundle branch block. It is contraindicated in severe congestive heart failure, cardiogenic shock, severe hypotension and hypersensitivity to the drug. The safety and efficacy of the use of the awarded in pregnant women and children are uncertain. If you need to use the drug, you need to use it under the supervision of a doctor. The drug should be used under the guidance of a physician, it is recommended that patients who need to take propafenone hydrochloride tablets to the cardiology department of a regular hospital and other related departments for consultation, do not take the drug on their own.