Propafenone tablets, or propafenone hydrochloride tablets, need to be swallowed after meals and food or drink at the same time, not chewed, the specific use of the drug need to follow the doctor’s instructions. Propafenone hydrochloride tablets instructions pointed out that the drug is taken after meals and food or drink at the same time swallowed whole, because the drug has a local anesthetic effect, can be chewed. Propafenone hydrochloride tablets belong to a kind of antiarrhythmic drugs, reduce myocardial stress, have a mild effect of lowering blood pressure and slowing down the heart rate. It is used for paroxysmal ventricular tachycardia and also for supraventricular tachycardia. Adverse reactions to this product include numbness of the tongue and lips, dry mouth, dizziness, headache, vomiting, nausea, and constipation. The drug is contraindicated in people who are allergic to the drug, severe atrioventricular block, sinus node dysfunction, bifascicular block, cardiogenic shock, severe congestive heart failure, and severe hypotension. The drug should be used rationally under the guidance of a doctor, and should be treated by a doctor in time when an adverse reaction occurs.