Propafenone tablets are propafenone hydrochloride tablets, which are generally not recommended for long-term use, and are also contraindicated for people who are allergic to the drug, as well as other people in cardiogenic shock. Propafenone hydrochloride tablets can treat symptomatic supraventricular tachycardia, such as atrioventricular junctional tachycardia and paroxysmal atrial fibrillation. However, some patients taking propafenone hydrochloride tablets may experience adverse reactions such as postural hypotension, upright hypotension, syncope, chest pain, dizziness, etc., so long-term treatment with propafenone hydrochloride tablets is not recommended. It is forbidden to use Propafenone Hydrochloride Tablets for those who are allergic to the ingredients of Propafenone Hydrochloride Tablets, or for those who have cardiogenic shock, myocardial infarction within 3 months, as well as for those who have severe hypotension and myasthenia gravis. It is recommended that propafenone hydrochloride tablets can be used under the guidance of a doctor, not unauthorized use of the drug, and during the use of propafenone hydrochloride tablets should not be adjusted the dose of the drug.