Medication is required after radiofrequency ablation of supraventricular tachycardia, and it is recommended that anticoagulants be taken routinely for 3 months, along with one or two antiarrhythmic medications. Anticoagulants: In order to reduce the risk of thrombosis in the surgical wound, drugs such as warfarin (monitor the international normalized ratio and control it between 2-3), dabigatran, and so on, can be taken, and it is sufficient to choose one to take. Antiarrhythmic drugs: In order to control the postoperative ventricular rate and prevent recurrence of arrhythmia. Commonly used are amiodarone and metoprolol tartrate, etc. Choose one or both according to the doctor’s instructions. The above drugs are recommended to be used under the guidance of a doctor, and should not be used or adjusted in dosage without authorization.