There are a number of treatments for slow arrhythmias, including medications and pacemaker therapy, which need to be chosen differently depending on the patient’s condition. Pharmacological treatment of slow arrhythmias Pharmacological treatment of slow arrhythmias is aimed at those that can be transformed, which are often functional and transient arrhythmias. For those with persistent and serious organic pathologies, drug therapy is often unable to correct them, such as sinus node dysfunction and atrioventricular block, which have already caused severe bradyarrhythmias and are likely to be unchangeable with drugs. In general, sinus bradycardia with a heart rate between 40-60 beats per minute can be temporarily corrected with some medications, such as atropine, 654-2, isoproterenol, etc. However, these medications cannot be used for a long time, as they can not only produce many side effects such as hypothyroidism and pulmonary fibrosis after a long time, but also induce arrhythmias themselves. Most severe symptomatic bradycardia, such as dizziness, fatigue, chest tightness, shortness of breath, and decreased activity tolerance due to bradycardia, should be treated with pacemaker implantation, which is called symptomatic bradycardia. If this symptomatic bradycardia does not recover and is always present and affects the quality of life, it indicates a problem with the patient’s own conduction system, which is an indication for pacemaker implantation. Pacemakers are the best alternative therapy because they improve the quality of life.