Condition analysis: Arrhythmia drugs can be selected under the guidance of doctors. Here are some drugs that will lower the heart rate. Recommendation: Receptor blockers: These drugs will block the receptors, weaken the myocardial contractility and slow down the heart rate. For patients with good heart function, nervousness and hypertension, propranolol can be taken orally. Or metoprolol (betaloc) or atenolol (aminoacylpropranolol) can cause bradycardia, hypotension and atrioventricular block. If the heart rate is less than 60 beats per minute, please stop using it.