Objective:To explore the clinical effect of amiodarone combined with metoprolol intravenous injection in the treatment of tachyarrhythmia.Methods:62 patients with tachyarrhythmia were selected.They were randomly divided into the control group and the experimental group.The control group was treated with amiodarone,and the experimental group was treated with amiodarone combined with metoprolol.We compared the treatment effect of two groups.Results:After treatment,the effective rate,heart rate and systolic bl...