50 patients , aged 41 to 85 years , with paroxysmal supraventricular tachycardia ( psvt , 21 cases ) , atrial flutter ( 7 cases ) or fibrillation ( 22 cases ) were treated with 4 mg/kg of body weight of amiodarone i.v . over 2 min. , followed by other 1500 mg/24 hours over 48 hours while amiodarone per os was started for antiarrhythmic prophylaxis ;
C0002598
amiodarone
C0003195
antiarrhythmic