cardiac arrest: 1-1.5 mg/kg IV repeated every 3-5 min up to 3 mg/kg, follow conversion with a drip of 2-4 mg/min. Ped: 1 mg/kg IV, repeat/3-5 min up to 3 mg/kg, follow conversion with a drip of 20-50 mcg/kg/min. ventricular tachycardia (w/ pulse): 1-1.5 mg/kg slow IV (consider lower dose for elderly). May repeat at one-half dose every 5-10 min until conversion up to 3 mg/kg. Follow conversion with an infusion of 2-4 mg/min. Ped: 1 mg/kg, followed by a drip at 20-50 mg/kg/min.