in 12 patients ( mean age 15 years ) with non-life-threatening tachycardia ( orthodromic reciprocating tachycardia , 8/12 ; ventricular tachycardia , 3/12 ; atrial flutter , 1/12 ) in whom intravenously administered procainamide ( 15 mg/kg at 1 mg/kg/min ) terminated tachycardia , efficacy of a single oral dose of procainamide ( 25 mg/kg ) to terminate tachycardia was tested during electrophysiologic study .
C0042514
ventricular tachycardia
C0039231
tachycardia