lidocaine , given in a 300 mg dose intramuscularly followed by 100 mg intravenously , did not prevent sustained ventricular tachycardia , although there was a significant reduction in the number of patients with warning arrhythmias between 15 and 45 minutes after the administration of lidocaine ( p less than 0.05 ) .
C0003811
arrhythmias
C0023660
lidocaine