ventricular fibrillation occurred in 11 of 14 ( 79 % ) control dogs , in 2 of 8 ( 25 % ) dogs treated with magnesium sulfate ( 100 mg/kg ) and in none of 8 animals treated with verapamil ( 0.2 mg/kg ) ( p = 0.014 and p = 0.0004 , respectively , in comparison with controls ) ;
C0042510
ventricular
C0024480
magnesium sulfate