noradrenaline ( na ) ( 10 ( -5 ) m ) , adrenaline ( 10 ( -5 ) m ) , and isoproterenol ( 10 ( -6 ) m ) ( in 0.9 % nacl ) induced arrhythmias infrequently , but in the presence of ca2+ ( 2.5 x 10 ( -3 ) m cacl2 ) they consistently induced arrhythmias -- most commonly ventricular tachycardia -- within 60 sec that were readily reversible on termination of infusion .
C0014563
adrenaline
C0003811
arrhythmias