tocainide ( mean plasma level 3.3 +/- 0.7 micrograms/ml ) was efficacious in 3 of 8 patients , the modified lown score decreased from 63 +/- 32 ( placebo period ) to 42 +/- 27 ( p less than 0.01 ) and lown 4b arrhythmias were abolished in 3 of 4 patients .
C0085237
tocainide
C0003811
arrhythmias