individually , an effective regimen ( more than 83 % reduction of vpcs and abolition of ventricular tachycardia ) was found in 5 patients ( 26 % ) receiving quinidine alone at maximal tolerated dose , in 4 ( 21 % ) receiving procainamide alone at maximal tolerated dose , and in 14 ( 74 % ) receiving combination therapy ( p less than 0.01 vs quinidine or procainamide ) .
C0151636
vpcs
C0033216
procainamide