the rate-dependent effects of opc-8212 ( 6 microm ) , a new positive inotropic drug which lengthens cardiac action potential duration were studied in dog cardiac purkinje fibers and compared to the effects of sotalol ( 30 microm ) , a class iii antiarrhythmic using conventional microelectrode technique .
C0037707
sotalol
C0003195
antiarrhythmic