highly purified canine myocytic sarcolemmal membranes were pretreated with 10-800 microm of selected beta-blocking ( propranolol , pindolol , metoprolol , atenolol , or sotalol ) and class i ( quinidine , lidocaine , procainamide , or diphenylhydantoin ) antiarrhythmic agents at 37 degrees c for 10 minutes .
C0037707
sotalol
C0003195
antiarrhythmic agents