the myocardial pharmacodynamic effects of the two dihydropyridine calcium-antagonists nicardipine and nitrendipine were comparatively studied in the isolated , spontaneously beating and retrogradely perfused rabbit heart at stepwise increased drug concentrations within the range 0.5-260 ng x ml-1 ( 1.1-721 nm ) .
C2945601
dihydropyridine
C0028005
nicardipine