to examine whether nicardipine , a dihydropyridine derivative , limits size of myocardial infarction , and to compare the protective effects of nicardipine administered before and early and late after coronary artery occlusion , 99mtc-labeled albumin microspheres were injected into the left atrium during 5 min temporary coronary artery occlusion to determine the extent of the hypoperfused zone ( the area at risk ) .
C0012315
dihydropyridine
C0028005
nicardipine