the effects of the dihydropyridine calcium antagonists , nifedipine , nitrendipine and fr 7534 on the transmural distribution of coronary blood flow ( endo/epi ) were compared to the structurally unrelated calcium antagonists , verapamil and diltiazem and to the non-calcium antagonist vasodilator drugs , chromonar and dipyridamole in anesthetized dogs .
C2945601
dihydropyridine calcium antagonists
C0028066
nifedipine