mdl 72567 was a potent displacer of [ 3h ] nitrendipine binding from rat cortical membrane preparations ( ki 3.99 nm ) , indicating an effect at the dihydropyridine binding site , which is consistent with the finding that the inhibitory effects of mdl 72567 in smooth muscle were prevented by the dihydropyridine ca2+ channel activator bay k 8644 .
C0028127
nitrendipine
C0012315
dihydropyridine