the substituted dihydropyridine calcium channel antagonists nitrendipine and nifedipine competitively inhibited specific ( 3h ) bay k 8644 binding suggesting a common high affinity 1,4-dihydropyridine binding site in the coronary microsomal fraction for calcium channel activator and antagonists .
C0028066
nifedipine
C0012315
dihydropyridine