a dihydropyridine cgp 28861 ( 5 x 10 ( -6 ) m ) did not change slow inward ca current as measured by the double sucrose gap method in frog atrial fibres but decreased the agonist effects of bay k 8644 , cgp 28392 , ( + ) - ( s ) -202-791 and the antagonist effects of nifedipine and ( + ) - ( pn ) -200-110 .
C0012315
dihydropyridine
C0028066
nifedipine