the ca2+ channel blocker binding sites were characterized by studying the binding of the dihydropyridine , [ 3h ] nimodipine , and of the phenylalkylamine , ( - ) - [ 3h ] desmethoxyverapamil , to purified spm isolated from sheep brain cortex synaptosomes .
C0012315
dihydropyridine
C0028094
nimodipine