125i-iodipine labelled sites also recognize the recently described 1,4-dihydropyridine calcium channel activators and discriminate the chemically unrelated compounds ( - ) - and ( + ) verapamil , ( - ) - and ( + ) methoxyverapamil and d- and l-cis diltiazem .
C0042523
verapamil
C0016986
methoxyverapamil