Cardiovascular activities of the new potent and long-lasting antihypertensive calcium entry blocker (+-)-3-ethyl,5-methyl,2- ([2-(formylamino)-ethyl]- thiomethyl)-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicar box ylate.

BBR 2160 ((±)3-ethyl, 5-methyl, 2-{[2-(formylamino/- ethyl]-thiomethyl}-6-methyl-4-(3-nitrophenyl/-1,4-dihydropyridine-3,5-dicarboxylate, CAS 118587-22-7/ is a new calcium entry blocker (CEB) which completely displaces 3 H-nitrendipine from binding sites, is 10 times more potent than amlodipine (A) and equiactive with nifedipine (N)