(±)-S11568 (1. 3-ethyl-5-methyl-(±)-2-[(2-(2-aminoethoxy) ethoxy) methyl]-4-(2, 3- dichlorophenyl)-6-methyl-1, 4-dihydropyridine-3, 5-dicarboxylate), has an in vitro profile of high potency and of high electivity for the low-voltage dependent L-type calcium channel. In in vitro binding studies, it displaced specifically bound (-)-[3H] PN 200–110 (isradipine (2), the reference molecule for in vitro studies) from cardiac and vascular smooth muscle ...