(R)-(+)-Amlodipine;(R)-Amlodipine;3,5-Pyridinedicarboxylic acid, 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (4R)-;3,5-Pyridinedicarboxylic acid, 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (R)-;d-Amlodipine;(4R)-2-[(2-AMinoethoxy)Methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-Methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester