amlodipine besylate and atorvastatin calcium - Medication Listings

Amlodipine besylate and atorvastatin calcium tablets combine the calcium channel blocker amlodipine besylate USP with the HMG CoA-reductase inhibitor atorvastatin calcium. The amlodipine besylate USP is chemically described as 3-ethyl-5-methyl (4RS)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate benzenesulphonate. Its molecular formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S. The atorvastatin calcium is chemically described as [R-(R*, R*)]-2-(4-fluorophenyl)-ß, δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid, calcium salt (2:1). Its molecular formula is C 66 H 68 CaF 2 N 4 O 10 . The structural formulae for amlodipine besylate USP and atorvastatin calcium are shown below. Amlodipine besylate and atorvastatin calcium contains amlodipine besylate USP, a white or almost white powder, and atorvastatin calcium, a white to off-white colored powder, free from visible extraneous matter. Amlodipine besylate USP has a molecular weight of 567.1 and atorvastatin calcium has a molecular weight of 1155.36. Amlodipine besylate USP is freely soluble in methanol, sparingly soluble in ethanol, slightly soluble in water and in 2-proponal. Atorvastatin calcium is soluble in dimethyl sulphoxide, slightly soluble in alcohol, very slightly soluble in water, in pH 7.4 phosphate buffer and in acetonitrile and practically insoluble in aqueous solutions of pH 4 and below. Amlodipine besylate and atorvastatin calcium is available as film-coated tablets containing: 2.5 mg amlodipine equivalent to 3.468 mg amlodipine besylate USP and 10 mg atorvastatin equivalent to 10.341 mg atorvastatin calcium. 2.5 mg amlodipine equivalent to 3.468 mg amlodipine besylate USP and 20 mg atorvastatin equivalent to 20.683 mg atorvastatin calcium. 2.5 mg amlodipine equivalent to 3.468 mg amlodipine besylate USP and 40 mg atorvastatin equivalent to 41.365 mg atorvastatin calcium. 5 mg amlodipine equivalent to 6.935 mg amlodipine besylate USP and 10 mg atorvastatin equivalent to 10.341 mg atorvastatin calcium. 5 mg amlodipine equivalent to 6.935 mg amlodipine besylate USP and 20 mg atorvastatin equivalent to 20.683 mg atorvastatin calcium. 5 mg amlodipine equivalent to 6.935 mg amlodipine besylate USP and 40 mg atorvastatin equivalent to 41.365 mg atorvastatin calcium. 5 mg amlodipine equivalent to 6.935 mg amlodipine besylate USP and 80 mg atorvastatin equivalent to 82.730 mg atorvastatin calcium. 10 mg amlodipine equivalent to 13.870 mg amlodipine besylate USP and 10 mg atorvastatin equivalent to 10.341 mg atorvastatin calcium. 10 mg amlodipine equivalent to 13.870 mg amlodipine besylate USP and 20 mg atorvastatin equivalent to 20.683 mg atorvastatin calcium. 10 mg amlodipine equivalent to 13.870 mg amlodipine besylate USP and 40 mg atorvastatin equivalent to 41.365 mg atorvastatin calcium. 10 mg amlodipine equivalent to 13.870 mg amlodipine besylate USP and 80 mg atorvastatin equivalent to 82.730 mg atorvastatin calcium. Each film-coated tablet also contains colloidal silicon dioxide, crospovidone, hydroxy propyl cellulose, magnesium stearate, microcrystalline cellulose, pregelatinized starch, sodium bicarbonate, sodium lauryl sulfate, Opadry- II White 85G18490 (Polyethylene glycol, polyvinyl alcohol, lecithin, talc and titanium dioxide), or Opadry- II Blue 85G50642 (FD&C Blue No.2, polyethylene glycol, polyvinyl alcohol, lecithin, talc and titanium dioxide).