SPL Set ID: a1b22973-cb9a-473e-a240-112b3e84e97c
1 drug(s) with this SPL Set ID
Atorvastatin calcium is a synthetic lipid-lowering agent. Atorvastatin is an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. This enzyme catalyzes the conversion of HMG-CoA to mevalonate, an early and rate-limiting step in cholesterol biosynthesis. Atorvastatin calcium is [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) trihydrate. The empirical formula of atorvastatin calcium is (C 33 H 34 FN 2 O 5 ) 2 Ca•3H 2 O and its molecular weight is 1209.42. Its structural formula is: Atorvastatin calcium is a white to off-white crystalline powder that is insoluble in aqueous solutions of pH 4 and below. Atorvastatin calcium is very slightly soluble in distilled water, pH 7.4 phosphate buffer, and acetonitrile; slightly soluble in ethanol; and freely soluble in methanol. Atorvastatin calcium tablets USP for oral administration contain 10, 20, 40, or 80 mg of atorvastatin and the following inactive ingredients: croscarmellose sodium, hydroxyl propyl cellulose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, opadry-YS-1-7040 white (hypromellose, polyethylene glycol, talc, titanium dioxide), polysorbate 80, precipitated calcium carbonate. Chemical Structure