SPL Set ID: 00680bea-d2fb-4362-ba67-e866b732e9ed

Ezetimibe and simvastatin tablets contain ezetimibe USP, a selective inhibitor of intestinal cholesterol and related phytosterol absorption, and simvastatin USP, an HMG-CoA reductase inhibitor. The chemical name of ezetimibe, USP is 1-(4-fluorophenyl)-3(R)-[3-(4-fluorophenyl)-3(S)-hydroxypropyl]-4(S)-(4-hydroxyphenyl)-2-azetidinone. The molecular formula is C 24 H 21 F 2 NO 3 and its molecular weight is 409.4. Ezetimibe, USP is a white, crystalline powder that is freely to very soluble in ethanol, methanol, and acetone and practically insoluble in water. Its structural formula is: Simvastatin, USP, an inactive lactone, is hydrolyzed to the corresponding β-hydroxyacid form, which is an inhibitor of HMG-CoA reductase. Simvastatin, USP is butanoic acid, 2,2-dimethyl-,1,2,3,7,8,8a-hexahydro-3,7-dimethyl-8-[2-(tetrahydro-4-hydroxy-6-oxo-2 H -pyran-2-yl)-ethyl]-1-naphthalenyl ester, [1 S -[1α,3α,7β,8β(2 S *,4 S *),-8aβ]]. The molecular formula of simvastatin, USP is C 25 H 38 O 5 and its molecular weight is 418.57. Simvastatin, USP is a white to off-white, nonhygroscopic, crystalline powder that is practically insoluble in water and freely soluble in chloroform, methanol and ethanol. Its structural formula is: Ezetimibe and simvastatin is available for oral use as tablets containing 10 mg of ezetimibe USP, and 10 mg of simvastatin, USP (ezetimibe and simvastatin tablets 10 mg/10 mg), 20 mg of simvastatin, USP (ezetimibe and simvastatin tablets 10 mg/20 mg), 40 mg of simvastatin, USP (ezetimibe and simvastatin tablets 10 mg/40 mg), or 80 mg of simvastatin, USP (ezetimibe and simvastatin tablets 10 mg/80 mg). Each tablet contains the following inactive ingredients: ascorbic acid, butylated hydroxyanisole, citric acid anhydrous, croscarmellose sodium, hypromellose, iron oxide black, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and propyl gallate. formula 1 formula 2