SPL Set ID: db42468a-450c-4b12-b2f2-e9a76e976d45

The active ingredient in Lansoprazole Delayed-Release Capsules, USP is lansoprazole, a substituted benzimidazole, 2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl] methyl] sulfinyl] benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C 16 H 14 F 3 N 3 O 2 S with a molecular weight of 369.37. Lansoprazole has the following structure: Lansoprazole is a white to brownish-white odorless crystalline powder which melts with decomposition at approximately 166°C. Lansoprazole is freely soluble in dimethylformamide; soluble in methanol; sparingly soluble in ethanol; slightly soluble in ethyl acetate, dichloromethane and acetonitrile; very slightly soluble in ether; and practically insoluble in hexane and water. Lansoprazole is stable when exposed to light for up to two months. The rate of degradation of the compound in aqueous solution increases with decreasing pH. The degradation half-life of the drug substance in aqueous solution at 25°C is approximately 0.5 hour at pH 5.0 and approximately 18 hours at pH 7.0. Lansoprazole Delayed-Release Capsules, USP are supplied in delayed-release capsules for oral administration.The delayed-release capsules are available in two dosage strengths: 15 mg and 30 mg of lansoprazole per capsule. Each delayed-release capsule contains enteric-coated granules consisting of 15 mg or 30 mg of lansoprazole (active ingredient) and the following inactive ingredients: methacrylic acid copolymer dispersion, hypromellose, magnesium carbonate, mannitol, polyethylene glycol, polysorbate, sodium lauryl sulfate, sodium starch glycolate, sugar spheres, talc, titanium dioxide. The capsule shell contains FD&C blue #2, gelatin, titanium dioxide and yellow iron oxide. Capsules are printed with edible black ink which contains black iron oxide, n-butyl alcohol, isopropyl alcohol, propylene glycol and shellac. formula-structure.jpg