SPL Set ID: 6b9c60e9-b0d2-4aec-a04b-ccc7a62c822b

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, USP 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 is supplied in delayed-release capsules for oral administration. Lansoprazole 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: sugar sphere, methacrylic acid copolymer, low substituted hydroxypropyl cellulose, magnesium carbonate, talc, polyethylene glycol, hydroxypropyl cellulose, colloidal silicon dioxide, hypromellose, ferric oxide red, ferric oxide black, ferric oxide yellow, sodium bicarbonate, sodium lauryl sulfate. The imprinting ink contains shellac, propylene glycol, strong ammonia solution, black iron oxide and potassium hydroxide. Lansoprazole delayed-release capsules meets USP Dissolution Test 2. Structure