lansoprazole dr - Generic Medications

The active ingredient in Lansoprazole Delayed-Release Capsules, USP is lansoprazole USP, 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 16H 14F 3N 3O 2S with a molecular weight of 369.37. Lansoprazole has the following structure: [f53ca2be-a290-4157-ad95-d24dfe3344f9-01] 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 USP 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, USP for oral administration. Lansoprazole delayed-release capsules,USP are available in two dosage strengths: 15 mg and 30 mg of lansoprazole USP per capsule. Each delayed-release capsule contains enteric-coated pellets consisting of 15 mg or 30 mg of lansoprazole USP (active ingredient) and the following inactive ingredients: corn starch, gelatin, hydroxypropyl cellulose, magnesium carbonate, methacrylic acid and ethyl acrylate copolymer dispersion, polyethylene glycol, polysorbate 80, sucrose, sugar spheres, talc, titanium dioxide, FD&C Blue 2 1, Iron oxide yellow 1, Iron oxide black 2. 1 Lansoprazole delayed-release capsules, USP 15 mg only. 2 Lansoprazole delayed-release capsules, USP 30 mg only.