SPL Set ID: db9f071b-85f4-061f-e053-2995a90a3ff5

The active ingredient in omeprazole delayed-release capsule, USP is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1 H -benzimidazole, a compound that inhibits gastric acid secretion. Its molecular formula is C 17 H 19 N 3 O 3 S, with a molecular weight of 345.42. The structural formula is: Omeprazole is a white to off-white crystalline powder that melts with decomposition at about 155°C. It is a weak base, freely soluble in ethanol and methanol, and slightly soluble in acetone and isopropanol and very slightly soluble in water. The stability of omeprazole is a function of pH; it is rapidly degraded in acid media, but has acceptable stability under alkaline conditions. The Dissolution test to be performed according to USP Test 2. Omeprazole is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg of omeprazole in the form of enteric-coated granules. The 10 mg, 20 mg capsule contains the following inactive ingredients: hypromellose, magnesium oxide, methacrylic acid copolymer dispersion type C, povidone, sodium lauryl sulfate, sugar spheres, talc, titanium dioxide, and triethyl citrate. The capsule shells for the 20 mg have the following inactive ingredients: gelatin and titanium dioxide. The capsule shells for the 10 mg have the following inactive ingredients: gelatin, iron oxide black, iron oxide red, iron oxide yellow and titanium dioxide. The black ink used for printing 10 mg, 20 mg contains: black iron oxide, potassium hydroxide, propylene glycol, shellac and strong ammonia solution. The sugar spheres contains maize starch and sucrose. structure