SPL Set ID: f27b3518-d5c1-1229-e053-2a95a90ab56f
1 drug(s) with this SPL Set ID
The active ingredient in Omeprazole delayed-release capsules, 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 empirical 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. Omeprazole is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains either 10 mg, 20 mg or 40 mg of omeprazole in the form of enteric-coated granules with the following inactive ingredients: ammonium hydroxide, colloidal anhydrous silica, dibutyl sebacate, ethylcellulose 20 cP, hypromellose, maize starch, methacrylic acid-ethyl acrylate copolymer, oleic acid, polysorbate 80, sodium lauryl sulfate, sucrose, talc, titanium dioxide, and triethyl citrate. The capsule shells have the following inactive ingredients: ammonium hydroxide, black iron oxide, ethyl alcohol, gelatin, isopropyl alcohol, n-butyl alcohol, potassium hydroxide, propylene glycol, shellac, and titanium dioxide. Omeprazole delayed-release capsules meet USP Dissolution Test 2. Chemical Structure