[ Drug Name] Omeprazole Enteric-Coated Capsules [ Ingredient] The active ingredient is omeprazole. [ Description] The inner content of capsules is white to off-white enteric coated granules. [ Indications] Used for the treatment of gastric ulcer, duodenal ulcer, stress ulcer, reflux esophagitis and zollinger-Ellison syndrome( gastrin adenoma) . [ Dosage and Administration] Oral, can not be chewed. See details in instruction. [ Specification] 20mg [ Storage] Store in airtight container, protect from light and moisture. The active ingredient in Omeprazole Enteric-Coated Capsules is a substituted benzimidazole, 5-methoxy-2-[ [ ( 4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl] -1Hbenzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is C17H19N3O3S, with a molecular weight of 345.42. Omeprazole is a white to off-white crystalline powder which 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 lightly 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 Enteric-Coated Capsules is supplied as delayed-release capsules for oral administration. Each delayed-release capsule contains 20 mg of omeprazole in the form of enteric-coated granules.