SPL Set ID: 9354958c-e997-41c8-8605-23f0a58993c0

The active ingredient in Esomeprazole Sodium for Injection is ( S )-5-methoxy-2[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1 H -benzimidazole sodium, a PPI. Esomeprazole is the S-isomer of omeprazole, which is a mixture of the S- and R-isomers. Its empirical formula is C 17 H 18 N 3 O 3 SNa with molecular weight of 367.4 g/mol (sodium salt) and 345.4 g/mol (parent compound). Esomeprazole sodium is very soluble in water and freely soluble in ethanol (95%). The structural formula is: Esomeprazole sodium for injection is supplied as a sterile, lyophilized, white to off-white, porous cake or powder in a 5 mL single-dose vial, intended for intravenous administration after reconstitution with 0.9% Sodium Chloride Injection, USP; Lactated Ringer’s Injection, USP or 5% Dextrose Injection, USP. Esomeprazole sodium for injection contains esomeprazole sodium 21.3 mg or 42.5 mg equivalent to esomeprazole 20 mg or 40 mg, edetate disodium 1.5 mg and sodium hydroxide q.s. for pH adjustment. The pH of reconstituted solution of esomeprazole sodium for injection depends on the reconstitution volume and is in the pH range of 9 to 11. The stability of esomeprazole sodium in aqueous solution is strongly pH dependent. The rate of degradation increases with decreasing pH. esomeprazole-spl-structure