SPL Set ID: dc85d0c8-d3c4-4d37-9a5b-8f5f992bb3bf
1 drug(s) with this SPL Set ID
The active ingredient in esomeprazole magnesium delayed-release capsules, USP for oral administration is 5-methoxy-2-[( S )-[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]sulfinyl] benzimidazole, magnesium salt (2:1). Esomeprazole is the S-isomer of omeprazole, which is a mixture of the S- and R- isomers. (Initial U.S. approval of esomeprazole magnesium: 2001). Its molecular formula is C 34 H 36 MgN 6 O 6 S 2 with molecular weight of 713.12 on an anhydrous basis. The structural formula is: Figure 1 The magnesium salt is a white to slightly colored powder. It is soluble or slightly soluble in methanol and practically insoluble in water and heptane. The stability of esomeprazole magnesium, USP is a function of pH; it rapidly degrades in acidic media, but it has acceptable stability under alkaline conditions. At pH 6.8 (buffer), the half-life of the magnesium salt is about 19 hours at 25°C and about 8 hours at 37°C. Esomeprazole Magnesium Delayed-Release Capsules, USP are supplied in delayed-release capsules. Each delayed-release capsule contains 20 mg, or 40 mg of esomeprazole (present as 22.25 mg, or 44.50 mg esomeprazole magnesium) in the form of enteric-coated granules with the following inactive ingredients: hydroxypropyl cellulose, hypromellose, magnesium stearate, methacrylic acid copolymer dispersion, mono and di glycerides, polysorbate 80, sugar spheres (corn starch and sucrose), talc, and triethyl citrate. The capsule shells have the following inactive ingredients: D&C Red #28, FD&C Blue #1, FD&C Red #40, ferric oxide black, gelatin, potassium hydroxide, propylene glycol, shellac, and titanium dioxide. Meets USP Dissolution Test 2. spl-structure