SPL Set ID: 6368a3be-4b79-466b-8ec4-11fc3ac623cc
1 drug(s) with this SPL Set ID
The active ingredients of naproxen and esomeprazole magnesium delayed-release tablets are naproxen which is an NSAID and esomeprazole magnesium which is a Proton Pump Inhibitor (PPI). Naproxen and esomeprazole magnesium delayed-release tablets are combination of a nonsteroidal anti-inflammatory drug and a PPI available as modified capsule shaped, off white to yellow colored 375 mg/20 mg and 500 mg/20 mg, multi-layer, delayed-release tablet combining an enteric-coated naproxen core and an immediate-release esomeprazole magnesium layer surrounding the core. Each strength contains either 375 mg of naproxen USP and 20 mg of esomeprazole (equivalent to 20.71 mg esomeprazole magnesium USP amorphous form) or 500 mg of naproxen USP and 20 mg of esomeprazole (equivalent to 20.71 mg esomeprazole magnesium USP amorphous form) for oral administration. The inactive ingredients are ammonium hydroxide, croscarmellose sodium, ferric oxide yellow, hypromellose, iron oxide black, lactose monohydrate, magnesium oxide, magnesium stearate, methacrylic acid copolymer, poloxamer, polyethylene glycol 400, povidone, propylene glycol, shellac glaze, simethicone, sodium hydroxide, sodium lauryl sulphate, talc, titanium dioxide and triethyl citrate. The chemical name for naproxen is (S)-6-methoxy-α-methyl-2-naphthaleneacetic acid. Naproxen has the following structure: Naproxen has a molecular weight of 230.26 and a molecular formula of C 14 H 14 O 3 . Naproxen USP is white to off-white practically odourless crystalline powder. It is soluble in chloroform, in dehydrated alcohol and in alcohol, sparingly soluble in ether and practically insoluble in water. The octanol/water partition coefficient of naproxen at pH 6.48 is 1.5. The chemical name for esomeprazole is bis(5-methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole-1-yl) magnesium amorphous. Esomeprazole is the S-isomer of omeprazole, which is a mixture of the S- and R- isomers. Its molecular formula is (C 17 H 18 N 3 O 3 S) 2 Mg with molecular weight of 713.1. The structural formula is: The esomepraozle magnesium USP is a white to pale cream colored powder. It is slightly soluble in methanol and soluble in N,N-Dimethyl formamide and practically insoluble in heptane and in water. The stability of esomeprazole magnesium 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. structure1 structure2