SPL Set ID: 46dbdb95-a0d0-4410-8d64-b22763b12af7
1 drug(s) with this SPL Set ID
Naproxen tablets, USP are nonsteroidal anti-inflammatory drugs available as follows: Naproxen tablets, USP are available as yellow tablets containing 250 mg of naproxen USP, pink tablets containing 375 mg of naproxen USP, and yellow tablets containing 500 mg of naproxen USP for oral administration. Naproxen, USP is a propionic acid derivative related to the arylacetic acid group of nonsteroidal anti-inflammatory drugs. The chemical name for naproxen, USP is (S)-6-methoxy-α-methyl-2-naphthaleneacetic acid. Naproxen, USP has a molecular weight of 230.26 and a molecular formula of C 14 H 14 O 3 . It has the following structural formula: Naproxen, USP is an odorless, white to off-white crystalline substance. It is lipid-soluble, practically insoluble in water at low pH and freely soluble in water at high pH. The octanol/water partition coefficient of naproxen at pH 7.4 is 1.6 to 1.8. The inactive ingredients are croscarmellose sodium, povidone, iron oxide yellow, iron oxide red colloidal silicon dioxide and magnesium stearate. Structural Formula