SPL Set ID: 2fbd0c56-82bf-f0fa-e063-6294a90a9f2f

Oseltamivir Phosphate Capsules, USP, an influenza neuraminidase inhibitor (NAI), are available as capsules containing 30 mg, 45 mg, or 75 mg of oseltamivir for oral use, in the form of oseltamivir phosphate. In addition to the active ingredient, each capsule contains pregelatinized starch, talc, povidone, croscarmellose sodium, and sodium stearyl fumarate. The 30 mg capsule shell contains gelatin, titanium dioxide, and sodium lauryl sulfate. The 45 mg and 75 mg capsule shells contain gelatin, titanium dioxide, and sodium lauryl sulfate, FD&C Blue 1, D&C Red 28, and FD&C Red 40. Each capsule is printed with black ink, which includes black iron oxide. Oseltamivir phosphate is a white crystalline solid with the chemical name (3R,4R,5S)-4-acetylamino-5- amino-3(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid, ethyl ester, phosphate (1:1). The chemical formula is C16H28N2O4 (free base). The molecular weight is 312.4 for oseltamivir free base and 410.4 for oseltamivir phosphate salt. The structural formula is as follows: Structure Structure