SPL Set ID: 141c4005-89de-447e-961f-3780f62eded4

Oseltamivir phosphate capsules, USP, an influenza neuraminidase inhibitor (NAI), is 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 croscarmellose sodium, partially pregelatinized starch, povidone k-30, sodium stearyl fumarate and talc. The 30 mg capsule shell contains gelatin, red iron oxide, titanium dioxide, and yellow iron oxide. The 45 mg capsule shell contains black iron oxide, gelatin, and titanium dioxide. The 75 mg capsule shell contains contains black iron oxide, gelatin, red iron oxide, titanium dioxide, and yellow iron oxide. Each capsule is printed with blue ink, which includes FD&C blue #2 aluminum lake, propylene glycol, and shellac. 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 C 16 H 28 N 2 O 4 (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: FDA approved dissolution test specifications differ from USP. structure-formula.jpg