SPL Set ID: 8a0c609f-e296-4925-a35c-e93a04467655

The active ingredient in atazanavir capsules is atazanavir sulfate, which is an HIV-1 protease inhibitor. The chemical name for atazanavir sulfate is ((3 S ,8 S ,9 S ,12 S )-3,12-Bis(1,1-dimethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylmethyl)-6-[[4-(2-pyridinyl)phenyl]methyl] 2,5,6,10,13-pentaazatetradecanedioic acid dimethyl ester, sulfate. Its molecular formula is C 38 H 52 N 6 O 7 .H 2 SO 4 which corresponds to a molecular weight of 802.9 (sulphuric acid salt). The free base molecular weight is 704.9. Atazanavir sulfate has the following structural formula: Atazanavir sulfate is an off white to pale yellow coloured crystalline powder. It is slightly soluble in water at acidic pH, freely soluble in methanol, soluble in dimethylformamide and dimethylsulfoxide. Atazanavir capsules are available for oral administration in strengths of 150 mg, 200 mg, or 300 mg of atazanavir, which are equivalent to 170.854 mg, 227.805 mg, or 341.708 mg of atazanavir sulfate, respectively. The capsules also contain the following inactive ingredients: crospovidone, lactose monohydrate, and magnesium stearate. The capsule shells contain the following inactive ingredients: gelatin, FD&C Blue 1, iron oxide yellow, titanium dioxide, In addition 150 mg capsule shell contains iron oxide black, 200 mg and 300 mg contains FD&C Yellow 6, 300 mg also contains FD&C Red 3. The capsules are printed with black ink containing iron oxide black, potassium hydroxide, propylene glycol, shellac, strong ammonia solution. atazanavircapsulestructure