SPL Set ID: 29b0fd0e-5a2b-4da7-8524-177dc28bf55e
1 drug(s) with this SPL Set ID
Pirfenidone belongs to the chemical class of pyridone. Pirfenidone is available as a white opaque hard gelatin capsules containing 267 mg of pirfenidone USP for oral administration and as film-coated tablets containing 267 mg (yellow), 534 mg (orange) and 801 mg (brown) pirfenidone USP. Pirfenidone has a molecular formula of C 12 H 11 NO and a molecular weight of 185.23. Pirfenidone has the following structural formula, which has been referred to as 5-Methyl-1-Phenyl-1 H -pyridin-2-one or 5-Methyl-1-phenylpyridin-2(1 H )-one. Pirfenidone USP is a white to pale yellow or pink color solid, non-hygroscopic powder. It is more soluble in methanol, ethyl alcohol, acetone and chloroform than in water and 1.0 N HCl. The melting point is approximately 109°C. Pirfenidone capsules, USP contain pirfenidone USP and the following inactive ingredients: croscarmellose sodium, isomalt, and magnesium stearate. In addition, the capsule shell contains gelatin and titanium dioxide. The capsule brown printing ink includes black iron oxide, brown iron oxide, propylene glycol, and shellac. Pirfenidone tablets, USP contain pirfenidone USP and the following inactive ingredients: Colloidal silicon dioxide, croscarmellose sodium, mannitol, microcrystalline cellulose, povidone, and sodium stearyl fumarate. The film-coating material contains polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide. Additionally 267 mg tablets contain iron oxide yellow. 534 mg tablets contain FD&C yellow #6. 801 mg tablets contain black iron oxide and iron oxide red. Pirfenidone Chemical Structure