SPL Set ID: 9ccfe91e-d1fc-d4c1-115b-dd7859b2c3e6
1 drug(s) with this SPL Set ID
Pirfenidone belongs to the chemical class of pyridone. Pirfenidone tablets are available as film-coated tablets containing 267 mg (yellow) and 801 mg (brown) pirfenidone. Pirfenidone has a molecular formula of C 12 H 11 NO and a molecular weight of 185.22 g/mol. Pirfenidone has the following structural formula, which has been referred to as 5-methyl-1 phenyl-2-1(H)-pyridone or 5-methyl-1-phenyl-2-(1H)-pyridinone. Pirfenidone is a white to pale yellow, non-hygroscopic powder. It is freely soluble in methanol, ethyl alcohol, acetone and chloroform. Sparingly soluble in 1 N hydrochloric acid, water and 0.1 N sodium hydroxide. The melting point is approximately 106°C to 112°C. Pirfenidone tablets, USP contain pirfenidone and the following inactive ingredients: colloidal silicon dioxide, ferric ferrous oxide (801 mg only), ferric oxide red (801 mg only), ferric oxide yellow (267 mg only), hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium starch glycolate, talc and titanium dioxide.