PIRFENEX 600MG has Pirfenidone is an anti-fibrotic or anti-inflammatory agent. It is used to treat adults with mild to moderate Idiopathic pulmonary fibrosis. Idiopathic pulmonary fibrosis is a condition in which the tissues in the lungs (alveoli) swell and scar, making breathing difficult. This makes proper lung function difficult.Disclaimer:For More Information Contact Your Physician