Buy Pirfenex 200 mg online (Pirfenidone),Pirfenidone is used in the treatment of mild to moderate Idiopathic Pulmonary Fibrosis (IPF). IPF is chronic fibrotic and inflammatory lung disease where the lungs tissues become swollen and scarred over time due to synthesis and release of certain chemicals (pro-inflammatory cytokines such as tumor necrosis factor-alpha [TNF-?] and interleukin-1-beta [IL-1?]), causing difficulty in breathing.