Pharmacology: Pirfenidone acts mainly over growing factors and tumoral necrosis factors (TGF-β₁ and TNF-α) where it inhibits collagen synthesis, down-regulates profibrotic cytokines and decreases fibroblast proliferation, which stops the accumulation of extracellular matrix on the lungs.

Aplicación: human

CAS number: 53179-13-8

Chemical formula: C₁₂H₁₁NO