What does this procedure involve?

Pirfenidone Antifibrotic Therapy is a daily oral medication regimen designed to slow the progression of idiopathic pulmonary fibrosis (IPF) and other fibrotic lung diseases. Patients take prescribed doses of pirfenidone at home, typically three times per day with food. The therapy is monitored quarterly through liver function tests (LFTs) to check for hepatic side effects and pulmonary function tests (PFTs) to assess lung capacity and disease stability. This is an annual maintenance treatment, not a one-time procedure, and all monitoring visits are performed on an outpatient basis.