Whether or not pirfenidone capsules need to be taken for life is determined on a case-by-case basis. Pirfenidone capsule is a kind of anti-fibrotic drug, mainly for mild to moderate idiopathic pulmonary fibrosis, is also a kind of immunosuppressant, has a wide range of anti-fibrotic effect, can prevent and reverse the formation of fibrosis and scarring, but the drug is not able to completely cure pulmonary fibrosis, so if the treatment is effective, it needs to be taken for a long time. If the treatment is not effective in inhibiting the development of pulmonary fibrosis, especially for severe idiopathic pulmonary fibrosis, you need to stop the drug in time and switch to other drugs for treatment, such as Nibudanib.