Abstract
Idiopathic pulmonary fibrosis (IPF) has a poor prognosis if left untreated; therefore, early treatment with pirfenidone is crucial. Lei et al conducted a retrospective analysis to evaluate the effectiveness of early pirfenidone treatment on lung function in 113 patients with IPF. In addition to other research, pirfenidone has demonstrated efficacy in patients at all stages of IPF once correct diagnosis has been made. In advanced IPF, we include the requirement for pirfenidone. Therefore, it is essential to choose an appropriate method of administration method, such as inhalation. This may circumvent the drawbacks of the high cost and possible adverse effects of this drug.