ObjectiveTo investigate the effectiveness and the best dosage of pirfenidone(PF) for treating rat pulmonary fibrosis induced by bleomycin(BLM).

• 目的研究吡非尼酮(PF)对博莱霉素诱导的大鼠肺间质纤维化模型的治疗作用，摸索其最佳药物浓度。