1.       we are engaged in offering best grade pirfenex tablets. 2.       we have marked a distinct position in this domain by providing an excellent grade pirfenex tablets.   uses:pirfenidone is used to treat a certain lung disease called idiopathic pulmonary fibrosis (ipf). this disease causes the lungs to get scarred and become stiff, making it hard to breathe. pirfenidone may help slow down the worsening of your ipf.