Question 1

What routes can Pirfenidone be administered by?

Accepted Answer

Available routes: PO.

Question 2

Is Pirfenidone a controlled substance?

Accepted Answer

Pirfenidone is not federally scheduled in the US. Controlled-drug status differs by country — verify your local rules.

Question 3

What are the warnings or contraindications for Pirfenidone?

Accepted Answer

Photosensitivity — limit sun exposure. GI upset, rash, elevated LFTs. Investigational for canine idiopathic pulmonary fibrosis.

Question 4

What are the side effects of Pirfenidone?

Accepted Answer

Reported side effects, adverse reactions, and contraindications for Pirfenidone: Photosensitivity — limit sun exposure. GI upset, rash, elevated LFTs. Investigational for canine idiopathic pulmonary fibrosis.

Question 5

How does Pirfenidone work?

Accepted Answer

Antifibrotic agent that reduces TGF-beta, PDGF, and TNF-alpha production, inhibiting fibroblast proliferation, collagen deposition, and pulmonary fibrosis progression.

Pirfenidone

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