ExoticRx · exoticrx.com/drugs/pirfenidone
US brand names:Esbriet
Pirfenidone is dosed at 10–25 mg/kg PO q8h in dogs, per Source not established. The citation previously shown here named no retrievable document; a literature search on 2026-07-31 found no source that states this dose for this species and route. Treat as unverified and confirm against a primary reference before clinical use.. Verify against current literature before clinical use.
Antifibrotic agent that reduces TGF-beta, PDGF, and TNF-alpha production, inhibiting fibroblast proliferation, collagen deposition, and pulmonary fibrosis progression.
Photosensitivity — limit sun exposure. GI upset, rash, elevated LFTs. Investigational for canine idiopathic pulmonary fibrosis.
Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 10–25 mg/kg | q8h | Weak | Source not established. The citation previously shown here named no retrievable document; a literature search on 2026-07-31 found no source that states this dose for this species and route. Treat as unverified and confirm against a primary reference before clinical use. |
| Cat (Domestic) | PO | 10–20 mg/kg | q8-12h | Extrapolated | Source not established. The citation previously shown here named no retrievable document; a literature search on 2026-07-31 found no source that states this dose for this species and route. Treat as unverified and confirm against a primary reference before clinical use. |
Upgrade to Pro or Student to unlock the full dose ranges and frequency for every species. The drug's mechanism, warnings, indications, and cited sources are free to read.
View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.