Great News: GS-441524 Is Now Legally Available!

Since June 2024, GS-441524 is legally available from US compounding pharmacies by veterinary prescription. Oral tablets are now the standard first-line treatment. Ask your vet to prescribe from Stokes Pharmacy, Wedgewood, or other licensed compounding pharmacies.

Over 20,000 cats treated with Bova GS-441524 worldwide. 78–96% survival in clinical studies.

This site is now a read-only archive. FIPLog.com operated 2020–2025. This site no longer accepts new data.

Hello FIP Warrior

FIP is now a curable disease. GS-441524 is available through compounding pharmacies with a vet prescription. Oral tablets mean no more daily injections for most cats!

Treatment Outcomes from FIPLog Data (2020–2025)

461
Cats Cured
1049
Cats Completed Treatment
3.2%
Relapse Rate
2109
Total Cats Logged
844 dry / 1265 wet
How Cats Respond During Treatment

Average owner-reported wellbeing score (1=very sick, 5=acts cured) over weeks of treatment by brand. Error bars show 95% CI.

FIP Type Distribution

Cases logged: 844 dry, 1265 wet.

Age Distribution

Age at diagnosis. Most FIP occurs in cats under 2 years old.

FIP Is Curable!

Tens of thousands of cats treated. Your vet can now legally prescribe GS-441524. Oral tablets are standard.

Learn about FIP treatment »

Treatment Costs

  • Oral tablets (50mg): ~$9–$10/tablet
  • Capsules: $2–$12 by strength
  • Injectable: ~$45/5mL vial

Typical 84-day treatment: $1,500–$5,000+

Estimate Costs »

Scientific Basis

The 2019 UC Davis study proved GS-441524 works. Studies of 127–307 cats confirm 78–96% survival.

More Information »

More FIP Research Is Needed

ZenByCat

ZenByCat funds research on new antivirals like EIDD-1931 for refractory cases.

Help Fund FIP Research »