Companion Animal Welfare

Cat Feline Infectious Peritonitis Treatment Progress

Antiviral drugs have transformed feline infectious peritonitis from a fatal diagnosis to a treatable condition for many cats.

Key Facts

FIP is caused by a mutated feline coronavirus and was previously universally fatal
GS-441524 and related antivirals achieve remission in 80-90% of treated cats
Treatment requires 84 days of daily administration and veterinary monitoring
Access and cost remain significant barriers in many countries
FIP now has a realistic prognosis with prompt diagnosis and treatment

Welfare Considerations

The development of effective FIP treatment is one of the most significant welfare advances in feline medicine in decades. Ensuring broad access to these drugs and supporting affected cat owners are now the key welfare challenges.

What You Can Do

Know the signs of FIP: fluid accumulation, fever, weight loss, neurological signs
Seek veterinary assessment promptly if FIP is suspected - early treatment improves outcomes
Support advocacy for regulatory approval and affordable access to FIP antivirals