Companion Animal Welfare

Cat FIP Antiviral Treatment Access

Feline Infectious Peritonitis (FIP) was once virtually universally fatal, but antiviral treatments now offer cure rates exceeding 85% in many cats.

Key Facts

FIP is caused by a mutated feline coronavirus and was historically 100% fatal
GS-441524 and related antivirals achieve remission in 85-90% of treated cats
Treatment courses typically last 84 days and must be completed in full
Access to licensed antivirals has improved but cost remains a barrier in many countries
Wet FIP and neurological FIP both respond to antiviral treatment

Welfare Considerations

FIP causes severe suffering through fluid accumulation, neurological damage, and systemic inflammation. The emergence of effective antiviral treatments represents one of the most significant welfare advances in feline medicine. However, access barriers including cost and licensing issues mean many cats still do not receive curative treatment.

What You Can Do

Ask your vet about antiviral treatment options if your cat is diagnosed with FIP
Support charities working to improve FIP treatment access
Donate to research improving FIP prevention and treatment