Companion Animal Welfare

Cat Feline Infectious Peritonitis Antiviral Update

Antiviral treatment for FIP has transformed one of the most feared feline diseases from a death sentence to a treatable condition.

Key Facts

FIP was uniformly fatal before antivirals became available from around 2019
GS-441524 and Remdesivir target the replicase enzyme of feline coronavirus
Treatment courses of 84 days achieve remission in approximately 80-90% of cases
Wet (effusive) and dry (non-effusive) FIP both respond to antiviral treatment
Access remains challenging due to regulatory status and cost in many countries

Welfare Considerations

Antiviral FIP treatment is one of the most significant advances in feline medicine in decades. The transformation from universal fatality to high-remission treatable condition represents an enormous welfare improvement. Improving access and reducing cost are the remaining barriers.

What You Can Do

If FIP is suspected in your cat, seek specialist vet assessment and discuss antiviral options immediately
Join FIP owner communities for access to current treatment information and support networks
Support campaigns for regulatory approval and affordable access to FIP antivirals in your country