Companion Animals

Cat Feline Infectious Peritonitis Treatment

Feline infectious peritonitis (FIP) was previously a death sentence for cats but antiviral treatment with GS-441524 has transformed it from fatal to treatable in many cases.

Key Facts

FIP is caused by a mutated feline coronavirus causing immune-mediated disease
Previously around 95% fatal within weeks to months of diagnosis
GS-441524 antiviral treatment achieves remission in most cats when administered correctly
Treatment requires 12 weeks minimum and costs several thousand pounds
Remission rates with appropriate treatment exceed 80% in many cases

Welfare Considerations

FIP treatment has transformed welfare outcomes for cats with this previously fatal disease. Access to treatment is limited by cost, with significant welfare inequality between cats whose owners can afford treatment and those who cannot. Supporting charitable funds for FIP treatment addresses this welfare gap.

What You Can Do

Seek veterinary assessment immediately if your cat shows signs of FIP as early treatment improves outcomes
Support FIP treatment charitable funds for cats whose owners cannot afford treatment
Celebrate FIP treatment development as a remarkable animal welfare advance