- Official UK Vet FIP owners’ guide
- Official UK Vet guide
- Latest research (issued July 2024) proves vet FIP treatment can be 42 days
*The medication available from vets (GS-441524) is now the cheapest it has ever been from the pharmaceuticals.
Vets can mark up as they please, but they should think carefully about this in a life-and-death situation such as FIP*
- GS-441524 is available in both tablet and suspension (liquid) forms.
- Another, very effective antiviral treatment is also available to vets from Bova UK: EIDD-1931 tablets. Information about it is contained within the brochure linked here.
- How do you know if FIP treatment is working? AGP is a valuable marker to evaluate treatment with GS-441524, according to this paper https://doi.org/10.3390/v16050791
“Treatment Details
Oral GS-441524 is very effective, with many studies showing recovery rates of >
%. Other effective antivirals include GC376, remdesivir, molnupiravir (EIDD-2801).”
“Supportive treatment is EXTREMELY important 
and can include appetite stimulants, nutrition, fluid therapy, effusion drainage (e.g. thoracocentesis if dyspnoeic), analgesics, anti-emetic and anti-pyretic drugs.”
The above was updated according to the latest data on treatment: https://www.abcdcatsvets.org/portfolio-item/factsheets-tools-for-feline-infectious-peritonitis-fip/