Feline Infectious Peritonitis (FIP) is a disease that continues to perplex and challenge veterinary professionals worldwide. With no legal access to treatment for veterinarians in the U.S., FIP was often seen as a death sentence for cats. However, recent advancements in antiviral therapy have shown that effective treatment for Feline Infectious Peritonitis (FIP) is now a reality.
Check out our FIP Survivors!
Our exclusive partnership with the Bova group means we can offer US-made FIP treatment for veterinarians to prescribe! This treatment, Bova GS-441524, is available in tablet and suspension formulations and is supported by Bova’s unique drug formula, which has been utilized in clinical research studies across the globe and is currently in use in the UK and Australia.
Learn more about the benefits of our Bova GS-441524 medications and start your order for office use or patient prescription!
For other patient needs during FIP treatment, such as pain management, Epicur Pharma can provide Gabapentin, Flurbiprofen Sodium, Buprenorphine, Cidofovir, and other high quality medications. Explore their full product portfolio.
When Jack arrived at Colorado State University’s Veterinary Teaching Hospital, he was critically ill and was diagnosed with both feline infectious peritonitis (FIP) and immune-mediated hemolytic anemia (IMHA). Thanks to the quick action of his owners, Nico and Kinsey, and the expert care of Board-Certified Small Animal Internal Medicine (SAIM) specialist, Petra Cerna, and Small Animal Internal Medicine Resident, Yuvani Bandara, Jack began treatment with our groundbreaking Bova GS-441524 FIP therapy.
In the past, there was no effective treatment for FIP but thankfully times have changed and there are antiviral medications available with good results in treating FIP. These drugs are legally available in many countries and have been shown to be safe and effective (through clinical studies), although they can be expensive.
Current recommendations are to treat for 12 weeks to allow full clearance of the disease. This can seem a long time but gives cats the best chance of recovery. It may be that shorter courses can be recommended in the future but for now 12 weeks of treatment is required. Different types of FIP require different amounts (dosages) of antiviral medication, FIP cats showing neurological and/or ocular signs being treated with higher dosages. However, there is variation in how cats respond, and adjustments may be needed during the treatment period. If a cat is not responding as expected, the amount of antiviral medication may need to be increased.
Watch our on-demand FIP webinars to learn from professionals who have treated this disease and completed exciting FIP research. CE credits are not available for on-demand viewers.
*Note: Webinars older than three months could be dated, as treatment is rapidly evolving. Our team will record updated versions periodically to provide you with the most current data and information.
Recorded August 6, 2025 | 5 p.m. ET
Recorded May 13, 2025
Recorded March 19, 2025
Recorded December 12, 2024
Recording Updated December 9, 2024
Recorded July 17, 2024
Recorded June 27, 2024
Recorded June 20, 2024
Recorded May 30, 2024
© Stokes Healthcare/Bova 2024
© Stokes Healthcare/Bova 2024
Published April 2024
Unlicensed antiviral products used for the at-home treatment of feline infectious peritonitis contain GS-441524 at significantly different amounts than advertised
Published June 2023
Thirty-two cats with effusive or non-effusive feline infectious peritonitis treated with a combination of remdesivir and GS-441524
Published April 2024
Retrospective study and outcome of 307 cats with FIP treated with legally sourced veterinary compounded preparations of remdesivir and GS-441524
Published 2023
Feline Infectious Peritonitis: European Advisory Board on Cat Diseases Guidelines
Published June 2023
Outcomes of treatment of cats with feline infectious peritonitis using parenterally administered remdesivir, with or without transition to orally administered GS-441524
For caregivers who have questions about FIP, its impact on cats, and the treatment options now available, share this video as a helpful tool. The video shares updates that can answer their questions and put them at ease about the care their cat receives.
To date, Stokes Pharmacy has helped more than 15,000 cats diagnosed with Feline Infectious Peritonitis (FIP) across the United States. This formulation, exclusive to Stokes Pharmacy through The Bova Group, has been used to treat over 25,000 cats worldwide.
Read the inspiring stories of recovery and resilience from FIP Survivor cats and their families across the nation.
The following information was written by Dr. Stephanie Sorrell, Prof. Séverine Tasker, Dr. Sam Taylor, Dr. Emi Barker, and Prof. Danielle Gunn-Moore
FIP is a severe disease in cats caused by feline coronavirus. COVID-19 is also caused by a coronavirus but the coronavirus causing FIP is not the same and only infects cats. In a small number of cats, the virus mutates inside the cat and interacts with the cat’s immune system in a certain way, resulting in FIP.
We do not know why certain cats develop FIP and others do not, but it is diagnosed more often in:
Cats with FIP can show a variety of signs as the disease can affect any organ in the body. The most common signs are:
503A Traditional Compounding Pharmacy
503B FDA Registered Outsourcing Facility
Stokes/Epicur Online Ordering Platform
Presented by Dr. Petra Černá PhD, DACVIM (SAIM), Dipl. ECVIM-CA, MANZCVS (Medicine of Cats), CertAVP (SAM - F), MRCVS, AFHEA, AdvCertFB Dr. Sally Coggings BVSc (Hons I), PhD, MANZCVS (Feline Medicine), Sydney School of Veterinary Science, The University of Sydney, Australia Dr. Samantha Taylor BVetMed(Hons), CertSAM, DipECVIM-CA, MANZCVS, FRCVS
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Presented by Melanie Church, DVM, DACVO
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11:17 Intro and Disclosure
12:09 Feline Coronavirus Overview
13:24 Risk Factors for FIP
13:58 Types of FIP (Wet vs Dry)
15:06 Ocular FIP Overview
16:00 Signs of Ocular FIP
16:13 Anterior Uveitis
17:50 The Most Common Ocular Manifestation of FIP
20:06 Chorioretinitis
23:25 Ocular FIPs Effect on IOP
24:49 Blood Ocular Barriers
28:45 Evidence of Highly Suspicious Diagnosis of FIP
34:15 Ocular Histopathology
36:59 Treatment as Confirmation of Diagnosis of FIP
37:34 Treatment for FIP
39:48 Does GS-441524 Cross the Blood-brain Barriers?
46:25 Case Presentations
Q&A
Presented by Dr. Sally Coggins, BVSc (Hons I), PhD, MANZCVS (Feline Medicine), Sydney School of Veterinary Science, The University of Sydney, Australia
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25:50 At what age can a cat develop FIP?
26:48 What clinical signs might support FIP?
30:26 Diagnosis for non-effusive FIP (dry FIP)
34:35 Diagnosis for effusive FIP (wet FIP)
37:48 Using PCR tests for wet FIP
40:48 An alternative approach to Dry FIP diagnosis
42:50 Tests you should not use to diagnose FIP
44:38 Antiviral treatment trials for diagnosis of FIP
50:43 Treatment options for FIP
52:27 GS-441524 vs Molnupiravir / EIDD-1931
52:55 Expected survival with Remdesivir / GS-441524
53:52 GS-441524
54:36 Do FIP cats need corticosteroids?
55:19 Treatment duration (can we do less than 12 weeks?)
59:19 Troubleshooting suboptimal response to GS-441524
1:00:30 Adverse reactions with GS-441524
1:01:26 Molnupiravir / EIDD-1931
1:03:10 Molnupiravir adverse effects
1:03:52 Protease inhibitors
1:06:57 How to decide which antiviral to use?
1:10:45 Q&A
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Presented by Petra Černá PhD MANZCVS (Medicine of Cats) CertAVP (SAM - F) MRCVS AFHEA AdvCertFB
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7:37 – Feline coronavirus
14:40 – Risk factors for FIP
16:00 – What breeds of cats are more likely to develop FIP?
18:56 – Clinical signs of FIP
22:05 – How to diagnose FIP
35:30 – Using PCR to help diagnose FIP
36:55 – Can a cat start on a treatment trial for FIP?
39:30 – Treating cats for FIP with GS-441524 from Stokes Pharmacy
43:35 – What are the dose recommendations for GS-441524
49:55 – Treating FIP cats with Molnupiravir or EIDD-1931
57:20 – Monitoring cats with FIP
58:30 – Relapses
1:02:00 – FAQs
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6:00 – GS-441524 Overview
8:00 – Introductions
14:45 – FIP Dosing Calculator
17:55 – General Treatment Quick Tips 33:47 – What’s the FDA say?
41:21 – GS-441524 tablets vs. injections 56:00 – Vet and pet owner roles in FIP treatment
1:10:30 – Finding FIP friendly practices
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Complete the form below to access the free on-demand webinar.
Complete the form below to access the free on-demand webinar.
