What is Feline Infectious Peritonitis (FIP)?

Feline Infectious Peritonitis (FIP) is a serious viral disease caused by a mutation of feline coronavirus (FCoV). An estimated 1–2% of cats worldwide may develop FIP, and without timely treatment the condition can be fatal.

Early signs can be subtle—such as lethargy, reduced appetite, and weight loss—but the disease can progress rapidly. Early detection and prompt veterinary care are critical.

Pioneering research led by Dr. Niels Pedersen and his team at UC Davis helped demonstrate how GS-441524 can transform FIP from a fatal diagnosis into a treatable condition.

NeoFipronis® provides an officially registered, oral GS-441524 treatment designed for practical FIP care.

Authority & Registration

Pharmaceutical Grade. 99.8% Purity. Officially registered by the Ministry of Agriculture and Forestry (MAF) for the treatment of FIP.
Pharmaceutical Grade. 99.8% Purity. Officially registered by the Ministry of Agriculture and Forestry (MAF) for the treatment of FIP.
RETAIL
Start Treatment with Confidence
Choose the appropriate NeoFipronis® pack based on your cat’s weight and treatment plan. To ensure uninterrupted treatment, we recommend ordering enough for the full 84-day course — most customers begin with 3 Boxes for better value and continuity.
Final quantity depends on your cat’s weight and FIP type. Use Dosage Calculator
NeoFipronis 1 box Supplement

NeoFipronis® — 1 Box

30 Tablets • Compact pack
$699.00
USD
  • Supplemental supply
  • For dosage adjustments
NeoFipronis 2 boxes Save $69

NeoFipronis® — 2 Boxes

60 Tablets • Better continuity
$1,329.00
USD
  • Better value
  • Improved treatment continuity
NeoFipronis 6 boxes Save $695

NeoFipronis® — 6 Boxes

180 Tablets · Maximum savings
$3,499.00
USD
  • Biggest discount
  • Best for long-term planning

Professionals

NeoFipronis® Partners

Professional access for veterinary clinics, pharmacies, and qualified distributors seeking documented, traceable supply and compliance-first collaboration.

Note: Professional applications are reviewed for eligibility and regional availability.

NeoFipronis® Treatment Assurance

Designed for practical, weight-based dosing, NeoFipronis® tablets are scored so they can be easily split from 30mg to 15mg, helping veterinarians and cat owners tailor treatment accurately and confidently.

Cats typically show visible improvement within one week of starting NeoFipronis®.

Should relapse occur during the observation period after 84 days of treatment, we will collaborate with your veterinarian and support up to an additional 84 days of NeoFipronis® therapy — because your cat’s recovery matters.

With NeoFipronis®, you gain access to a legally registered, high-quality oral GS-441524 treatment that offers real hope, real results, and real protection for cats with FIP.

Designed for practical, weight-based dosing, NeoFipronis® tablets are scored so they can be easily split from 30mg to 15mg, helping veterinarians and cat owners tailor treatment accurately and confidently.

Cats typically show visible improvement within one week of starting NeoFipronis®.

Should relapse occur during the observation period after 84 days of treatment, we will collaborate with your veterinarian and support up to an additional 84 days of NeoFipronis® therapy — because your cat’s recovery matters.

With NeoFipronis®, you gain access to a legally registered, high-quality oral GS-441524 treatment that offers real hope, real results, and real protection for cats with FIP.

FIP Treatment Knowledge

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