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 start with a 30-day supply based on their cat’s body weight.
Final quantity depends on your cat’s weight and FIP type. Use Dosage Calculator
30-Day Supply Options NeoFipronis 30 mg Tablets

PRODUCT OPTIONS

NeoFipronis® 30 mg Tablets

One product, multiple box options. Select the appropriate 30-day supply based on your cat’s weight.

1 Box / 30 Tablets For Cats 1–2 kg
$380.00 $580.00
2 Boxes / 60 Tablets For Cats 3–4 kg
$720.00 $1,160.00
4 Boxes / 120 Tablets For Cats 7–8 kg
$1,280.00 $2,320.00

CUSTOMER SUPPORT

Need Help Before Making a Decision

Our support team can help with product information, verification details, registration documents, and order-related questions.

Questions before ordering? Contact support for product details and verification help.

Need Help Reviewing Your Cat’s Case?

Submit your cat’s signs, weight, age, and case notes for a free FIP-related case review.

FIP Treatment Knowledge

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