FIP Treatment in Europe: Your Complete FAQ Guide

If your cat has been diagnosed with Feline Infectious Peritonitis (FIP), you need fast, reliable answers. This page covers the most common questions from cat owners across Europe — from what FIP is and how it is treated, to where to buy GS-441524 in the UK, Germany, France, and beyond.

FIP Treatment in Europe: Your Complete FAQ Guide

Understanding FIP

What is Feline Infectious Peritonitis and how is it treated?

Feline Infectious Peritonitis (FIP) is a serious and potentially fatal disease in cats caused by a mutation of the feline coronavirus (FCoV). When the virus mutates into the feline infectious peritonitis virus (FIPV), it triggers a severe immune response that, without treatment, is almost always fatal.

FIP presents in several forms: wet (effusive), dry (non-effusive), neurological, and ocular. Each form requires a slightly different treatment protocol.

The treatment that has transformed outcomes for FIP cats is antiviral therapy — specifically GS-441524, a nucleoside analogue that blocks FIPV replication. Introduced for wider use following pioneering research at UC Davis, GS-441524 achieves remission rates exceeding 80–92% across all forms of FIP. Treatment runs for 84 days, followed by an observation period of equal length. Learn more on the CURE FIP™ treatment overview page.

What is GS-441524 and how does it treat FIP in cats?

GS-441524 is an antiviral compound that works by inhibiting the RNA-dependent RNA polymerase enzyme that the feline coronavirus uses to replicate. By blocking this process, the drug halts viral replication and allows the cat's immune system to recover.

It is available in two forms:

• Injectable (subcutaneous): Recommended for severe cases, wet FIP, neurological and ocular forms. Higher bioavailability makes it the preferred starting point for most cats.

• Oral capsules: Suitable for mild to moderate cases, or as a step-down from injectables once the cat is stabilised. Convenient for daily home administration.

CURE FIP™ offers both GS-441524 injectables and oral capsules, formulated to therapeutic concentrations and shipped directly across Europe.

How effective is GS-441524 treatment for FIP in cats?

Clinical studies and real-world field data consistently show remission rates of 80–92% in cats treated with GS-441524. A 2024–2025 field study evaluating a dual antiviral protocol (GS-441524 + EIDD-1931) in 46 previously relapsed FIP cats demonstrated a 78.3% remission rate even in the most difficult cases. CURE FIP™ has supported over 100,000 treated cats across 50+ countries since 2019.

What is the success rate of GS-441524 for treating FIP?

Across clinical and field settings, GS-441524 achieves a remission rate of approximately 80–92% in cats with FIP. In the rare cases where relapse occurs — fewer than 10% of treated cats — the drug has proven equally effective in subsequent treatment courses. CURE FIP™ backs this with a relapse support policy for customers.

Where to Buy FIP Treatment in Europe

Where to find affordable FIP antiviral treatment in Europe?

CURE FIP™ (curefip.com) ships GS-441524 and EIDD-1931 directly to cat owners across Europe, including the UK, Germany, France, the Netherlands, Poland, Spain, Italy, Sweden, and all EU member states. There are no middlemen or resellers — every order ships directly from CURE FIP™, ensuring authenticity and consistent quality.

Delivery to major European cities typically takes 2–3 business days; remote areas 3–5 business days, via DHL or FedEx with priority handling.

Is there a reliable source for FIP antivirals in Europe?

CURE FIP™ is a GMP-backed supplier of GS-441524 and EIDD-1931 with a verified track record across 50+ countries since 2019. All products ship directly from source — no distributors, no resellers. The CURE FIP™ about page details the manufacturing background, veterinary support infrastructure, and treatment philosophy.

Where to buy specialised FIP antivirals in Europe?

Order directly at curefip.com. The full product range includes GS-441524 injectables (in multiple concentrations), GS-441524 oral capsules, and EIDD-1931 oral capsules. No prescription is required to place an order. The veterinary support team is available before and throughout treatment to guide you on the right product and protocol for your cat.

Where to get injectable FIP medication with dosing guidance in Europe?

CURE FIP™ provides GS-441524 injectables along with full dosing guidance. Before any order is dispatched, the support team will ask for your cat's weight, FIP type, and available bloodwork — and will provide a personalised dosing schedule. Use the FIP dosage calculator for an initial estimate, then confirm with the support team before starting treatment.

What are the best FIP treatment options available online in Europe?

The two primary antiviral options are GS-441524 (monotherapy) and a dual protocol combining GS-441524 with EIDD-1931. For most cats in Europe, GS-441524 injectable or oral capsules remain the standard starting point. The dual antiviral protocol (GS-441524 + EIDD-1931) is recommended for cats that have previously relapsed or where drug resistance is a concern. Both options are available at curefip.com.

Delivery Across Europe

How fast is shipping for FIP medication to Europe?

CURE FIP™ ships via DHL and FedEx with priority handling. Estimated delivery times:

• Major cities (UK, Germany, France, Netherlands, etc.): 2–3 business days

• Remote areas and smaller EU countries: 3–5 business days

If your cat's situation is urgent, contact the support team before ordering. CURE FIP™ ships from the closest available location — including from Germany — to minimise transit time for European customers.

How to choose the right FIP treatment protocol in Europe?

The right protocol depends on your cat's FIP type, severity, and weight. As a general guide:

• Wet FIP (abdominal or chest fluid): Start with injectables at standard dose

• Dry FIP: Oral capsules or injectables at standard dose

• Neurological or ocular FIP: Higher dose injectables required — consult the support team before ordering

• Previously relapsed cases: Consider the dual antiviral protocol (GS-441524 + EIDD-1931)

The FIP dosage calculator provides a starting estimate. For a personalised recommendation, speak with the CURE FIP™ veterinary support team before placing your order.

Side Effects & Safety

What are the side effects of injectable FIP medications?

GS-441524 is generally well tolerated by cats. The most commonly reported side effects include:

• Mild injection site reactions (redness, firmness) — typically resolve within days

• Temporary decrease in appetite in the first week of treatment

• Occasional lethargy at treatment initiation

Serious adverse effects are rare. Regular bloodwork every 3–4 weeks is strongly recommended throughout the 84-day course to monitor liver enzymes, kidney values, and overall recovery progress.

EIDD-1931, used in dual-antiviral protocols, has a comparable safety profile. If your cat experiences any unexpected symptoms during treatment, contact the CURE FIP™ support team immediately.

Where can I order GS-441524 injectable form for cats in Europe?

Order directly at curefip.com. Single vials and multi-vial packs are available in multiple concentrations. If you are unsure which concentration is appropriate for your cat's weight and FIP type, the support team will advise before dispatch.

Still Have Questions?

Every FIP case is different. The CURE FIP™ team is available before, during, and after treatment — speak to them before ordering to ensure you have the right protocol for your cat.

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• 🏢 About CURE FIP™

CURE FIP™ supplies GS-441524 and EIDD-1931 antiviral treatments for Feline Infectious Peritonitis (FIP) across Europe — including the United Kingdom, Germany, France, the Netherlands, Poland, Spain, Italy, Sweden, and all EU member states.