FIP Treatment Cost in Europe: A Transparent 84-Day Breakdown
- DVM Vien
- May 9
- 5 min read
If you've just heard the words "your cat has FIP," cost is probably the last thing you want to think about — and the first thing you have to. The 84-day GS-441524 protocol is intense, daily, and not optional. Knowing what it actually costs lets you plan, not panic.
This guide breaks down the real costs of treating Feline Infectious Peritonitis in the EU for 2026, with worked examples for cats of different weights and FIP types. No upsells. No hidden fees.
What does an 84-day FIP treatment actually cost?
Fip treatment cost depends on three things: your cat's weight, the FIP form (wet, dry, ocular, or neurological), and how reliable your supply chain is.
For a typical adult cat in the EU, you should budget between €500 and €1,200 for the full medication course, plus monitoring costs through your local vet. The range is wide because dosing scales with body weight and FIP form — here's the breakdown.
Cost component 1: The medication
GS-441524 is dosed in mg per kg of body weight, recalculated weekly. Heavier cats need more drug. Different FIP forms need different starting doses:
FIP type | Starting dose |
Wet (effusive) | 6 mg/kg/day |
Dry (non-effusive) | 8 mg/kg/day |
Ocular | 10 mg/kg/day |
Neurological | 10 mg/kg/day |
The other variable is concentration. A higher-concentration vial covers more days but is harder to dose precisely in small cats. We stock two:
GS-441524 Injectable 20 mg/ml — €69 per 8 ml vial (kittens, cats under 2.5 kg)
GS-441524 Injectable 30 mg/ml — €89 per 8 ml vial (adult cats 2.5 kg and over)
Note: The worked examples below use starting doses. Cats sometimes need a +2 mg/kg increase if response is slow, and weight gain during recovery raises the dose too — budget 1–2 extra vials as a safety margin.
Worked example: 4 kg adult cat with wet FIP
Daily dose: 4 kg × 6 mg = 24 mg/day
30 mg/ml vial (8 ml) = 240 mg total
Covers 240 ÷ 24 = 10 days per vial
84 days ÷ 10 = 9 vials
9 × €89 = €801 for the full course
Worked example: 1.5 kg kitten with wet FIP
Daily dose: 1.5 kg × 6 mg = 9 mg/day
20 mg/ml vial (8 ml) = 160 mg total
Covers ~17 days per vial
84 days ÷ 17 = 5 vials
5 × €69 = €345 for the full course
Worked example: 5 kg cat with neurological FIP
Daily dose: 5 kg × 10 mg = 50 mg/day
30 mg/ml vial covers 4.8 days
84 days ÷ 4.8 = 18 vials
18 × €89 = €1,602 for the full course
Higher doses for neuro and ocular forms cost more — there's no way around the maths. But these are also the forms where dose precision matters most.
Cost component 2: Veterinary consultation
Some suppliers charge for diagnosis review, dosing calculation, and ongoing protocol support. We don't.
Every FipDr order includes free consultation: intake form review within 24 hours, licensed-vet sign-off on dosing, and daily check-in support throughout the full 84-day course (and the 84-day observation period that follows).
If you go through a third-party vet for additional in-person monitoring, expect roughly €40–€80 per visit in most EU countries.
Cost component 3: Bloodwork and monitoring
This is the variable cost most people miss. A complete FIP monitoring set typically includes:
Day 0 (pre-treatment): CBC, biochemistry, AGP, A:G ratio
Day 28, Day 56, Day 84: repeat bloodwork
In the EU, expect €60–€120 per bloodwork panel. Total monitoring cost over 84 days: roughly €240–€480. This is paid to your local vet, not to us — but we'll review the results with you free of charge.
Cost component 4: Shipping
We ship from Germany to anywhere in the EU and UK in 1–2 business days, at ambient temperature. No cold chain required. Discreet packaging. Shipping cost is included on every order — no surprise customs fees.
What you should avoid paying for
Counterfeit and underdosed product is the single biggest hidden cost in this market. A €40 vial that turns out to be 60% concentration is more expensive than a €89 vial of verified material — because your cat won't recover, and you'll restart the protocol.
When evaluating any GS-441524 supplier, demand:
Third-party HPLC purity test (≥99% purity)
Endotoxin testing for injectable safety
Certificate of Analysis available per batch
Veterinary support — not just shipping
Every FipDr batch is HPLC-tested at ≥99.4% purity with full documentation available on request.
Total budget cheat-sheet
Item | Typical range |
GS-441524 medication (84-day course) | €345–€1,602 |
Initial vet visit + diagnosis | €80–€200 |
Bloodwork at days 0, 28, 56, 84 | €240–€480 |
FipDr consultation, support | €0 |
Total out-of-pocket | €665–€2,282 |
Payment: One time, or in instalments?
Some owners prefer to pay one vial at a time as the protocol progresses. Others bulk-order to lock in the full course. Both work — your cat's weight will likely change between weeks 4 and 12, which can affect the exact vial count.
If instalments fit your cash flow better, place individual orders. Express delivery means there's no risk of running out.
What we wish more owners knew before they start
The number that matters isn't the per-vial price — it's the per-mg cost paired with consistent dosing. Underdosing to save money is the most common reason FIP cats relapse. Skipping the day-28 bloodwork is the second.
If the full course feels impossible right now, write to us. Some owners crowdfund within their FIP support communities. Others negotiate payment plans with their local vet. The treatment works — but it works most reliably when you do all 84 days, on schedule, at the right dose.
Frequently asked questions
Is GS-441524 covered by pet insurance in the EU?
Most EU pet insurance policies don't currently reimburse GS-441524 because the drug isn't yet broadly registered as a veterinary medicine in most member states. This is changing — the UK approved Bova Aura in 2024 and EMA discussions continue. Check your policy directly.
Can I switch between 20 mg/ml and 30 mg/ml mid-treatment?
Yes, and you sometimes should. As your cat regains weight, the 30 mg/ml may become more practical. Your consulting vet will confirm the right transition point.
Are the prices on this page final?
Yes. €69 and €89 are the listed per-vial prices. No subscriptions, no hidden fees, free EU shipping included. Prices reflect FipDr rates as of May 2026.
This article is informational and does not constitute veterinary advice. All treatment decisions belong to your consulting/treating veterinarian.
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