GS-441524 Price in the Philippines: 2026 FIP Cost Guide
- BasmiFIP Philippines
- 3 days ago
- 7 min read
If your cat has just been diagnosed with Feline Infectious Peritonitis (FIP), the first question after the shock is almost always the same: how much will GS-441524 cost, and can our family realistically afford it?
This is the honest, numbers-first guide we wish every Filipino cat parent had on day one. No hype, no vague ranges that change every time you ask, and no judgment about budget. Just a transparent look at the GS-441524 price in the Philippines in 2026, what drives the cost up or down, and how BasmiFIP structures pricing so families from Metro Manila to Mindanao can complete the full 84-day protocol.
Why GS-441524 Pricing Confuses Cat Parents
When you start searching "gs 441 524 price," you will see wildly different numbers. One Facebook group quotes one figure, a reseller quotes another, and a local clinic gives you a third. There are real reasons for this.
GS-441524 is dosed by weight and by form of FIP. A 2.5 kg kitten with wet FIP needs a very different daily dose than a 5 kg adult with neurological FIP. Price quotes that do not ask for your cat's weight and FIP form are guessing.
The four forms of FIP all have different dosing:
1. Wet (effusive) FIP: 6 mg/kg per day
2. Dry (non-effusive) FIP: 8 mg/kg per day
3. Ocular FIP: 10 mg/kg per day
4. Neurological FIP: 10 mg/kg per day
Ocular and neurological FIP are two separate forms, and both require the higher 10 mg/kg dose because the drug has to cross harder barriers (the eye and the blood-brain barrier). That alone can almost double the daily volume of GS-441524 a cat needs compared to wet FIP, which directly affects the total price.
The Honest 2026 Cost Drivers
Before quoting any peso figure, here is what actually moves your total bill:
Cat's weight in kg (the single biggest factor)
Form of FIP (wet, dry, ocular, or neurological)
Treatment duration: the standard protocol is 84 days (12 weeks)
Delivery route: injectable GS-441524 vs oral capsules
Whether dual antiviral therapy (GS-441524 plus EIDD-1931) is appropriate
Diagnostics and monitoring: bloodwork, ultrasound, A:G ratio, globulin, ALT, and SDMA checks
Supportive care if liver or kidney values need help during treatment
A realistic budget conversation includes all of these, not just the vial price.
The BasmiFIP GS-441524 Product Range
BasmiFIP is built around GS-441524 as a core ingredient. We do not avoid naming it, because it is the molecule with the strongest published clinical track record for FIP, including the UC Davis trials led by Dr. Niels Pedersen that established the commonly cited 92% success rate for GS-441524 monotherapy.
Here is what is in the BasmiFIP line for FIP treatment in the Philippines:
1. Basmi FIP Antiviral Injectable (GS-441524)
40 mg/ml concentration
99.4% purity
8 ml vial
Daily subcutaneous injection, 7 days a week, for the full 84-day protocol
This is the workhorse for any cat with ocular or neurological FIP, and for cats who are not eating or defecating normally and therefore cannot reliably absorb oral medication.
2. EIDD-1931 Oral Capsules
15 mg per capsule, 60 capsules per bottle
Indicated for wet and dry FIP only
Not for ocular or neurological FIP
Not for cats who are not eating or defecating normally
Not for pregnant, nursing, or breeding cats (EIDD-1931 is potentially teratogenic)
Dosing is every 12 hours: 1 capsule for cats under 2.5 kg, 2 capsules for 2.5 to 5 kg, and 3 capsules for cats over 5 kg.
EIDD-1931 is roughly 7.3 times more potent than GS-441524, and up to 10 times more potent than molnupiravir. That potency is why it is a powerful option for slow responders, but also why it is reserved for the right cats and the right FIP forms.
3. Dual Antiviral Oral Capsule (GS-441524 + EIDD-1931)
One capsule per day, dosed by weight:
Under 2.5 kg: GS-441524 25 mg + EIDD-1931 5 mg
2.5 to 5 kg: GS-441524 35 mg + EIDD-1931 8 mg
Over 5 kg: GS-441524 50 mg + EIDD-1931 10 mg
This dual-mechanism capsule is used after about 30 days of injections or once the cat is stable. It is not used during active ocular or neurological symptoms, not during vomiting or diarrhea, and not for cats under 1 year of age with wet FIP.
The published Li and Cheah 2025 field study on this dual-antiviral approach reported a 78.3% remission rate in 46 cats. Note that this is a different statistic from the 92% UC Davis figure for GS-441524 monotherapy. Both are real, both come from real sources, and they apply to different protocols.
How the 84-Day Math Actually Works
Let's walk through a realistic example so the GS-441524 price stops being a black box.
Imagine a 4 kg cat with wet FIP. Daily dose: 6 mg/kg x 4 kg = 24 mg of GS-441524 per day. At 40 mg/ml, that is 0.6 ml of injectable per day. Across 84 days, that is roughly 50.4 ml of GS-441524 total, or about 7 vials of the 8 ml product.
Now imagine the same 4 kg cat with neurological FIP. Daily dose: 10 mg/kg x 4 kg = 40 mg per day, or 1.0 ml of injectable per day. Across 84 days, that is 84 ml of GS-441524, or about 11 vials.
Same cat, same body weight, very different totals. This is why an honest GS-441524 price quote always starts with two questions: how much does your cat weigh, and which form of FIP did the vet diagnose?
When you book a free expert consultation with BasmiFIP, we plug in your cat's actual weight, FIP form, and starting bloodwork (globulin, A:G ratio, ALT) and give you a written 84-day plan with the total product cost up front, not in installments of surprise.
Why "Cheap" GS-441524 Often Costs More in the End
Filipino cat parents sacrifice a lot to afford FIP treatment. We respect that, which is why we have to be blunt about a pattern we see often: the cheapest GS-441524 quote at the start frequently becomes the most expensive treatment overall.
Here is why:
Underdosing: Cheap products are sometimes underconcentrated. A vial labeled 40 mg/ml that is actually 25 mg/ml means your cat is silently underdosed for weeks, which is one of the top causes of relapse.
Impurities: Injection-site sores, fevers, and ALT spikes from impure product can add vet visits and supportive medication to your bill.
Mid-protocol switching: Running out of supply at week 6 and scrambling to a different brand often resets progress.
Relapse treatment: A relapse typically requires a higher dose and a fresh 84-day course. That is the most expensive outcome of all.
BasmiFIP's 99.4% purity and verified 40 mg/ml concentration exist precisely so the protocol you start is the protocol you finish.
What You Are Actually Paying For
When you compare GS-441524 prices, make sure you are comparing the same thing. A complete BasmiFIP 84-day treatment package in the Philippines includes:
1. The full calculated volume of GS-441524 (and EIDD-1931 if your cat is a candidate)
2. A written, weight-based protocol customized to your cat's FIP form
3. Free expert consultation throughout the 84 days
4. Nationwide delivery from Metro Manila to Mindanao
5. Guidance on monitoring globulin, A:G ratio, ALT, and SDMA week by week
6. Drug interaction screening (avoiding fluoroquinolone antibiotics, spot-on flea medications, lysine, and immune boosters during treatment)
7. Post-treatment observation guidance during the 84-day watch period after the protocol ends
If a cheaper quote does not include the consultation, the monitoring guidance, and the verified concentration, you are not comparing the same product.
Supportive Care Costs to Plan For
Some cats need adjunct organ support during the 84-day protocol, especially if ALT or SDMA values are elevated at diagnosis. These are not antivirals and do not treat FIP, but they help the liver and kidneys carry the workload of recovery:
LiverRx (for cats): SAMe 90 mg, Silybin A+B 9 mg, Vitamin E 13 mg, Vitamin C 10 mg, 30 tablets
KidneyRx: Magnesium carbonate, Vitamin D, Calcium carbonate, L-Carnitine, Chitosan, Omega-3, and cranberry extract, 60 tablets
These are optional add-ons your consultation will recommend only if your cat's bloodwork suggests they will help.
Week-by-Week, Where the Money Goes
A simple way to think about your 84-day budget:
Weeks 1 to 4: Highest-stakes window. Daily injections, frequent symptom checks, and the first repeat bloodwork around day 28.
Weeks 5 to 8: Many cats stabilize. If appropriate, this is when a switch to the dual antiviral oral capsule may be considered for non-ocular, non-neurological cases.
Weeks 9 to 12: Consolidation. Bloodwork normalizing, weight gain, energy returning. Do not stop early, even if your cat looks completely recovered.
84-day post-treatment observation: No drug cost, but plan one more bloodwork check to confirm sustained remission.
More than 100,000 cats have been treated through the global GS-441524 network since 2019. The cats who reach lasting remission are overwhelmingly the ones whose families completed the full protocol without skipping days or cutting doses to save money.
Talk to Us Before You Decide
A real GS-441524 price for your cat needs your cat's real numbers. Before you commit any budget, book a free expert consultation with BasmiFIP. We will walk through the diagnosis, the form of FIP, the weight-based dose, and the total 84-day cost in writing, with nationwide delivery included.
You can reach the team and order through basmifipphilippines.com.
FAQ
How much does GS-441524 cost in the Philippines for a full 84-day FIP treatment in 2026?
The total depends on your cat's weight and FIP form (wet, dry, ocular, or neurological). A 4 kg cat with wet FIP needs roughly 7 vials of injectable GS-441524 across 84 days, while the same cat with neurological FIP may need around 11 vials. Book a free consultation through basmifipphilippines.com for a written, weight-based quote.
Why is GS-441524 more expensive for neurological or ocular FIP?
Both forms require 10 mg/kg per day instead of 6 mg/kg (wet) or 8 mg/kg (dry), because the drug has to reach the brain or the eye. Higher daily dose means more total product across the 84-day protocol.
Can I lower the price by using only oral capsules instead of injections?
Sometimes, but not always. EIDD-1931 oral capsules are only indicated for wet and dry FIP, never for ocular or neurological FIP, and not for cats who are vomiting or not eating. The dual antiviral oral capsule is typically introduced after about 30 days of injections once the cat is stable. Your consultation will map the most cost-effective route that still fits your cat's clinical picture.
Is the cheapest GS-441524 in the Philippines a good idea?
Usually not. Underconcentrated or impure GS-441524 leads to underdosing, injection-site reactions, and relapse, all of which raise total cost. BasmiFIP's GS-441524 is 40 mg/ml at 99.4% purity, so what you pay for is what your cat actually receives.
Does BasmiFIP deliver nationwide, and is consultation really free?
Yes. We ship from Metro Manila to Mindanao, and expert consultation is included at no extra cost before, during, and after the 84-day protocol. That way the GS-441524 price you see is the GS-441524 price you pay, with clinical guidance built in.
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