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Calicix for Cats: What It Is and How It Works in the Gulf
CaliciX is CureFIP's feline calicivirus (FCV) positioned product, built around the antiviral ingredient EIDD-1931 and used mainly for oral disease such as stomatitis and gingivitis. It is given by mouth under veterinary guidance and is not intended for ocular or neurological cases or for cats that are not eating or defecating. Below, you will learn exactly what CaliciX is, how it works, who it suits, and what it costs in the Gulf.
A cat resting comfortably at home.
What is CaliciX for cats?
CaliciX is the FCV-positioned form of the EIDD-1931 oral capsule, the antiviral product CureFIP offers for feline calicivirus. In the live catalog it appears as EIDD-1931 Oral Capsules for FIP and FCV treatment, priced at AED149.00, and the CaliciX line is the naming used when the same active ingredient is directed at FCV oral disease.
Feline calicivirus is a common viral cause of mouth ulcers, drooling, painful gums, and upper respiratory signs in cats. CaliciX targets the virus itself rather than only easing symptoms, which is why it is discussed as an antiviral option rather than a supportive care product.
If you are still confirming your cat's diagnosis, it helps to read our full overview of feline calicivirus in cats and how to care for it in the Gulf before deciding on treatment.
How does CaliciX work?
CaliciX works through its active ingredient, EIDD-1931, an oral antiviral that interferes with how the virus copies itself inside the body. By slowing viral replication, it aims to reduce the viral load driving the painful oral and respiratory signs of feline calicivirus.
EIDD-1931 is the same class of oral antiviral chemistry CureFIP uses in its dual antiviral work, and here it is applied specifically to FCV oral disease such as stomatitis and gingivitis.
It is important to be transparent: antivirals address the virus, while antibiotics do not treat the virus itself and are used only for secondary bacterial infection. Your veterinarian will decide whether one, both, or neither is appropriate for your cat.
Which cats is CaliciX for?
CaliciX is aimed at cats with feline calicivirus oral disease, meaning mouth ulcers, gingivitis, stomatitis, drooling, and reluctance to eat because of oral pain. It is positioned for FCV cases where the mouth and gums are the main problem.
Common signs that lead caregivers toward FCV antiviral care include:
Ulcers on the tongue, gums, or hard palate
Drooling and pawing at the mouth
Refusing food or eating far less than usual
Bad breath and inflamed, red gums
Sneezing and nasal or eye discharge alongside oral signs
If your cat has stopped eating because of mouth pain, our guide on feline calicivirus mouth ulcers and why your cat won't eat explains what to watch for and when to act quickly.
CaliciX is not intended for ocular or neurological cases, or for cats that are not eating or defecating. In those situations, your veterinarian will guide you to a different plan.
A note for pregnant or lactating cats
EIDD-1931 is teratogenic, which means it should not be used in pregnant or lactating queens. Always tell your veterinarian if your cat is pregnant, nursing, or may be pregnant before starting any antiviral.
Is it FCV or feline herpesvirus?
Feline calicivirus (FCV) and feline herpesvirus (FHV-1) are two different viruses that can look similar, and the right product depends on getting this distinction correct. FCV is more strongly linked to mouth ulcers and oral inflammation, while FHV-1 more often drives eye disease and recurrent respiratory flare-ups.
This matters because CaliciX (the FCV-positioned EIDD-1931 line) is for calicivirus, and it is a different product from the famciclovir option used for herpesvirus. Do not assume one product treats both.
To tell them apart, see our comparison of feline calicivirus vs feline herpesvirus and our related breakdown of FHV-1 vs feline calicivirus respiratory infection. Your veterinarian can confirm which virus is involved.
What is the difference between CaliciX and CaliciX Max?
CaliciX and CaliciX Max both sit within the FCV-positioned EIDD-1931 line, and the difference is about presentation and how a given case is managed rather than a change in the core antiviral approach. Because the live catalog lists the FCV product as EIDD-1931 Oral Capsules for FIP and FCV treatment at AED149.00, that is the priced, dosed reference point we can state with certainty.
For any specifics on a CaliciX Max presentation, including whether it suits your cat's weight, severity, and case type, ask the CureFIP team or your veterinarian directly. We do not publish figures we cannot confirm, and we would rather point you to a person than quote a number that does not match your cat.
How is CaliciX dosed?
CaliciX dosing follows the EIDD-1931 Oral Capsules schedule in the catalog: 1 capsule (15 mg) per 2.5 kg of body weight, given every 12 hours, with a standard course of 60 days. Each bottle contains 60 capsules. Your veterinarian confirms the exact plan for your cat's weight and condition.
Detail | EIDD-1931 Oral Capsules (CaliciX line) |
Strength | 15 mg per capsule |
Dose | 1 capsule (15 mg) per 2.5 kg body weight |
Schedule | every 12 hours |
Pack | 60 capsules per bottle |
Duration | standard 60 days |
Price | AED149.00 |
Here is how a typical course tends to be organized in practice:
Your veterinarian confirms the FCV diagnosis and rules out ocular or neurological involvement.
Your cat's weight is used to set the daily dose, following the per 2.5 kg guidance above.
Capsules are given every 12 hours, consistently, for the standard 60 day course.
Your veterinarian reviews progress and decides on any adjustments.
Do not increase, split, or extend dosing on your own. If your cat cannot swallow capsules because of oral pain, tell your veterinarian rather than skipping doses.
What does CaliciX cost in the Gulf?
The FCV-positioned EIDD-1931 Oral Capsules are listed at AED149.00 per bottle of 60 capsules in the CureFIP Gulf catalog. Prices are shown in AED exactly as listed, and total cost depends on your cat's weight and the length of the course your veterinarian sets.
Because dosing is weight based (1 capsule per 2.5 kg every 12 hours), a heavier cat uses more capsules per day than a smaller cat, which affects how many bottles a 60 day course needs. Your veterinarian or the CureFIP team can help you estimate this for your specific cat.
How does CureFIP approach antiviral care?
CureFIP is best known as a GS-441524 specialist for Feline Infectious Peritonitis (FIP), and that same clinical rigor shapes how we present FCV care. Our FIP work sits behind a treatment network that has supported more than 100,000 cats since 2019, and that experience informs our transparency about what a product is, who it is for, and where its limits are.
For FIP, GS-441524 remains the antiviral at the core of modern treatment, with a 92% success rate reported by UC Davis (Pedersen, 2019) for injectable monotherapy. That figure belongs to FIP monotherapy and does not describe FCV outcomes, and we do not carry it across between different diseases or products.
For feline calicivirus specifically, we are equally clear about what the evidence does and does not show. There is no single published success rate we can responsibly quote for FCV antiviral treatment, so we do not attach one, and we route outcome expectations to your veterinarian who can assess your cat's response directly.
When should you see a veterinarian?
You should see a veterinarian as soon as your cat shows persistent mouth ulcers, stops eating, drools heavily, or has ongoing sneezing and eye or nasal discharge. These signs need a proper diagnosis before any antiviral is started.
Severe or long-standing oral inflammation can also be linked to feline chronic gingivostomatitis, and our article on feline chronic gingivostomatitis and FCV in cats explains how this connects to calicivirus. A veterinary exam is the safest way to match your cat to the right care.
FAQ
What is CaliciX for cats used for?
CaliciX is used for feline calicivirus (FCV) oral disease, including mouth ulcers, stomatitis, and gingivitis. It is the FCV-positioned form of the EIDD-1931 oral capsule and is given under veterinary guidance.
What is the active ingredient in CaliciX?
The active ingredient in CaliciX is EIDD-1931, an oral antiviral that works by interfering with how the virus replicates. In the CureFIP Gulf catalog it is listed as EIDD-1931 Oral Capsules for FIP and FCV treatment at AED149.00.
How is CaliciX dosed for cats?
The catalog dosing for the EIDD-1931 Oral Capsules is 1 capsule (15 mg) per 2.5 kg of body weight, every 12 hours, for a standard 60 day course, with 60 capsules per bottle. Your veterinarian confirms the exact plan for your cat.
Can CaliciX be used for eye or neurological problems?
No. CaliciX (EIDD-1931 Oral Capsules) is not intended for ocular or neurological cases, or for cats that are not eating or defecating. Speak with your veterinarian about the right option if your cat has these signs.
Is CaliciX safe for pregnant cats?
No. EIDD-1931 is teratogenic and should not be used in pregnant or lactating queens. Always tell your veterinarian if your cat is or may be pregnant before starting treatment.
If your cat is showing signs of feline calicivirus, the best next step is to understand your options clearly and act with a professional beside you. You can explore the FCV antiviral products and speak with our team on the CureFIP Gulf website, and always confirm the final plan with your own veterinarian.
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