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Specialists available now

Your cat can recover from three viruses.

Clinically studied antivirals for Feline Infectious Peritonitis (FIP), Feline Calicivirus (FCV) and Feline Herpesvirus (FHV-1). Trusted by cat owners in Malaysia since 2019.

FIP Treatments FCV Treatments FHV Treatments
  • Free specialist consultation
  • Fast delivery across Malaysia
  • Oral and injectable options
  • Treatment under veterinary guidance
A veterinarian in Malaysia holding a healthy orange tabby cat
Conditions treated 3
  • FIP
  • FCV
  • FHV-1
  • 100K+ Cats treated and supported since 2019
  • 3 Feline viral infections we treat
  • 2019 Trusted in Malaysia since
A veterinarian in Malaysia examining the eyes of a calm long-haired calico cat
Now available 3
  • CaliciX
  • CaliciX Max
  • HerpX
New treatment

Now treating Feline Calicivirus and Feline Herpesvirus.

BasmiFIP is no longer only about Feline Infectious Peritonitis. CaliciX and CaliciX Max are oral antiviral options for FCV, and HerpX is an oral famciclovir option for FHV-1. Both are given at home, under veterinary guidance.

  • Oral capsules
  • Given at home
  • Two strengths for FCV
View CaliciX View HerpX

Speak to our specialists before starting any antiviral course, so the right product and the right dose are matched to your cat.

How it works

From your first message to the end of the course.

Three steps, with a specialist alongside you for all of them.

  • A cat owner at home with her grey and white cat, reaching out for advice on her phone

    01

    Talk to a specialist

    Tell us what you are seeing and how much your cat weighs. Our specialists help you work out which infection is being treated and what the course involves. There is no charge for this.

  • A cat owner at home giving his tuxedo cat an oral capsule

    02

    Start the right treatment

    Feline Infectious Peritonitis, Feline Calicivirus and Feline Herpesvirus each have their own antiviral. Once the right one is confirmed, treatment is given at home.

    • FIP: GS-441524
    • FCV: CaliciX
    • FHV-1: HerpX
  • A brown tabby cat resting comfortably in the sun at home while its owner watches

    03

    Stay supported to the end

    Send us updates as you go. Doses are checked against your cat's weight, and we stay with you until the full course is finished.

Beyond FIP

Two more infections, side by side.

Different viruses, different signs, different antivirals. Here is what each one affects and what it is treated with.

  • A healthy cream and white long-haired cat eating well from a bowl at home
    FCV

    Feline Calicivirus

    Mainly affects the mouth and the upper airway. Cats often go quiet and stop eating, because eating is what hurts. CaliciX and CaliciX Max are oral EIDD-1931 antivirals given at home, under veterinary guidance.

    • Mouth ulcers
    • Drooling
    • Sneezing
    • Loss of appetite
    2Strengths
    OralCapsules
    HomeWhere it is given
    View CaliciX
  • A healthy seal point cat resting at home with clear, bright eyes
    FHV-1

    Feline Herpesvirus

    Mainly affects the eyes and the upper airway. The eyes are usually where an owner notices it first. HerpX is an oral famciclovir tablet given at home, under veterinary guidance, with no injections involved.

    • Watery eyes
    • Sneezing
    • Nasal congestion
    • Squinting
    180 mgPer tablet
    60Tablets
    0Injections
    View HerpX
FIP

Feline Infectious Peritonitis

The infection BasmiFIP was built around, and still the one most owners arrive here for. It appears in several forms, and the treatment is the same antiviral family in each of them, given under veterinary guidance.

  • Effusive, wet
  • Non-effusive, dry
  • Ocular
  • Neurological
View FIP treatments Dosage calculator Relapse programme

FIP medicines

3

Injectable and oral, matched to your cat's weight.

  • GS-441524 Injectable
  • GS-441524 Oral
  • EIDD-1931 Oral
  • 92%
    Reported success rate for GS-441524 in Feline Infectious Peritonitis
    Source: UC Davis
  • 84 days
    Standard length of the treatment course
  • 2
    Ways to give it, by injection or by mouth
Supportive care

Looking after the organs that work hardest.

BasmiFIP is an official distributor of RX Sciences products. These are nutritional supplements for the liver and kidneys, chosen for their ingredients and given alongside ordinary care.

  • LiverRx liver support supplement for cats
    Cats and dogs under 10 kg

    LiverRx

    A tablet intended to support normal liver function. Give one hour before a meal, whole, without crushing or splitting.

    • SAMe 90 mg
    • Silybin 24 mg
    • Vitamin E 13 mg
    • Vitamin C 10 mg
    RM 159 View
  • KidneyRx kidney support supplement for cats and dogs
    Cats and dogs

    KidneyRx

    A nutraceutical intended to support normal kidney function and urinary tract health, combining mineral binders, antioxidants and omega-3 fatty acids.

    • L-Carnitine
    • Chitosan
    • Omega-3 EPA and DHA
    • Vitamin D 50 IU
    • Cranberry extract
    RM 159 View
  • LiverRx liver support supplement for larger dogs
    Dogs above 10 kg

    LiverRx for Dogs

    The same formulation at a higher strength. One tablet daily for dogs 11 to 20 kg, two tablets daily for dogs 21 to 30 kg.

    • SAMe 225 mg
    • Silybin 24 mg
    • Vitamin E 13 mg
    • Vitamin C 10 mg
    RM 179 View

These are supplements, not antiviral medicines. They are intended to support normal organ function and do not replace any treatment. Speak to your veterinarian before adding a supplement, particularly if your cat or dog is already on medication.

Common questions

Answers, by infection.

Feline Calicivirus

What is Feline Calicivirus?
A common virus in cats that mainly affects the mouth and the upper airway. It spreads easily where cats live together.
What are the usual signs?
Ulcers in the mouth, drooling, sneezing and a drop in appetite. Some cats go quiet simply because eating hurts.
What is used to treat it?
CaliciX and CaliciX Max, both oral EIDD-1931 capsules given at home under veterinary guidance.
What is the difference between CaliciX and CaliciX Max?
Strength. CaliciX is 15 mg of EIDD-1931 per capsule and CaliciX Max is 30 mg. Which one suits your cat is decided with a specialist.
How long does treatment take?
That depends on the individual cat and on how it responds. Your veterinarian and our specialists will set the course with you rather than to a fixed timetable.
Can it spread to my other cats, or to me?
It spreads between cats through saliva and nasal secretions, so separate food bowls and good hygiene help. It does not infect people.
My cat will not eat. What can I do?
Eating can be genuinely painful with mouth ulcers. Soft or warmed food is often easier. If appetite does not return, tell your veterinarian, because appetite is one of the things they will want to track.

Feline Herpesvirus

What is Feline Herpesvirus?
A common feline virus that mainly affects the eyes and the upper airway. It is also called FHV-1.
What are the usual signs?
Watery eyes, sneezing, a blocked nose and squinting. Owners usually notice the eyes first.
What is used to treat it?
HerpX, a 180 mg famciclovir tablet supplied in packs of 60, given by mouth at home under veterinary guidance.
Are injections involved?
No. HerpX is given by mouth only.
How is the dose worked out?
By your cat's weight, confirmed with a specialist before you start. Do not work it out from a human dose.
Can it spread to my other cats, or to me?
It spreads between cats. It does not infect people.
What if the signs come back later?
Speak to your veterinarian or to us before doing anything. Do not restart a course on your own.

Feline Infectious Peritonitis

What is Feline Infectious Peritonitis?
A serious disease that develops from a mutation of feline coronavirus. It appears in effusive (wet), non-effusive (dry), ocular and neurological forms.
What is used to treat it?
GS-441524, given either by injection or by mouth, and EIDD-1931 as an oral option. Which route suits your cat is decided with a specialist.
How long is the course?
84 days is the standard length.
Injection or oral, which is better?
Neither is automatically better. It depends on your cat's condition, weight and how well it takes medication. Talk it through before you buy, because changing course later costs time.
How is the dose worked out?
By weight, and it is rechecked as the weight changes. The dosage calculator gives you a starting point, and a specialist confirms it.
Can I stop early if my cat looks well?
Finish the full course, and speak to a specialist before making any change. A cat can look well long before the course is complete.
Is there any support after treatment ends?
Yes. There is a relapse programme, and the details are set out on its own page.

Still not sure? Our specialists answer questions before you buy anything.

See all questions
From our customers

What cat owners say.

Left by customers on our product pages, in their own words.

  • Verified

    Effective

    Yami is diagnose with FIP and started the treatment right away. After 2 days my cat gain strength to eat. We are still in progress with the treatment and I can see that my cat is getting better! Thanks Basmi! 🫯

    20 July 2026

  • Verified

    Sylver's FIP journey

    I purchased Basmi GS for my cat which was diagnosed with Neuro FIP. On his 4th day, he showed improvement and started eating again. Hoping for him to regain his strength back as we continue the 84days treatment.

    4 June 2026

  • Verified

    4 of my cats have been diagnosed with FIP. All 4 were confined. 2 cats have shown significant improvement -- they have good apetite and can now eat on their own. They are more active compared to when the were first confined. These 2 have now been discharged. While the other 2 still have no apetite and are only syringe fed. They're still weak and we are yet to see improvement from the both of them.

    11 May 2026

  • Verified

    Grey was a stray 1 month old kitten when she entered our home. We decided to take care of him. We moved to a new house and it took a month for us to find a nearest vet. When we took him, we found out he has Corona Virus and eye infection . We were recommended this product. We are hopeful he will recover using this product. Please pray for his fast recovery. Thank you BasmiFIP for creating this medicine for our furbabies.

    4 March 2026

  • Verified

    alhamdulillah sgt berkesan utk kucing sy

    31 January 2026

  • Verified

    Keberkesanan produk yang sgt bagus untuk kucing saya. Seller very responsive. Delivery also quite fast. Thank you!

    24 December 2025

  • Verified

    Effective, Highly Recommended

    First of all, I would like to thank BasmiFIP for having this life-saving GS treatment available for purchase locally. Apparently, our cat's (tsuki) health has improved a lot just after 2 weeks of treatment. Hoping for his continuous recovery. Sharing here his photos before the treatment started and after 2 weeks of GS treatment.

    Leo Angelo Buenavista3 February 2025

  • Lifesaver, Gave my Cat a Fighting Chance

    GS-441524 saved my cat. He is on his 8th day of treatment, and the improvement is amazing. He can now eat on his own, drink lots of water, and even grooms himself. His fever is gone, and his breathing is no longer labored. The liquid from his belly has already reduced significantly. I am hopeful that he will continue to improve each day.

    Jade Sibal3 October 2024

Reviews are shown exactly as they were written, spelling and shorthand included. Names are shortened the way the store shows them.

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