FipX – Advanced Antiviral Therapy for Feline Infectious Peritonitis (FIP)FIP

Feline Infectious Peritonitis (FIP)

FipX

Advanced Antiviral Therapy for Feline Infectious Peritonitis (FIP)

4.2 · 10 reviews
€59.00Excluding Sales Tax
Cat's weight
  • EIDD-1931 15 mg60 capsules
  • Bundle discounts2-month treatment: 10% off · Full course: 15% off
  • Local warehouses
  • Treatment support
  • Prices in EUR

Description

FipX delivers pure EIDD-1931, the active antiviral metabolite of molnupiravir, in a formulation designed exclusively for feline physiology. EIDD-1931 does not require metabolization in the liver, thus significantly reducing liver stress typically associated with prolonged Molnupiravir (EIDD-2801) treatments. By using EIDD-1931 directly, rather than modifying human molnupiravir capsules, FipX provides a more potent, precise, and consistent veterinary-appropriate approach to FIP care, while significantly reducing any potential side effects associated with prolonged Molnupiravir treatments.

Purpose-Built Feline Formulation

Each FipX capsule contains 15 mg of EIDD-1931, equivalent in activity to approximately 66 mg of molnupiravir (EIDD-2801).

This formulation is optimized for:

  • Feline metabolic rate

  • Gastrointestinal absorption profile

  • Reliable dose–response performance

The result is accurate, predictable antiviral activity with reduced variability compared to human-intended products.

Antiviral Potency in Research

Published research demonstrates that:

  • EIDD-1931 exhibits up to 10× greater in-vitro antiviral potency compared with molnupiravir (EIDD-2801).

  • EIDD-1931 demonstrates 7.3× higher potency than GS-441524 under similar test conditions.

This potency advantage enables therapeutic efficacy at lower milligram doses, supporting improved tolerability and rapid clinical response.

Reference:

Molnupiravir and Its Active Form, EIDD-1931, Show Potent Antiviral Activity Against Enterovirus Infections In Vitro and In Vivo

https://www.mdpi.com/1999-4915/14/6/1142

Comprehensive Support Across FIP Presentations

MolnuFIP is formulated to support recovery across all major forms of FIP, including:

  • Wet FIP (effusive)

  • Dry FIP (non-effusive)

  • Mixed or transitional presentations

Additional formulation benefits:

  • Optimized for feline metabolism and tissue penetration

  • Highly consistent blood-level performance

  • Designed to support low relapse incidence when used according to veterinary guidance

Precision, Safety & Confidence in Every Dose

With FipX, your cat receives an advanced, veterinary-formulated antiviral designed for targeted and reliable performance:

  • Scientifically grounded formulation

  • Consistent mg-per-kg dosing

  • No need to modify human medications

  • Backed by modern antiviral research

FipX provides a clearer, more controlled path to FIP recovery, supporting your cat’s return to comfort, vitality, and quality of life.

Product description

Active Ingredient
EIDD-1931
Inactive Ingredient
Dibasic Calcium Phosphate, Magnesium Sterate
Form
Size #3 Capsules
Indications
Ideal for felines with effusive (wet) and non-effusive (dry) feline infectious peritonitis (FIP)
Specification
60 capsules, each containing 15 mg of EIDD-1931
Dosage
1 capsule every 12 hours for every 2.5 kg of body weight, preferably on an empty stomach.

If vomiting occurs within 30 minutes, administer another capsule.

Not Recommended Use

  1. Ocular or neurological FIP cases.

  2. Cats not feeding or defecating normally

  3. Cats with a history of poor dietary absorption.

Length of Treatment
Up to 60 days or as recommended by a veterinarian.
Storage
Store in a dry, cool place away from sunlight.

Packaging

Each pack contains 60 capsules in vacuum-sealed mylar bag.

For cats weighing up to 2.5kg package use 60 capsules every 30 days.

For cats weighing 2.5 to 5kg package use 120 capsules every 30 days.

For cats weighing above 5kg package contains 180 capsules every 30 days.

Expiration: 12 months

Shipping policy

All orders are processed and dispatched within 24 hours using secure, tamper-evident, and discreet packaging to safeguard product integrity during transit.

We offer fast local shipping to most destinations across Europe, GCC,, Asia, North America, and South America, with typical delivery times of 2–5 business days.

For destinations that require international shipping, shipments are handled by DHL and FedEx for maximum reliability and tracking accuracy.

Domestic deliveries are fulfilled through trusted local express couriers to ensure prompt arrival.

Dosage instructions

Dosage Instructions

Below 2.5kg, 1 capsules every 12 hours

2.5 kg ~ 5 kg, 2 capsules every 12 hours

Above 5 kg, 3 capsules every 12 hours

Dosing Examples

• Example 1: A 2.0 kg kitten diagnosed with the effusive (wet) form of FIP should receive one capsule every 12 hours.

• Example 2: A 4.6 kg adult cat diagnosed with the non-effusive (dry) form of FIP should receive two capsules every 12 hours.

Monitoring and Follow-Up

We strongly recommend that your cat receives a complete blood panel approximately every 30 days, in conjunction with ongoing evaluation by your primary veterinarian. Regular monitoring allows your veterinarian to assess clinical response and determine whether continued treatment, dose adjustment, or discontinuation is appropriate.

Reviews

4.2 ★★★★☆

10 reviews

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Your rating

  • ★★★★☆06/10/2026

    Bueno y efectivo con nuestros felinos.

    Debo admitir que este medicamento fue muy efectivo en ayudar a mi mazcotas que sufrian de este mal de Stomatitis por mucho tiempo, al principio dudamos de la efectividad pero en la tercera semana de tratamiento notamos la recesion de inflamacion en las encias, y el aumento de apetito por ahora estamos muy aliviados y optimistas. la orden fue facil y efectiva la transacción fue segura, el servicio al cliente fue buena ya que teniamos preguntas sobre la transacción que era en euros.

    Teddy
  • ★★★★★03/09/2026

    Leo is a New Cat

    Leo was a sick, homeless cat for most of his 5 years of life. Having all of his teeth removed did not resolve the calicivirus symptoms. After a few weeks on the CaliciX Max his appetite improved. The hardest part was getting him to take the capsules. He requires 4 a day. I started with 2 a day hidden in his food (in a pill pocket) but as his pain subsided I was able to up the dosage. Leo is much more social now and recently played with a toy for the first time. Thank you from us both xox

    Miren Garcia
  • ★★★★★14/07/2026

    The medicine works

    Hello all, Just to share our experience with this medicine for people that expect miracles from the first day i recommend patience. Forbthe first 3-4 weeks we was close to believe that it doesn't work but slowly the cat health started to improve and now their gums are not swallowing anymore and they're also not drooling. So the conclusion is that it is working for someone faster fro some slower but it works.

    Marius
  • ★★★★★27/04/2026

    Traitement efficace

    Bon produit avec amélioration des symptômes après 1 mois de traitement. Livraison rapide et site excellent

    Christina T
  • ★★★★★26/04/2026

    Recuperación total

    Mis 4 gatitas más de un mes con viales gs441524 y termine el tratamiento EDD 1931 y se an recuperado por completo

    Pilar Gracia · Verified purchase
  • ★★★☆☆10/04/2026

    Molnu calicix

    Il prodotto funziona . L’unico problema è che arriva in confezioni poco chiare e Qdi si spera che l’intero sia come indicato da sito ma nn c’è modo di virificare . Per la fip i dosaggi sembrano bassi . Ma per il calici vurus sn ok .

    Cristina · Verified purchase
See all 10 reviews
  • ★★★★★01/04/2026

    My purchase

    I am happy with the purchase I made.

    Istvan Kovacs · Verified purchase
  • ★☆☆☆☆23/03/2026

    Would Not Offer Refund

    I placed the order, and my cat had to be taken to the ER vet that same night, where she was put to sleep, sadly. They refused to refund me at all because they had already shipped the order. I could have returned it as soon as it arrived or just been given a refund based on the circumstances, but they refused.

    Tori Via-Hall · Verified purchase
  • ★★★★☆12/03/2026

    Mejoria

    Lo estoy probando con mi gata y ha dejado dedemel principio de babear y poco a poco se le está quitando lo rojo de las encías, está mucho más activa y animada.

    Rober · Verified purchase
  • ★★★★★08/03/2026

    Gengivoestomatite associada a Calicivirus

    No 3° dia o meu gato voltou a comer, a dor desapareceu. No 13° dia as lesões estavam reduzidas a 20%. Tratamento ainda em curso mas os resultados são surpreendentes. Depois de 1 ano passado em antibióticos, depo-medrol, extrações dentárias, em que nada resultou, o animal alimentado à seringa por recusa total em comer, com pânico da comida, das taças e de mim, este era o último recurso. Só lamento não ter tido conhecimento mais cedo do tratamento MolnuFip. Muito obrigada!

    Dulce Castro · Verified purchase

FAQs

FipX, answered.

See all FAQs
What is EIDD-1931?

EIDD-1931, is a mutagenic antiviral drug created by Emory Institute of Drug Development. It is related to Molnupiravir that are use to treat Covid 19 in humands and FIP in cats. EIDD-1931 garnered public attention in early 2023 following a series of independent clinical studies conducted by researchers and real world treatments conducted by veterinarians worldwide. These studies and treatments demonstrated EIDD-1931's effectiveness against feline infectious peritonitis (FIP).

How dangerous is FIP?

Feline infectious peritonitis (FIP) is a fast-progressing and devastating disease. Many cats can become critically ill within weeks if treatment is delayed, and without medical intervention, FIP has long been considered fatal. In the United States, treatment options such as GS-441524 can be extremely costly, often placing a heavy financial burden on families in addition to veterinary care.

MolnuFIP's EIDD-1931 offers a more accessible treatment option for cats diagnosed with FIP. It targets the virus responsible for the disease and has helped many cats show visible improvement within the first one to two weeks of treatment. When used under veterinary guidance, molnupiravir has demonstrated a favorable safety profile and has been associated with strong, lasting recoveries, giving cat owners renewed hope during an incredibly difficult time.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7114919/#:~:text=FIP%20is%20a%20fatal%20immune,found%20in%20cats%20%5B4%5D.

Do you have any studies proving the effectiveness of this EIDD-1931 treatment?

Yes. EIDD-1931 has been studied for FIP in several university and independent research projects. In these studies EIDD-1931 showed higher antiviral activity than Molnupiravir (EIDD-2801) and GS-441524, many treated cats improved within the first week, relapses were rare and side effects were fewer than with Molnupiravir (EIDD-2801). Treatment should always be guided by a veterinarian. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227765/

How soon can I expect recovery?

According to the clinical study published on the National Institutes of Health (USA), 46.2% of cats exhibit clinical signs of improvement within the first week, 84.6% within two weeks, and 92% by the third week. This is a good representation of real world treatment results. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9612227/

Is it true there are no injections?

Yes, MolnuFIP (EIDD-1931) is conveniently provided in easy-to-use soft gel capsules. The capsules can be given orally or opened and mixed with your cat’s food, making at-home treatment simple and stress-free.

Is EIDD-1931 suitable for all types and stages of FIP?

MolnuFIP (EIDD-1931) is suitable for many cats undergoing FIP treatment. In some situations, such as when a cat is experiencing digestive difficulties or neurological symptoms, veterinarians may advise starting with GS-441524 injections to help stabilize the condition more quickly.

GS-441524 is available through trusted providers like CUREFIP.COM (global) and BASMIFIP.COM (Southeast Asia). Once your cat shows signs of improvement, many owners find it convenient to transition to EIDD-1931 for ongoing care and simpler at-home administration, always with veterinary guidance.

Should I use EIDD-1931 for 84 days like GS-441524?

EIDD-1931 treatment is typically used for up to 60 days. Many cats begin with an initial 30-day course, which is often sufficient to achieve significant FIP viral load reduction and overall improvement. If symptoms have not fully resolved, treatment may be continued for an additional 30 days.

If symptoms persist beyond 60 days, it is important to consult your veterinarian. In some cases, your vet may recommend adjusting the treatment approach or transitioning to GS-441524 injectable to support continued recovery.

What are the recommended dosage?

One capsule every 12 hours, for every 2.5 kg of body weight. Capsules can be administer either on an empty stomach or with meal. If vomiting occurs within 30 minutes, administer another dosage.

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