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Feline Infectious Peritonitis (FIP) is a devastating disease, but there is hope with GS-441524, an antiviral medication that has shown remarkable success in treating FIP. This guide will walk you through the treatment process based on the information provided by EMUNE.

Treatment Overview:

GS-441524 is an injectable medication administered daily for 84 days. This treatment can be done by a veterinarian or, with proper instruction, at home. (How to perform an injection by yourself)

Before you begin

  1. Confirm diagnosis (Blood test, Rivalta test, or RT-PCR) because FIP shares clinical features with other diseases (For exmaple: Lymphoma)

  2. Identify FIP form (Wet, Dry, Neuroloigal, Ocular or Unclasical FIP) Learn more about FIP

  3. Choose a suitable concentration of medicine. (For Example 20mg, 30mg and 40mg)

Step-by-Step Treatment Protocol:

  • Injectable Medication: GS-441524 is delivered through subcutaneous injections (under the skin). (Lern more What is GS)

  • Treatment Duration: The full course of treatment is 84 days.

  • Consistent Timing: Injections should be given at the same time each day, with a maximum allowance of 2 hours before or after the preferred time.

  • Weekly Weigh-ins: Monitor your cat's weight every 7 days to track their progress and adjust the dosage as needed. Espcially first 14 of treatment cat's weight increase rapidly.

  • Bi-Weekly Blood Tests: Blood tests should be conducted every 14 days to assess your cat's response to treatment and determine if dosage adjustments are necessary.

  • Dosage Adjustments: The dosage may be increased by 0.1 cc. To decrease a relpase and recurrent rate.

Typical Progress During FIP Treatment


  • 1-3 Days: Increased appetite and food intake.

  • 4-5 Days: Regaining energy and grooming themselves more often.

  • 7-15 Days: Fluid accumulation in the abdomen (wet FIP) stops increasing and may start to decrease.

  • 30-45 Days: Fluid in the abdomen (wet FIP) completely resolves.


  • 1-3 Days: Increased appetite and food intake.

  • 4-5 Days: Regaining energy and grooming themselves more often.

For ocular and neurological FIP, the recovery period is influenced by the degree of viral impact on the nervous system. More extensive damage may result in a longer recovery time.

Important Note: Every cat is different, and the rate of improvement can vary depending on several factors, including the severity of the disease, the cat's overall health, and individual response to treatment

Side Effects

  • Skin Burns at Injection Sites: Some medications used to treat FIP contain acidic ingredients that can cause skin burns. If this occurs, the injection site will be temporarily avoided, and the wound will be treated. Once healed, the fur typically grows back normally.

  • Elevated Liver Enzymes: The use of multiple medications during FIP treatment can lead to elevated liver enzymes. However, this elevation is usually not severe enough to cause liver disease. Liver supplements like SAMe can help support liver health and bring enzyme levels back to normal.

Important Consideration

  • Follow the Instructions: Strictly adhere to the instructions provided by EMUNE and your veterinarian.

  • Monitor Your Cat: Observe your cat for any changes in appetite, behavior, or overall health. Report any concerns to your veterinarian immediately.

  • Consult Your Veterinarian: Normally FIP cant always has overlapping symtoms like anemia and vomitting more over this, Always work closely with your veterinarian throughout the treatment process.

Post-Treatment Care for Cats with FIP after GS-441524

Following the completion of the 84-day GS-441524 treatment for FIP, it's important to continue monitoring your cat's health closely.

Two follow-up blood tests are recommended on days 42 and 84 of the recovery period to assess the treatment's effectiveness. It's also advised to postpone any spaying or neutering procedures during these 84 days, though they can be performed afterward with a prior health check. If its happen don't heisitate to reach out to us we will provide relapse program guarantee to help you.

Regular activities like vaccination, flea and tick prevention, and bathing can continue as usual, but it's recommended to conduct a health check before administering any vaccines to ensure your cat's well-being.

Additional Care Tips:

To prevent relapses, avoid activities that might stress your cat. These can include frequent travel, sudden changes in food or environment, excessive bathing, introducing new cats to the household, overcrowding, or neglecting litter box cleaning. These factors can contribute to stress accumulation and weaken your cat's immune system, potentially triggering a viral resurgence.

Aim Vector

Specific Treatment

Focus on inhibiting of FIPV replication by using GS-441524

Cat Vector
Symptomatic Treatment
Based on the symptoms the cat shows during treatment
Cat over hands vector
Supportive Treatment
is to gain back the cat's health before we finish the treatment


84 Days
Treatment Period

The duration of FIP treatment with Emune is at least 84 days continuously by

  • Every 7 Days Weight the cat to see progress

  • Every 14 Days Perform blood test and increase inject amount 0.1cc

84 Days
Observation Period

After finish the injection course we need to observe the cat to confirm that the cats successfully got rid of FIP

Please keep in mind that, it is extremely important to follow very closely all instructions & guidance given by Emune to ensure your cat has the best possible recovery journey and survival rate.

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