After One Week on GS-441524: What Changes to Expect in Your Cat

Summary:

• All FIP cats show visible signs of improvement after 7 days of GS treatment. If there is no improvement, your cat does not have FIP.

• Appetite, energy levels, and fever often normalize first.

• Mild symptoms of fatigue, diarrhoea, or skin irritation from injections may occur.

• Weekly monitoring of weight, body temperature, and behavior provide clues of the recovery speed.

Starting GS-441524: The Critical First Week of FIP Treatment

GS-441524 by BasmiFIP is one of the most effective medications for feline infectious peritonitis (FIP), helping more than 87,000 cats across 54 countries return to full health since 2019.

The first week of treatment is critical. Knowing what to expect during this period can give you confidence and help you stay committed to your cat’s recovery journey.

Once your cat is diagnosed with FIP, it is essential to begin GS-441524 treatment immediately. Starting early offers several key advantages:

• Faster recovery and visible improvement

• Shorter overall treatment duration

• Fewer veterinary visits

• Lower total treatment costs

To support you, we’ve compiled a day-by-day guide for the first seven days of treatment. This report is based on veterinary insights, real-world treatment cases, and feedback from thousands of cat owners worldwide, providing a realistic, clinically informed timeline of what to expect during this crucial first week.

Day 0: Preparing for the First Dose

Before You Begin GS-441524 Treatment

Before administering GS-441524 injections, always confirm the correct dosage with BasmiFIP™ treatment advisors, based on your cat’s:

• Current weight

• FIP type (wet, dry, neurological, or ocular)

• Injection site (back of the neck, above the hip bone, or behind the shoulder blades)

Recommended starting doses:

• Wet FIP: 6 mg/kg

• Dry FIP: 8 mg/kg

• Neurological or Ocular FIP: 10 mg/kg

Using the correct dosage from the start ensures faster recovery and higher treatment success rates.

If You’re Administering at Home

If your cat requires injections at home, prepare the following supplies in advance from your local pharmacy:

• Sterile syringes and needles

• Gloves

• Alcohol disinfectant pads

• A treatment tracking journal (to record dosage, injection sites, and your cat’s daily progress)

⚠️ Important Safety Notes

• Never reuse injection needles—use a fresh, sterile needle each time.

• Dispose of used needles in a secure container to prevent accidents, especially in households with children.

Days 1–2: Subtle Changes

Within the first 24–48 hours, many cats show early signs of improvement:

• Fever begins to subside

• Signs of hunger / seeking food

• Slightly more active or energetic

• Seeking owner’s attention.

Alongside GS-441524 therapy, continue with any supportive treatments prescribed by your veterinarian, which may include:

• Anti-inflammatory medication

• Antibiotics (if secondary infections are suspected)

• Appetite stimulants

• Vitamin B12 supplements

• Other supportive therapies as needed

If your cat is still refusing food by the end of Day 2, do not panic. Some FIP cases take longer to respond to antiviral therapy. In these situations:

• Maintain supportive care, including assisted feeding to ensure adequate nutrition.

• Provide hydration support as directed by your veterinarian (oral fluids, subcutaneous fluids, or IV if recommended).

• Monitor your cat’s condition daily, and keep detailed notes in your treatment journal.

Tip: Consistency and patience are crucial—the early phase of treatment can vary from cat to cat, and steady supportive care greatly improves the likelihood of recovery.

Days 3–5: Stronger Appetite and Renewed Energy

For many cats, day 3 is a turning point. Owners commonly report:

• Significant increase in appetite

• Improved mobility and activity

• Better grooming behavior

• Increased sociability and responsiveness

Cats that were hiding or isolated often begin to move around the house more confidently and seek attention from their owners.

Tip: Keep a daily journal of food intake, water consumption, litter box habits, behavior changes, recorded weight, and daily dose volume given. This will help you and your vet monitor response and adjust treatment if needed.

Days 6–7: Visible Recovery, Minor Side Effects

By the End of Week One

Most cats show consistent and significant improvements, with reduction or elimination of 1 to 2  clinical symptoms during the first week of GS-441524 treatment. However, some minor side effects can also appear at this stage:

• Skin inflammation at injection sites (common with subcutaneous injections)

• Diarrhea or mild nausea (more common with oral GS-441524)

• Fatigue or muscle soreness

➡️ These side effects are temporary and manageable—they are part of the healing process.

• Rotate injection sites daily to minimize skin irritation.

• If administering oral capsules but your cat shows little progress or worsening symptoms, switch to injections immediately. This often indicates digestive issues that need to heal before oral therapy is effective.

When to Adjust Dosage or Seek Immediate Care

If your cat’s condition continues to decline, or if you observe:

• Seizures

• Sudden jaundice (yellowing of gums, eyes, or skin)

• Persistent vomiting

👉 These are warning signs that the dosage may be insufficient. Increase the dosage by 20% or follow your veterinarian’s guidance.

Important to Remember

• Not all cats respond the same way to FIP treatment.

• Complications such as misdiagnosis or concurrent illnesses (e.g., FeLV, toxoplasmosis) can interfere with GS-441524’s effectiveness and recovery speed.

• Close monitoring, accurate diagnosis, and timely dosage adjustments are key to achieving treatment success.

End of Week One Checklist

By the close of the first treatment week, it’s important to reassess your cat’s progress and adjust care as needed:

1. Monitor and Adjust Dosage

• Record your cat’s current weight and update the dosage accordingly.

• Accurate dosing ensures the medication remains effective as your cat gains or loses weight during treatment.

2. Reassess Key Health Indicators

• Temperature — Has the fever subsided?

• Appetite — Is your cat eating more consistently?

• Energy levels — Is there noticeable improvement in activity or responsiveness?

3. Communicate with Your Support Team

• Share updates, concerns, or unusual symptoms with your treatment advisor or veterinarian to stay on track.

If No Improvement is Observed

If your cat shows little or no progress after the first week, consider the following:

• Dosage adjustment: The GS-441524 dose may be too low — increase by 20% or as guided by your veterinarian.

• Potential misdiagnosis or co-infections: Conditions such as FeLV, toxoplasmosis, or other illnesses may complicate recovery.

• Adjunct therapies: Supportive medications (e.g., anti-nausea drugs, steroids, appetite stimulants) may be required to help stabilize your cat.

Oral vs. Injection: What to Watch in Week One

Injection GS-441524:

• Faster recovery in severe cases.

• Requires visit to doctors for injections or knowledge of injection for DIYers.

• Prevent skin irritation by changing injection site everyday.

Oral GS-441524:

• Easy to administer.

• Ideal for compliant eaters and cats sensitive to injections

• Watch for: vomiting, inconsistent absorption if not administered according to instruction.

Note: Oral GS-441524 can be given directly or mixed with food and snacks.

Final Thoughts: Stay Committed, Stay Observant

The first week of GS-441524 treatment offers an important glimpse into your cat’s recovery journey. While not all cats show dramatic improvements in the first few days, many begin their healing process during this critical period.

Stay observant, patient, and proactive. Pairing GS-441524 with consistent supportive care and symptom management gives your cat the best chance to overcome FIP and move toward full recovery.

And remember—you are not alone in this journey. Our team is here to guide and support you every step of the way.

FAQs: FIP Treatment and GS-441524

Q: Is it normal if my cat doesn’t improve after 7 days of treatment?

A: No. If your cat doesn’t show improvements after 7 days of treatment, he is either misdiagnosed (doesn’t have FIP), need higher dosage, or need to change from oral to injection form of GS-441524.

Q: Can I switch from injection to oral GS after week one?

A: No, not unless directed by your vet or treatment provider. Injections are often preferred for the first 2 to 4 weeks, especially for severe FIP cases.

Q: How do I know the GS is working?

A: Signs of recovery often come in the following for: Increasing energy level, increasing appetite, increasing weight, reduction of fever, more alertness and interaction with owners.

Q: What if I miss a dose?

A: If you miss a scheduled dose, administer it as soon as possible. Then, wait 24 hours before giving the next dose. Do not double-dose to make up for the missed injection or capsule.

Conclusion

• Most cats with FIP show noticeable improvement within the first 7 days of GS-441524 treatment.

• Appetite, energy, and fever are typically the first signs to normalize.

• Daily monitoring is essential to track progress and catch potential issues early.

• Minor side effects may occur but are usually temporary and manageable.

• When using oral GS-441524, correct administration is critical to ensure proper absorption and effectiveness.