What to Expect During Your Cat’s First Week on GS-441524 Treatment
- CURE FIP™ OCEANIA
- Aug 21, 2025
- 4 min read
Summary:
Most FIP cats show noticeable improvement within the first 3–7 days of GS treatment.
Appetite, energy levels, and fever are usually the first signs to improve.
Mild setbacks like tiredness, digestive changes, or skin irritation from injections can occur.
Monitoring weight, temperature, and behaviour early is essential.
Keeping daily notes helps track progress and pick up on complications quickly.

When your cat is first diagnosed with Feline Infectious Peritonitis (FIP), quick action matters. It’s important to consult a veterinarian immediately to determine the treatment plan.
GS-441524 from CureFIP has helped thousands of cats regain their health. Still, the first week of treatment is critical. Knowing what to expect will help you feel confident and stay committed throughout the process.
This guide draws on veterinary insights, real-world case studies, and reports from thousands of cat owners worldwide. Below is a realistic, science-based timeline of what usually happens in the first seven days.
Day 0: Preparing for the First Dose
Before starting GS-441524, confirm the correct dosage based on your cat’s:
Weight (kg)
FIP type (wet, dry, neurological, or ocular)
Administration route (oral vs injection)
Typical starting dosages:
Wet FIP: 6 mg/kg
Dry FIP: 8 mg/kg
Neurological or ocular FIP: 10 mg/kg
If symptoms worsen or progress stalls, a higher dose may be needed.
Make sure the diagnosis and dosage plan are accurate. If unsure, always check with your treatment provider.
Prepare a calm, quiet space for your cat. Have everything ready:
Syringes and separate needles (one for drawing, one for injecting) or oral capsules/tablets
Gloves and alcohol pads
A journal for daily tracking
⚠️ Never use the same needle for both drawing and injecting.
Days 1–2: Subtle but Vital Changes
Within the first 24–48 hours, many cats show early improvements:
Fever begins to drop (if present)
Appetite starts to return
Lethargy eases a little
Cats may begin seeking food or attention again
If your cat hasn’t shown progress yet, don’t panic. Some FIP cases take longer to respond.
Keep up supportive care — appetite stimulants, hydration, and comfort can help.
Days 3–4: Stronger Appetite and Renewed Energy
For many cats, day 3 is the turning point. Common changes include:
Noticeable increase in appetite
More energy and better mobility
Improved grooming habits
Increased interaction and responsiveness
In wet FIP cases, abdominal swelling may start to reduce. Cats that were hiding often come out more and move confidently around the house.
💡 Tip: Keep a daily log of:
Food and water intake
Litter box habits
Behavioural changes
Weight
Dosage given
This helps track progress and ensures your vet can make adjustments if needed.
Days 5–6: Visible Recovery, Minor Side Effects
By the end of the first week, most cats show improvement in at least two or three signs.
Some minor side effects can also appear:
Injection GS-441524: redness or swelling at the injection site (use a warm compress to ease discomfort).
Oral GS-441524: mild nausea or diarrhoea.
General fatigue or mild muscle soreness.
These are usually temporary. To reduce discomfort, rotate injection sites. Oral capsules may need adjusting if your cat gains weight. If symptoms stall or worsen, returning to injections may be necessary.
⚠️ Seek urgent veterinary advice if your cat:
Declines further
Has seizures
Develops jaundice or sudden vomiting
This may mean the dosage is too low. In some cases, misdiagnosis or coinfections (like FeLV or toxoplasmosis) can also affect treatment response.
Day 7: Reassess and Plan Ahead
By the end of week one:
Record your cat’s new weight
Check temperature, appetite, and energy
Share updates with your treatment support team
If there’s no improvement at all, reassess:
GS-441524 dosage and product quality
Possible misdiagnosis or additional infections
Whether supportive medications are needed
But in most cases, cats keep getting stronger over the following weeks.
Oral vs Injection: What to Watch in Week One
Injection GS-441524
Faster acting in severe or neurological FIP
Requires careful technique
Watch for: ulcers, abscesses, pain
Oral GS-441524
Easier for long-term use
Good for cats sensitive to injections
Watch for: vomiting or poor absorption if not given correctly
👉 Oral GS can be given directly or with a small portion of wet food.
Final Thoughts: Stay Committed, Stay Observant
The first week of GS-441524 is a key stage in your cat’s recovery journey. While some cats respond quickly, others may take more time. The main thing is to stay consistent and keep monitoring.
Recovering from FIP is a marathon, not a sprint. With steady care, proper monitoring, and the right dosage, your cat can continue improving week after week.
And remember — we’re here to support you every step of the way.
FAQs: FIP Treatment and GS-441524
Q: Is it normal if my cat doesn’t improve in the first few days?
A: Yes. Cats with dry, ocular, or neurological FIP often take 5–14 days to show progress.
Q: Should I switch from injection to oral GS in week one?
A: Not usually. Injections are preferred in serious cases for the first 1–4 weeks unless advised otherwise.
Q: How do I know the GS is working?
A: Look for steady trends: more appetite, energy, weight gain, and less hiding. Daily logs are key.
Q: What if I miss a dose?
A: Give it as soon as you remember. Missing doses early in treatment can reduce effectiveness.
Conclusion
Most cats with FIP improve within 3–7 days of GS-441524 treatment.
Appetite, energy, and fever are often the first signs to normalise.
Daily monitoring helps spot issues early and track recovery.
Side effects like mild nausea or injection site reactions are common but manageable.
Correct GS administration is essential for success.
