Cat Is Weak and Refusing to Eat? Learn the Signs of FIP and How to Treat It – BasmiFIP Philippines 2025

A cat that suddenly becomes weak and refuses to eat is always a worrying sign for pet owners. This condition may arise from stress, environmental changes, minor infections, or more serious diseases like Feline Infectious Peritonitis (FIP).

Loss of appetite is not a behavioural problem but a signal that your cat’s body is struggling with an internal health issue. Recognising the cause early and responding appropriately is key to ensuring your cat’s recovery.

Common Reasons Why Cats Become Weak and Refuse to Eat

Cat Is Weak and Refusing to Eat? Learn the Signs of FIP and How to Treat It – BasmiFIP Philippines 2025

Stress and Environmental Changes

Cats are extremely sensitive to changes in their surroundings. Loud noises, relocation, or the presence of a new pet can easily cause stress, leading to appetite loss.Solution: Create a calm and stable environment. Avoid sudden disruptions and give your cat time to adjust.

Unsuitable Food

Cats can be selective with taste and smell. A sudden change in food brand or flavour can result in rejection.Solution: Transition gradually by mixing the old and new food over several days until your cat accepts the new diet.

Dental or Oral Problems

Conditions like gingivitis, tooth decay, or mouth ulcers can make chewing painful.Solution: Have your cat’s mouth checked by a veterinarian if you notice drooling, pawing at the mouth, or reluctance to eat dry food.

Digestive Disorders or Infection

Issues like vomiting, diarrhoea, or intestinal infection are common in tropical climates such as the Philippines and can easily affect appetite.Solution: Ensure your cat stays hydrated, feed soft or easily digestible food, and visit the vet if symptoms persist.

When a Cat Refuses to Eat for More Than 24 Hours

If your cat has not eaten for over 24 hours, it may be at risk of hepatic lipidosis (fatty liver disease), which can be life-threatening.Prolonged fasting or weakness accompanied by fever and dehydration could also indicate Feline Infectious Peritonitis (FIP) — a viral disease that requires immediate medical attention.

Understanding FIP: The Hidden Cause Behind Weak Cats That Refuse to Eat

What Is FIP?

Feline Infectious Peritonitis (FIP) is a disease caused by a mutation of the FIP Virus — a mutated form of the feline coronavirus that becomes aggressive and infects vital organs such as the liver, kidneys, brain, and digestive system.Once the virus mutates, it triggers widespread inflammation, reducing energy, affecting appetite, and weakening the cat’s overall condition.

Common Signs of FIP

Based on data collected by BasmiFIP Philippines, the following are the most common symptoms observed in cats with FIP:

• Significant loss of appetite

• Rapid and unexplained weight loss

• Persistent fever unresponsive to antibiotics

• Swollen abdomen due to fluid buildup (wet FIP)

• Dull, yellowish, or cloudy eyes

• Unsteady or wobbly gait

If your cat shows two or more of these symptoms, consult a licensed veterinarian immediately for diagnostic testing.

Why Cats with FIP Refuse to Eat

Loss of appetite in FIP cases is caused by:

• Inflammation of internal organs, which interferes with digestion

• High fever and body pain, making eating uncomfortable

• Liver and kidney dysfunction, leading to nausea

• Overactive immune response and anaemia, resulting in fatigue and weakness

A cat that refuses to eat is not being difficult — it is physically unable to process food due to inflammation and the effects of the FIP virus.

How to Treat a Sick Cat That Refuses to Eat Due to FIP

Treatment with GS-441524 (FIP Antiviral Therapy)

The antiviral GS-441524 remains the most effective treatment for cats with FIP, including those that show weakness and appetite loss.This medication works by stopping the replication of the FIP Virus, allowing the cat’s immune system to recover and heal.

BasmiFIP Philippines is the official regional provider of GS therapy and offers:

• Genuine GS medication (injection and oral forms)

• Tailored dosing based on the cat’s weight and condition

• Ongoing blood test monitoring

• Step-by-step treatment guidance until full recovery

Hundreds of cats across the Philippines have achieved full recovery through proper GS treatment under BasmiFIP’s expert care and support.

When to Contact BasmiFIP Philippines

If your cat shows any unusual signs, always seek a veterinary diagnosis first, since similar symptoms can occur with other illnesses. Laboratory confirmation is essential before starting any treatment for Feline Infectious Peritonitis (FIP).

You should consult a veterinarian immediately if your cat:

• Has not eaten for more than 24 hours

• Appears weak, tired, or feverish

• Experiences rapid weight loss

• Has a swollen belly or laboured breathing

Once your cat is diagnosed with FIP, contact BasmiFIP Philippines for expert consultation, dosage calculation, and complete therapy monitoring.

Early diagnosis and proper GS-441524 treatment can achieve over 92% recovery success when administered promptly.

Frequently Asked Questions About Cats That Refuse to Eat and FIP

Is every cat that refuses to eat suffering from FIP?

No. However, if your cat’s loss of appetite is combined with fever, lethargy, and a swollen abdomen, FIP should be considered a likely cause.

How can I help my cat that refuses to eat because of FIP?

Start GS-441524 therapy under a veterinarian’s supervision with guidance from BasmiFIP Philippines.

Is GS therapy safe for all cats?

Yes. When prescribed and dosed accurately according to body weight, GS therapy is proven safe and highly effective.

How long does GS treatment take?

On average, the treatment lasts about 84 days (12 weeks), depending on the severity of the infection and the cat’s response.

Can FIP return after treatment?

Recurrence is extremely rare when therapy is completed in full and follow-up monitoring is done correctly.

Where can I get genuine FIP medicine in the Philippines?

Authentic GS-441524 is available exclusively through BasmiFIP Philippines, the official and verified FIP treatment provider.

Conclusion

A cat that is weak and refuses to eat should never be ignored, as this may be an early warning of Feline Infectious Peritonitis (FIP).With prompt diagnosis and effective treatment using GS-441524, full recovery is now possible.

BasmiFIP Philippines provides authentic GS medication, professional consultation, and comprehensive treatment monitoring — ensuring that your cat receives the best care and a real chance at recovery.

For consultation and full FIP treatment guidance, contact:

Instagram: @basmifipph

Official Viber: +639395419784