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Cat Fever: Symptoms, Medicine, and Treatments

Updated: Jun 21, 2023

Just like humans, cats can also experience fever characterized by a hot cat body. Fever in cats occurs when their body temperature rises above normal limits. Normally, a cat's body temperature ranges from 100°F to 102.5°F (37.8°C to 39.2°C). However, when a cat's body temperature reaches above 103.5°F (39.7°C) and persists for several days without an apparent cause, it could indicate a fever to watch out for.

Cat Fever
Cat Fever Symptoms to Watch Out for

Causes of Cat Fever

When a cat's body is hot or has a fever, we as owners must pay extra attention to it. This is because even though fever in cats is a normal symptom, but it can also be a sign of a serious and even fatal disease that can affect our cats.

In order to take appropriate action and treatment when a cat has a fever, here are some of the causes that should be known:

  • Viral infection

  • Upper respiratory tract infection

  • Severe tooth infection

  • Tumors

  • Injuries, such as from fighting or accidents

  • Side effects of certain medications

Cat Fever Symptoms

When cats have fever, they may exhibit several symptoms that need to be considered, including:

  • Loss of appetite and drinking: Feverish cats usually lose their appetite. This can be caused by changes in the cat's metabolism due to fever, which reduces its appetite.

  • Lethargy: Healthy cats are usually active and lively, but cats with fever tend to become lethargic and less mobile.

  • Sleeping more: Cats need sleep to replenish their energy. However, when they have a fever, cats tend to sleep more than usual.

Fever is one of the symptoms experienced by cats when exposed to the FIP virus. Usually, in addition to fever, cats will feel other symptoms such as:

  • Weight loss in cats

  • Joint stiffness and impaired balance in cats

  • Respiratory problems in cats

  • Enlarged cat abdomen

  • Ocular symptoms

  • Jaundice

  • Anemia

If any of these symptoms appear, you should contact your veterinarian for an appointment.

How to Know if Cat Has Fever

When your cat has a fever and is accompanied by several other symptoms, immediately take it to the doctor for examination. The doctor will usually perform several actions such as:

  • Checking your cat's body temperature by performing a thorough physical examination

  • Checking your cat's medical history

If the fever experienced by the cat lasts for a long time with unknown causes, it could be one of the possibilities caused by a viral infection such as the FIP virus in cats.

To improve the diagnosis, it is necessary to perform a series of tests such as FCOV AB Test, Rivalta test (if there is fluid accumulation), hematology and chemical blood tests. From the results of the examination the doctor will diagnose the type of FIP of your cat and also the appropriate treatment with Basmi FIP.

Cat Fever Medicine

For fever medicine in cats, your veterinarian will recommend treatment based on the cause. It's important to remember, never give your cat fever medication without veterinary direction as some fever medications may be poison to cats.

Proper Treatment If Your Cat is Diagnosed with FIP

If you suspect that your cat is infected with FIP virus, please consult your doctor immediately and consult with our FIP treatment expert for GS-441524 from Basmi FIP, an effective treatment for feline FIP. GS-441524 is an antiviral developed by Dr. Niels Pedersen to cure FIP in cats. GS-441524 is clinically proven to be highly effective in curing FIP in cats. The efficacy of GS-441524 FIP treatment is more than 87%, giving new hope to cat owners who are struggling with FIP disease.


Fever in cats can be a sign of serious illness and should be paid extra attention. Cat owners should watch for signs of fever, such as loss of appetite, lethargy and sleeping more. If your cat has a prolonged fever and is accompanied by other suspicious symptoms, take them to the vet immediately for proper diagnosis and treatment. Treating fever in cats should be done under the direction of a veterinarian, especially if diagnosed with FIP.

FIP is a serious disease, but early detection can help improve the chances of a positive outcome. If you have any questions or concerns about FIP and its treatment, please do not hesitate to reach out to us at Facebook or visit our Instagram to get in touch with our expert team. You can read the Complete Guide to dealing with feline FIP by clicking here.

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