Feline Hyperthyroidism

by | May 26, 2026 | Biotherapy

Feline Hyperthyroidism – an overactive thyroid – a fairly common condition that requires ongoing monitoring and management.

Some of the symptoms you may notice

  • Increased appetite but weight loss
  • Increased thirst and urination
  • Sometimes an enlarged thyroid gland
  • Sudden increase in energy, hyperactivity, restlessness, constantly going out, unable to rest, poor sleep or disturbed rhythm
  • Gastrointestinal stress, diarrhea or vomiting
  • Alopecia (hair loss)
  • Rapid heartbeat

These symptoms may indicate other problems

These issues occur in many other diseases, which is why specific tests exist to diagnose this condition.

Diagnosis

Accelerated metabolism will lead to high blood pressure, heart disease, kidney disease, liver disease, respiratory problems, and skin disorders.

Late stages of the disease can result in additional symptoms, as accelerated metabolism causes ‘wear and tear’ and further disorders.

Diagnosis involves checking T3 and T4 hormone levels in the blood, sometimes free T4, and ultrasound.

Therapy

Conventional therapy aims to suppress thyroid activity through medication (Felimazole). As long as the dosage is well-adjusted, everything can be fine.
This medication (which does not cure the thyroid but only controls symptoms) can have side effects, usually poor appetite, vomiting, and anemia. Then, appetite support is additionally given, essentially a cycle that needs careful management.

INFO

The medication is available as a tablet here, but there are also creams that can be obtained abroad (you need a veterinarian’s prescription, of course), and this way you can avoid oral administration and potential gastrointestinal issues.

Cushing's Disease in Dogs - A Natural Approach

Biotherapy for Cats

Bioenergetic treatments in these cases can help reduce high and irregular energy in the thyroid, thus balancing it, and homeopathy (natMur) also yields good results.

Feline Hyperthyroidism

This article is not a substitute for veterinary advice, but aims to provide useful information on natural ways to support our pets’ health.

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