Treatment of Feline Hyperthyroidism

Thyroid lesions are usually benign, thus treatment carries a favorable prognosis. The aim of treatment is to decrease total thyroxine (TT4) to within the reference range thus eliminating clinical signs associated with excessive circulating TT4.

Failure to treat hyperthyroidism leads to emaciation, severe metabolic and cardiac dysfunction and ultimately death.

Evaluation of the hyperthyroid cat

Concurrent disease should be ruled out before commencing treatment:

  • Full hematology
  • Full biochemistry
  • Urinalysis
  • Systolic blood pressure (Doppler)

Read more about Concurrent diseases in hyperthyroid cats.

Treatment options

The type of treatment is dependent on a number of factors, including availability of facilities, and presence of concurrent diseases.

Treatment and management of hyperthyroidism includes:

As the thyroid lesions are usually benign, treatment carries a favourable prognosis.