Hyperthyroidism in Cats (Felines): Causes, Symptoms, Treatments

Feline hyperthyroidism is characterized by overproduction of T4 (thyroxine) and T3 (triiodothyronine) hormones via the thyroid glands in cats.  As a result of excessive T4 and T3 hormone secretion, concentrations of T4 and T3 reach supraphysiological concentrations within the body of the cat.  At supraphysiological concentrations, these hormones elicit deleterious effects upon normative physiological processes, […]