Introduction

Hyperthyroidism in geriatric cats is a life­threatening disease requiring prompt veteri­nary attention. Euthyroidism can be achieved by: pharmacological therapy, nutritional therapy, thyroidectomy, or radioiodine ther­apy. All four options have advantages and dis­advantages and which treatment is selected depends on a number of factors including: concurrent disease, age of the cat, cost, surgi­cal skill, availability of nuclear medicine facil­ities, and the owner's informed opinion.