Clinical manifestations of HT are variable and commonly include diffuse or nodular goiter
with euthyroidism, subclinical hypothyroidism and permanent hypothyroidism.
Levels of thyroid function were defined
as euthyroidism (normal functioning)(thyroid - stimulating hormone [TSH], 0.45 - 4.49 mIU / L), subclinical hyperthyroidism (TSH < 0.45 mIU / L), and subclinical hypothyroidism (TSH ≥ 4.50 - 19.99 mIU / L) with normal thyroxine (a hormone that is made by the thyroid gland) concentrations.
In a longitudinal analysis of hypothyroid patients with Hashimoto's thyroiditis, restoration
of euthyroidism by L - T (4) administration was associated with a consistent decrease in serum IgG.
Peterson ME, Broome MR. Ultra-low doses of radioiodine are highly effective in
restoring euthyroidism without inducing hypothyroidism in most cats with milder forms of hyperthyroidism: 131 cases.
Of the remaining 45 % who have test results consistent
with euthyroidism, 75 % on average improve or recover when treated on the assumption that they have thyroid hormone resistance.
In Graves» disease, selenium supplementation results in
euthyroidism being achieved more rapidly and appears to have a beneficial effect on mild inflammatory orbitopathy.
Administer with caution to animals with primary hypertension,
euthyroidism and clinically diagnosed heart disease.