A hormone that helps regulate growth and development, metabolism, and body temperature.
One of the two hormones that are secreted by the thyroid gland and are responsible for controlling the metabolism of the body. Although available in pill form, it is not usually prescribed for patients with hypothyroidism because it does not provide as good control as thyroxine.
A hormone synthesised in the body from thyroxine secreted by the thyroid gland.
One of two principal hormones secreted by the thyroid gland to regulate metabolism; the other is thyroxine, also known as T4.
One of the hormones secreted by the thyroid gland.
One of two forms of the principal hormone secreted by the thyroid gland. Chemically it is 3,5,3′-triiodothyronine (liothyronine).
A thyroid hormone that bears resemblance to thyroxine but possesses greater potency. Preparations of triiodothyronine are utilized in the treatment of hypothyroidism.