Nature Throid

Description

Desiccated thyroid is a naturally occurring thyroid hormone derived from porcine thyroid glands. Thyroid hormone is used to treat hypothyroidism that results from primary atrophy of the gland, functional thyroid deficiency, or decreased thyroid function secondary to surgery, radiation, or antithyroid agents. The preparation is also used to treat pituitary hypothyroidism, hypothalamic hypothyroidism, and cretinism. Because of considerable variations in levothyroxine (T4) and liothyronine (T3) content, porcine thyroid hormone has been largely replaced in clinical medicine by synthetic levothyroxine, which has a more reliable hormonal content. Various thyroid extracts have received FDA approval since 1939.