Thyroxine, also known as T4, is a hormone produced by the thyroid gland. It is the primary form of thyroid hormone found in the blood and acts as a prohormone of the more active thyroid hormone, …

Oct 3, 2022 · Thyroxine, also known as T4 and tetraiodothyronine, is the main hormone your thyroid gland releases into your bloodstream. Your thyroid also releases small amounts of triiodothyronine …

Jan 4, 2024 · Levothyroxine belongs to a class of medications called hormones. It works by replacing thyroid hormone that is normally produced by the body.

6 days ago · Thyroxine is one of the major, and most biologically active, thyroid hormones in your body. Learn what it does and why its so important.

A thyroxine test measures the level of thyroxine (T4) in your blood. Too much or too little T4 can be a sign of thyroid disease. Learn more.

Jul 1, 2025 · Thyroxine (T4) is a thyroid hormone that controls metabolism, energy production, and growth. It converts to T3 in the body to regulate vital functions.

Thyroxine, one of the two major hormones secreted by the thyroid gland (the other is triiodothyronine). Thyroxine’s principal function is to stimulate the consumption of oxygen and thus the metabolism of …

Levothyroxine is a synthetic version of a hormone called thyroxine. It replaces thyroxine if your thyroid gland cannot produce it and prevents the symptoms of hypothyroidism. Levothyroxine starts working …

Oct 1, 2025 · Levothyroxine is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. This medicine is also used to help decrease the size of …

Dec 12, 2024 · Levothyroxine provides a source of thyroid hormone in people who may not make enough on their own. Levothyroxine may also be used for thyroid cancer. Taking it tells the thyroid …