Thyroid blood tests help figure out how well your thyroid gland is working. TSH helps the thyroid gland know when to make more thyroid hormones. Free T4 is the type of hormone that becomes active when ...

Subclinical hyperthyroidism means that a person has low or undetectable levels of thyroid-stimulating hormone (TSH) with normal levels of free thyroid hormones. It usually does not cause symptoms. The ...

Metformin use was associated with a reduction in thyroid-stimulating hormone (TSH) levels among patients with type 2 diabetes who also had treated hypothyroidism, a new large database analysis finds.

Thyroxine and L-thyroxine are two of the 10 most frequently prescribed medicinal products. "One large health insurance company ranks thyroid hormone at fourth place in the list of most-sold ...