Tiratricol

Overview
Tiratricol (also known as TRIAC) is a thyroid hormone analogue. It is indicated in the management of thyroid hormone resistance syndrome and is used, in combination with levothyroxine, to suppress thyroid-stimulating hormone production in patients with thyroid cancer.

Tiratricol has also been widely marketed, under various trade names, as a weight loss aid. In 1999 and 2000, the United States Food and Drug Administration and Health Canada both issued warnings to the public regarding the use of dietary supplements containing tiratricol.

Legal status
Tiratricol is not approved for sale in Canada or the United States. It was once an approved drug in Brazil, but its marketing authorization was suspended in 2003, effectively prohibiting its sale.