Liothyronine sodium is the official name for Cytomel, which is a man-made form of the thyroid hormone T3. It is very important for keeping the body's metabolism going, producing energy, and managing hormones. People with hypothyroidism or low thyroid hormone levels often use Cytomel to raise their T3 levels and get their thyroid to work normally again. Cytomel is the active type of th... https://www.steroidyeu.eu/en-gb/T3-Cytomel-LaPharma-liothyronine