9 results about "Exogenous hormones" patented technology

Exogenous hyperthyroidism is caused by the ingestion of excessive amounts of thyroid hormone. Levothyroxine (T4) is the most widely used thyroid hormone preparation, but the hormone is also available as liothyronine (T3), thyroid extract (desiccated thyroid), and mixtures of synthetic T4 and T3 (liotrix).