Thyrotropin-releasing hormone
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![The system of the thyroid hormones T3 and T4.[2]](/Images/godic/202502/16/Thyroid_system.svg5151.png")
Thyrotropin-releasing hormone (TRH), also called thyrotropin-releasing factor (TRF) or thyroliberin, is a releasing hormone, produced by the hypothalamus, that stimulates the release of thyrotropin (thyroid-stimulating hormone or TSH) and prolactin from the anterior pituitary. It is a tropic, tripeptidal hormone.