The growth hormone-releasing factor (GHRF) is released by the hypothalamus and acts on the adenohypophyse to stimulate the secretion of growth hormone. GHRH is available under the names Groliberin (Pharmacia), Somatrel (Ferring) and Geref (acetylated aa 1-29, Serono) for the treatment of growth hormone deficiency.Human: H-Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys-Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly-Glu-Ser-Asn-Gln-Glu-Arg-Gly-Ala-Arg-Ala-Arg-Leu-NH2 or H-YADAIFTNSYRKVLGQLSARKLLQDIMSRQQGESNQERGARARL-NH2