Biochem/physiol Actions Hexarelin (HEX), a ghrelin analogue, is a growth hormone secretagogue receptor agonist, a growth hormone releasing peptide. Hexarelin may be used as an internal standard in quantitative analysis (via chromatography etc.) of prohibited growth hormone enhancing drugs such as GHRP-2. The potential use of Hexarelin as a therapeutic has prompted research studies on its physiological effects in vitro and in vivo. |