What Are Tesamorelin Tablets and Why Do Researchers Study Them? Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH), a 44-amino acid hypothalamic peptide that plays a central role in the regulation of the somatotropic axis. Originally synthesized as a stabilized GHRH(1–44) analog, tesamorelin has been widely investigated in the context of GH/IGF-1 axis modulation...