<unk>  (GHRH), also known as somatocrinin or by several other names in its endogenous forms and as somatorelin (INN) in its pharmaceutical form, is a releasing hormone of<unk>  hormone (GH). It is a 44-amino acid peptide hormone produced in the arcuate nucleus of the hypothalamus. GHRH first appears in the human hypothalamus between 18 and 29 weeks of gestation, which corresponds to the start of production of<unk>  hormone and other somatotropes in fetuses.
Growth hormone–releasing hormone
Prolactin-releasing peptide
Gonadotropin-releasing hormone
Counterregulatory hormone
Adrenocorticotropic hormone 
Adrenocortical hormone
Orexin
Menotropin