The term "Growth Hormone Human Methionyl", also known as somatropin or rhGH, refers to a synthetic version of the human growth hormone (hGH). Synonyms for this substance include recombinant human growth hormone, HGH, rHGH, and somatotropin. These terms are often used interchangeably to describe the same bioactive protein responsible for stimulating growth, cell reproduction, and regeneration in humans. While the more technical term "Growth Hormone Human Methionyl" may be commonly used in scientific literature, the various synonyms offer simpler and more accessible ways to refer to this essential hormone in medical discussions, research, and clinical practice.