Gonadotropin-releasing hormone (GnRH) agonists are synthetic peptides that mimic the natural hypothalamic hormone GnRH. They are used to control the release of gonadotropins (LH and FSH) from the pituitary gland. These hormones are crucial for sexual development and reproductive function. In pediatric medicine, GnRH agonists are primarily used to manage conditions like central precocious puberty (CPP).