Gonadorelin is a medicine that is the same as gonadotropin-releasing that is naturally released from the hypothalamus gland.GnRH causes the pituitary gland to release others (luteinizing hormone [LH] and follicle-stimulating [FSH]). LH and FSH control development in children and fertility in adults.Gonadorelin is used to test how well the hypothalamus and the pituitary glands are working. It is also used to cause ovulation (release of an egg from the ovary) in women who do not have regular ovulation and menstrual periods because the hypothalamus gland does not release enough Gnrh.