What are GnRH agonists?
GnRH agonist is a medication that works against GnRH (gonadotropin releasing hormone) in the brain. GnRH works on the pituitary gland, helping it to release follicle stimulating hormone(FSH) and luteinizing hormone (LH). These hormones play a key role in ovulation. GnRH agonists work to block the action of GnRH, preventing the release of LH and FSH, thus preventing ovulation.