NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,177 terms related to cancer and medicine.
We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.
- gonadotropin-releasing hormone agonist
- listen (goh-NA-doh-TROH-pin-reh-LEE-sing HOR-mone A-guh-nist)
A substance that keeps the testicles and ovaries from making sex hormones by blocking other hormones that are needed to make them. In men, gonadotropin-releasing hormone agonists cause the testicles to stop making testosterone. In women, they cause the ovaries to stop making estrogen and progesterone. Some gonadotropin-releasing hormone agonists are used to treat prostate cancer. Also called GnRH agonist, GnRHa, LH-RH agonist, and luteinizing hormone-releasing hormone agonist.