NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,777 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- LH-RH agonist
- listen (... 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, LH-RH agonists cause the testicles to stop making testosterone. In women, they cause the ovaries to stop making estrogen and progesterone. Some LH-RH agonists are used to treat prostate cancer. Also called GnRH agonist, gonadotropin-releasing hormone agonist, and luteinizing hormone-releasing hormone agonist.