selective estrogen receptor modulator


(seh-LEK-tiv ES-truh-jin reh-SEP-ter MAH-juh-lay-ter)
A drug that acts like estrogen on some tissues but blocks the effect of estrogen on other tissues. Tamoxifen and raloxifene are selective estrogen receptor modulators. Also called SERM.
Understanding Cancer Series: Estrogen Receptors/SERMs