Skip to main content
CSTSetup
Dictionary · Drug

mifepristone

A drug that blocks the hormone progesterone, used with misoprostol to end an early pregnancy, and for some hormone disorders.

mif-eh-PRIS-tone nounBoxed warning

What it means

Progesterone keeps the lining of the uterus in place during pregnancy. By blocking it, mifepristone (Mifeprex) is used with misoprostolmy-soh-PROS-tolA prostaglandin drug that protects the stomach lining and also makes the cervix soften and the uterus contract.Full entry for medication abortion in early pregnancy and for managing early pregnancy loss. A different product (Korlym) treats high blood glucose in Cushing syndrome. Cramping and bleeding are expected after use for pregnancy.

For the nurse

Teach the client what bleeding and cramping to expect, and to seek care right away for very heavy bleeding (soaking two thick pads an hour for two hours in a row), fever lasting more than a day, or severe belly pain. It is dispensed under an FDA REMS program.

At a glance

Drug classprogesterone receptor antagonist
Brand namesMifeprex, Korlym
Also writtenMifeprex, Korlym

Related terms

REMS

Risk Evaluation and Mitigation Strategy: an FDA-required safety program for certain drugs with serious risks.

misoprostol

A prostaglandin drug that protects the stomach lining and also makes the cervix soften and the uterus contract.

Filed under

Look up another word