Mifepristone

Mifepristone (or RU-486) is a synthetic steroid compound with both antiprogesterone and antiglucocorticoid properties. The compound is a 19-nor steroid with substitutions at positions C11 and C17 (17 beta-hydroxy-11 beta-[4-dimethylamino phenyl] 17 alpha-[1-propynyl]estra-4,9-dien-3-one), which antagonizes cortisol action competitively at the rece...
Found on http://en.wikipedia.org/wiki/Mifepristone

mifepristone

(mif″ә-prisĀ“tōn) an antiprogestin used with misoprostol or other prostaglandin to terminate pregnancy in the first trimester; administered orally. Called also RU-486.
Found on http://www.encyclo.co.uk/local/21001

mifepristone

<chemical> A progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua. As a glucocorticoid receptor antagonist, the drug has been used to treat hypercortisolism in patients with non...
Found on http://www.encyclo.co.uk/local/20973

mifepristone

A drug used to end early pregnancies. It is also being studied in the treatment of some types of cancer and other conditions. Mifepristone blocks the action of progesterone, a hormone that helps some cancers grow. It is a type of antiprogesterone. Also called Mifeprex and RU 486.
Found on http://www.cancer.gov/dictionary?expand=M

mifepristone

Anti-progesterone drug used, in combination with a prostaglandin, to procure early abortion (up to the tenth week in pregnancy). It is administered only in hospitals or recognized clinics and a success rate of 95% is claimed. It was developed and first used in France in 1989. It was licensed in the UK in 1991, and became available in the US...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0034090.html

Mifepristone

Mifepristone: The French abortion pill, also known as RU-486. RU-486 has been used in combination with another drug called misoprostol, to terminate pregnancy at an early stage. It is used with women who are no more than 7 weeks pregnant. The drug has 95% effectiveness. About 5% of women using RU-486 in early pregnancies need additional medical int...
Found on http://www.medterms.com/script/main/art.asp?articlekey=13576

mifepristone

synthetic steroid drug used under various trade names (e.g., RU-486, Mifegyne, Mifeprex) to induce abortion in the early weeks of pregnancy. ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/m/88

mifepristone

Type: Term Pronunciation: mif′pris-tōn Definitions: 1. Synthetic chemical compound with antiprogesterone properties used for early pregnancy termination; the substance binds with glucocorticoid receptors resulting in increased adrenal gland secretion. Synonyms: RU-486
Found on http://www.medilexicon.com/medicaldictionary.php?t=55406
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