Definition of Mifepristone
1. Noun. An abortion-inducing drug (trade name RU_486) developed in France; when taken during the first five weeks of pregnancy it blocks the action of progesterone so that the uterus sloughs off the embryo.
Definition of Mifepristone
1. [n -S]
Medical Definition of Mifepristone
1.
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 nonpituitary cushing's syndrome.
Pharmacological action: abortifacient agents, steroidal, contraceptives, oral, synthetic, contraceptives, postcoital, synthetic, hormone antagonists, luteolytic agents, menstruation-inducing agents.
Chemical name: Estra-4,9-dien-3-one, 11-(4-(dimethylamino)phenyl)-17-hydroxy-17-(1-propynyl)-, (11beta,17beta)-
(12 Dec 1998)
Lexicographical Neighbors of Mifepristone
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