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Mifepristone, and also known by its developmental code name RU-486, is a drug typically used in combination with misoprostol to bring about a medical abortion during pregnancy. [8] This combination is 97% effective [ 9 ] during the first 63 days (9 weeks) of pregnancy , yet effective in the second trimester as well.
Toggle History subsection. 5.1 Prevalence. ... In 1981, French pharmaceutical company Roussel-Uclaf developed the antiprogestogen mifepristone (also known as RU-486).
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Misoprostol is most effective when it is used in combination with methotrexate or mifepristone (RU-486). [35] Mifepristone blocks signaling by progesterone , causing the uterine lining to degrade, the blood vessels of the cervix and uterus to dilate and causing uterine contraction, similar to a menstrual period , which causes the embryo to ...
Roussel Uclaf S.A. was a French pharmaceutical company and one of several predecessor companies of today's Sanofi. It was the second largest French pharmaceutical company [6] before it was acquired by Hoechst AG of Frankfurt, Germany in 1997, with pharmaceutical operations combined into the Hoechst Marion Roussel (HMR) division in the United States.
1988 – France legalized the "abortion pill" mifepristone (RU-486). 1988 – In R. v. Morgentaler , the Supreme Court of Canada struck down an abortion regulation which allowed abortions in some circumstances but required approval of a committee of doctors for violating a woman's constitutional " security of person "; Canadian law has not ...
Metapristone (developmental code name RU-42633; also known as desmethylmifepristone) is the major metabolite of mifepristone (RU-486, RU-38486) and a selective progesterone receptor modulator (SPRM) which itself was never marketed.
The 486th Fighter Aviation Regiment was a fighter regiment (IAP) of the Soviet Air Force.It was formed in 1938 as the 12th Fighter Aviation Regiment and disbanded in 1960