mifepristone

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Definition
  1. Noun:
    • A pharmaceutical drug used to induce abortion: Mifepristone is a medication that terminates a pregnancy by blocking the hormone progesterone, which is necessary for a pregnancy to continue.
Usage
  • Mifepristone is used in combination with another drug, misoprostol, for medical abortion.
  • Its use is typically restricted to the early weeks of pregnancy and is subject to specific medical protocols and regulations.
Examples
  • Noun:
    • The clinic prescribed mifepristone as part of the medical abortion protocol.
    • Access to mifepristone is regulated by law in many countries.
Advanced Usage
  • "Mifepristone regimen": Refers to the specific two-drug protocol (mifepristone followed by misoprostol) used for medication abortion.
    • The standard mifepristone regimen is highly effective in the first ten weeks of gestation.
Variants and Related Words
  • RU-486: The original trade name and common synonym for mifepristone.
  • Antiprogestin: A class of drugs to which mifepristone belongs; it works by blocking progesterone receptors.
Synonyms
  • Abortion pill: A common informal term for the medication.
  • RU-486: The former brand name.
Notes on Meaning
  • Mifepristone specifically refers to the first drug in a two-step medication abortion process. It is not synonymous with the entire procedure but is a key component of it.
  • It is also investigated for other medical uses, such as the treatment of Cushing's syndrome or certain tumors, but its primary and most well-known use is for pregnancy termination.
Noun
  1. 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

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