misoprostol
Noun
Meaning
misoprostol (uncountable)
(pharmacology) A drug used for various purposes including the prevention of drug-induced gastric ulcers and the inducement of abortions, having the chemical formula C22H38O5.
Examples
The first drug, mifepristone, blocks the effects of progesterone, a hormone without which the lining of the uterus begins to break down, while the second drug, misoprostol, induces contractions of the uterus that expel its contents.
The regimen (200 mg of mifepristone, followed 24–48 hours later by 800 mcg of buccal misoprostol) currently used by Planned Parenthood clinics in the United States since April 2006 is 98.3% effective through 59 days gestation.
In cases of uterine atony and corresponding blood loss, methergine or misoprostol can be given to encourage uterine contraction and achieve hemostasis.
Mifepristone causes an abortion when used with another long-approved drug, misoprostol.