This procedure makes the womb a hostile environment to the already living baby…

“Also known as RU-486, mifepristone is a synthetic steroid that makes it difficult for a fertilized egg to adhere to the uterus’ lining. When it is taken with misoprostol, or (brand name Cytotec) a drug that triggers uterine contractions, the result is an abortion.

Because the two-drug combination is not surgically invasive, it is sometimes called a “medical abortion.”
Source: The Washington Post Tuesday, February 4 1997; Page Z10
By Caryle Murphy

“RU-486 is one of a new class of drugs whose function is to block end organ receptors of various hormones. When end organ receptors are blocked, the effect of a hormone and various hormone dependent processes are interrupted or altered. RU-486 blocks various end organ receptors but its principal clinically relevant action is to block progesterone receptors.

Since progesterone is necessary for the maintenance of pregnancy, blocking its effect will result in the termination of the pregnancy. Progesterone is necessary to maintain the endometrium which provides a nourishing bed for the implantation and development of the fetus. With RU-486, progesterone is blocked and the endometrium no longer is able to nourish the developing child, which starves and is sloughed out.”*

So, RU486 makes the womb unable to support the new life that has been created. The baby dies….(In 5-10% of the women who use RU 486, the drug fails to kill the developing child . These women usually have to have follow-up surgery.) A woman must wait some time for the progesterone to get to a higher level before RU486 can work. Thus, the term ‘morning after’ is not an accurate name.

“RU-486 was first promoted as a “morning after pill” to be used after unprotected intercourse. It was discovered, however, that it was not effective early in pregnancy before progesterone levels had reached a critical threshold.

It was then promoted as a “menstrual regulator” — i.e. a pill a woman could take every month and not even know if she were aborting, thereby, presumably, relieving her conscience. It was discovered, however, that RU-486 causes the phenomenon of “dyssynchrony” in which a woman’s ovulatory and menstrual cycles become unlinked — reducing the drug’s effectiveness in terminating any pregnancy.”*

The second drug called a prostaglandin produces uterine contractions to expel the dead baby. This does fail in 20 percent of the cases and the dead baby is not expelled from the body and further surgery is required.

When given to induce abortion during the first weeks, RU-486 works about 60 percent of the time. When combined with prostaglandin it is effective about 80 percent of the time. A second course of prostaglandin will abort an additional 15 percent and the remaining 5 percent will require a surgical abortion.”*

*taken from “RU486: THE REST OF THE STORY by Dr. Eugene Diamond”