April 9, 2002
 

RU486

 

fetus at 2 months

RU486, also known as Mifepristone, Mifeprex, and "the Abortion Pill", is for women who have gotten pregnant and want to terminate the pregnancy early, non-surgically. It was developed in France 22 years ago, but it was recently approved by the FDA for use in the United States. In the US, women are able to use RU486 up to 49 days since the first day of the last menstrual cycle, although studies are showing that it could be effective up to 63 days, though the success rate may decrease slightly after 49 days.

 
   
   
embryo at 49 days
embryo at 49 days

What is it and how does it work?
RU486 is a combination of two drugs, taken 48 hours apart. The first drug, called Mifepristone generically, better known by the brand name Mifeprex, blocks the receptors for progesterone, a hormone that is necessary to maintain pregnancy. The uterus begins to soften and disintegrate, and it is thought that it may accelerate the production of natural prostaglandin, which makes the cervix softer and stimulates early contractions.
The second drug is called Misoprostol (brand name, Cytotec), which gives rise to strong uterine contractions and it expels the embryo (it is called an embryo until it is 8 weeks old, at which point it is refered to as a fetus)..

Effectiveness and Side Effects:
There are basically no side effects associated with the first drug, Mifeprostone. The common side effects are attributed to the second drug, Mifeprex. About 15% of women experience nausea, vomiting, or diarrhea. Most women experience some bleeding and contractions, but this is considered normal, and part of the procedure. The incidence of bleeding is actually higher for RU486 than for a surgical abortion; the average woman bleeds for 8-9 days with RU486, as opposed to 5 days for a surgical abortion. Rarely side effects will include fever, headache, and other minor side effects. As the pregnancy continues, the amount of bleeding and incidence of complications that may result in the need for a surgical abortion increase. RU486 is 92-95% effective in ending a pregnancy.
If surgery is required to end a pregnancy due to complications in using RU486, doctors have found that the procedure is actually easier as a result of the drug, because the cervix is already soft and open as a result of the abortifacient drugs.

Surgical Abortion or Medical Abortion (RU486)?
If a woman decides to have an early abortion, she has options to consider. While taking a pill to end an abortion sounds painless and easy, there are serious disadvantages to using RU486, and many women still opt to have a surgical abortion.

Cons to Using RU486:
Using RU486 is time consuming. It requires several visits to a doctor or clinic. On the first visit, a woman receives counseling and 3 tablets of the first drug, Mifeprostone, to be taken right away. She is free to go home, but will return in 48 hours to take 2 tablets of the second drug, Misoprostol. The women will now likely miscarry at home.

Miscarriage happens within 4-6 hours for 50% of women, and by 24 hours, 90% of women have miscarried.

Twelve to fourteen days later, the woman must return to the doctor for a pregnancy test, to determine that the pregnancy is indeed terminated.

In a sense that a woman has to wait to miscarry, and still needs to recover from any side effects and bleeding, a surgical abortion is quicker.

Pros to Using RU486:
RU486 offers more privacy, as the woman is usually able to miscarry in her own home. She can also get the drug from a doctor, so she can avoid having to go to a clinic.
It is possible that RU486 is safer than a surgical abortion, though an early surgical abortion is a very safe procedure-much safer than an appendectomy.

For many women, the psychological aspects of RU486 are the major drawing point. Some women are frightened of the instruments used for surgery, or just afraid of the concept of the surgical procedure itself. RU486 offers more control for many women over the whole process. It seems more natural-very much like a natural miscarriage-and many woman want to know what is happening with their bodies. Some women even want to see the material that is expelled as part of the process.

RU486 has been especially good for young teenagers who become pregnant, especially if they have a supportive parent who helps guide them through the process.

Ethics of RU486:
Unlike the Emergency Contraceptive Pill, RU486 does cause an abortion; its purpose is to end a pregnancy. There is no end to the heated debates on the topic of abortion, as some people believe that it is the "innocent murder of a child." Others believe that the embryo is not yet a child, and that it is every woman's right to end the pregnancy if she is unable to care for a child, or she doesn't want a child.

At 49 days, the embryo is about 13mm long. The future nose and ears are visable, and the retina and lens in the eyes have formed. The eyelids and upper lip have begun to form, and the fingers are starting to separate into individual digits. The embryo has its own blood type, as the blood cells are now produced by the liver, instead of the yolk sak. The embryo begins to move inside the uterus.

People who are against abortion are sometimes afraid that having a pill that causes abortions will make getting abortions too easy and people will use it as a form of birth control. The time, stress,

and discomfort involved in the procedure though, makes it a procedure that women would find much more impractical than conventional methods of birth control. (links to male and female BC)
ultrasound photo of 7 week embryo