RU486 (Mifepristone) is a drug that is used for early stage abortion (first 50 days) or emergency after-the-fact contraception.  It has recently been discovered that if it is counter-treated soon enough, the life of the baby can be saved.  

In addition to killing the developing baby, the side effects of RU486 are considerable and can even end up killing the mother.  The first adult death from use of RU486 was made public in March 2012, and the ABC reported that the woman was treated at a Marie Stopes clinic.  According to the Therapeutic Goods Administration, the woman died in 2010.

Even the aim of having RU486 available as a cheaper method of abortion has been a failure.

To put the quality of RU486 as a product in to perspective, it's best to hear from pro-abortion activists and feminist writers Dr. Renate Klein, Dr Janice G. Raymond and Dr Lynette J. Dumble in their book RU486: Misconceptions, Myths and Morals.

"A down-to-earth rational best practice approach that truly respects women’s health and well being could not, in good faith, endorse this fraught abortion method ... RU 486/PG abortion (is) an unsafe, second-rate abortion method with significant problems.”

Furthermore, in spite of modifications and improvements over the decades to the drug levels used in the treatment and even the inclusion of antibiotics to help prevent infection, she sees ...

“RU 486/PG abortion as an unsafe, second-rate abortion method with significant problems”

The experience for those women taking RU486 is also excruciating.  Take the events endured by “Rose”, 27, from South Australia, whose experience is shared in the new preface of RU-486: Misconceptions, Myths and Morals.  She was told it would be easy and quick.

The worst part … was the sheer amount of time it took for me to 'terminate' my baby: every large clot of blood - which I could literally feel passing through my insides … was a reminder of the fact I was terminating a baby, for which I felt hugely saddened.

It was three days of nausea, high temperature, sweating, cramping, lots of blood, distress and swirling emotions. I would never ever go through that again. Rose bled for another three weeks.”

More stories are contained in the preface of the book, but also in Marie Claire magazine in an article titled "I Was Betrayed by a Pill"

Nothing-not the drug literature, not the clinic doctor, not even my own gyno-had prepared me for the searing, gripping, squeezing pain that ripped through my belly 30 minutes later. I couldn't even form words when Stewart called to check on me. It was all I could do to gasp, Come home! Now! For 90 minutes, I was disoriented, nauseated, and, between crushing waves of contractions that I imagine were close to what labor feels like, racing from the bed to the bathroom with diarrhea. Then, just as quickly, it was over. The next night, I started bleeding. I bled for 14 days. A follow-up ultrasound confirmed I'd aborted. And that's when my problems really began.

Be sure to read the rest of the article.  It got worse, and it was only when she later described her symptoms to her gynaecologist that she discovered her experience wasn't all that unusual.