Wasn't really sure where to put this, so I just picked the first message. Here is a link I found with new info from the FDA.
www.foxnews.com/story/0,2...88,00.html

The FDA is adding a "black box" warning to Depo-Provera (search) stating that prolonged use of the injectable contraceptive may result in the loss of bone density. The black box warning is the strongest warning the FDA issues on drugs.