birth control
"I have used Depo-Provera since I was 16. It started to control my period as it was irregular, and ended up years later as birth control. I have never had a period since my first injection, also never had any side effects. This is an awesome idea for someone who is irregular or just hates that time of the month. The only bad side to this medicine is I have lost a lot of bone density in the 8 years I have used it. My advice is take lots of calcium while using this drug. Other then that it's great and I have recommended it to others in my years of using it and will continue to."