Birth Control
"I&#039;ve had the mirena for a little over a year. I haven&#039;t had a period in about 8 months but occasionally do get cramps. My sex drive has become very high. I&#039;ve also gained 30 lbs since I got it. That&#039;s been the only down side of the mirena. Other than the insane weight gain, the mirena has been very effective and painless."