Ethinyl estradiol / levonorgestrel
"While it does prevent pregnancy, it has many negative side effects. I experienced weight gain (weight that won't go away no matter how much exercise I do), frequent acne break outs, and negative mood. However it does what it's supposed to do and keeps my period very regular. I plan on continuing my use of Chatel just because it's my only option and it was free from Planned Parenthood."