Ethinyl estradiol / norgestimate
"Can I say.... awful cramps? Never in my life have I had cramps like these! I've only been on Sprintec for a month. My first period was this past weekend and it was bad! I had to take muscle relaxers to get the pain to lessen and those barely touched it. Also, I'm still bleeding four days into my new pill pack. I'm ready to be DONE with this ridiculously long period! My moods are insane. I'm emotional. 
One positive: My face is amazingly clear. That's it."