Ethinyl estradiol / norgestimate
"I've been taking Tri-Sprintec for 3 years and I don't have any complaints. I can predict when my period is going to come almost up to the hour so it's very nice knowing exactly when I'm going to start. Also, my periods are much shorter (4-5 days) and lighter (I only need a regular absorbency tampon on my heaviest day). I virtually have no cramps and slight breast tenderness each month. Most importantly I've never gotten pregnant and I've been sexually active the whole time I've been taking this pill. "