It is a progestin only pill, my doc prescribed it for me. I decided not to take it, but it is bc. Not as effective as a combo pill, and it has to be taken at the exact same time every day for its effectiveness. Also, if you miss a pill, or go 3 hrs past your pill time, you have to use backup for the entire cycle.
Also, read your side effects. Breakthrough bleeding is much more common with this pill, as well as facial hair growth and weight gain.
Good luck!