"i have been on this medication for a year now. originally i was put on it to help decrease my terrible cramps and throbbing migraines. the first 6 months it worked like a charm. the only side effects i had were mood swings and after the first 3 months i was able to control them. however starting in january, my migraines started coming back, in february debilitating cramps came back. at first we thought it was because i had switched allergy medications, but found that not to be the case after switching back to my old one. i will be switching to another choice. however, it has been effective as a birth control, and in shortening periods (mine to only 4 days)."