"i&#039;ve been on tri sprintec for a year now. i got it for a few reasons, first to prevent pregnancy obviously, and to regulate my periods. well, i have no issues with this pill except it gave me migraines. i always got at least one migraine a month right before my period. as i started taking this birth control i am not up to about 8 migraines a month. every time a new week started in the pack, i would get migraines. after a year i went back to my doctor and we just switched to another birth control."