"i was prescribed this for birth control because i didn&#039;t like the weight i gained on yaz, but it was a mistake. for weeks i had horrible headaches to the point where i couldn&#039;t think, and then had terrible mood swings. effective as a contraceptive, because i didn&#039;t get pregnant, but i was confused as to why i didn&#039;t feel like myself at all. after i figured out that it was probably kariva, i stopped immediately.  i had no clue birth control pills could make me that crazy! after a month, i felt much better. not taking this ever again."