"i have been on aviane for about 4 years now. i was fist put on it to regulate my period because i would go without having a period for as long as 3-5 months. i went to my doctor and was told it sounded like i had polycystic ovarian syndrome. aviane made my periods regular but very light. they are only three days long. i don&#039;t know if that would be considered a side effect but it is what i&#039;m used to. i gained a little bit of weight after starting aviane, but not very much. i get emotional the week of my period but nothing too extreme. overall, i am happy with it, and don&#039;t see a reason to change brands."