i have seriously had no problems with the nuvaring. in fact i LOVE it!! it has made my periods sooooooooo much lighter and shorter and i know the day every month when my period will start! i love that it is only once a month and it is easy to use. i would recommend it to anyone! i guess it just depends on what you can use and cant use... in the way of medications... but i will say that i am not allergic to any medications that i know of and i have been on a lot. i have noticed a little moodiness a few days b4 my period is due but it is manageable and it wouldn't change how i feel about it.