"i have been on this for over 8 years. it was my first and only birth control brand. made my breasts swell and hurt for a couple months and then that completely went away. i had no other side effects. by this point my periods are so light i will do 4-6 patches before removing it (yes, you can do this with the patch!). i highly recommend this. i put the patch on a butt cheek and alternate sides each week."