Ethinyl estradiol / levonorgestrel
"I've only been on Seasonique for 8 days.  I started having a dizzy feeling last week.  Everyday it has been progressively worse until 3 days ago when it started affecting my balance.  I have been on Seasonale for over a year but a mistake was made when my prescription was refilled and I ended up on Seasonique.  I haven't had any breakthrough bleeding or any other problems but the dizziness is preventing me from having a normal life.  I'm switching back."