I am prone to motion sickness on anything that goes in a circle, and also things that go backwards (Everest is a big no-no for me). I love Soarin and Star Tours. Soarin doesn’t ever bother me and I can usually ride Star Tours twice without issue. This being said...
We rode FOP in July. It was absolutely amazing. I cried when it was over the first time because I was so blown away. Anyway, during our DVC tour the day before, we were talking with the cast members about FOP. I told them about my motion sickness issues. I was on the fence about taking anything. They recommended that I did because I shouldn’t miss it. They also told me if I felt sick, to look to my right. When you do that, you can see the people beside you and it helps to focus your eyes.
So, I took my Bonine an hour before we rode. Even with that, I had to close my eyes at one point, and did look to my right one other time. But, I was perfectly fine when the ride was over. Even with the few motion sickness bouts, I will absolutely, without a doubt, ride it the next time we’re at WDW. It truly is not to be missed.