I know the person who posted this has already sailed. This is for anyone else who has the same question.
This is coming from someone who can get motion sickness from taking a shower!
I used the generic, non-drowsy Bonnine. That worked "ok". Once in my cabin, if the ship had ANY movement AT ALL, I would use the Motion Eaze. It would help. I would NOT use it as the only remedy. I think it works mainly as aroma-therapy. The strong peppermint smell seemed to help eaze the quiziness.
Bottom line for me. I use it as a back up. It's all natural herbs and you use it on the back of your ear. You do not take it internally, so you can use it with other meds.