The scopolamine patches have their place in therapy, but because of a significant percentage of users experiencing side effects, I generally wouldn't recommend these as my first choice. Additionally, these are restricted to prescription sales only, and generally will be an expensive alternative to the over-the-counter and homeopathic methods of seasickness control.
I hope this answers your question. For more information regarding the side effects of the patches, see my reply to Anne Campbell's query below on this message board.
John Burns, R.Ph.