I am definitely predisposed to sea sickness. An easy test is try to look down and read a magazine while someone else is driving your car and see if you get instantly queezy like me. Any how, I go out deep sea fishing all the time and I take over the counter BONINE tablets. I think you only have to take it every 12 hours. It works like a charm for me, I never get remotely queezy when I take it. I also take it before flying.