Hey YVR, I noticed you mentioned "gravel" earlier in the thread. Did you mean "Gravol"? If so, that should work well. Someone else mentioned Stugeron (cinnarizine) which works very well but isn't available in Canada or the US. I used to buy it over the counter in The Bahamas. Unlike most other medications, Stugeron is effective in reducing symptoms after the onset of seasickness. It comes in several strengths, including 15 mg, 25 mg and "forte" at 75 mg so read the label carefully before taking as it does have side effects.