When you're planning some time away, the last thing you want to deal with is the discomfort associated with motion sickness. Yet some 90 percent of adults are affected by it in some way. What are the best over-the-counter preventive remedies for someone prone to motion sickness? We asked Dr. Julie Thomson, a family physician specializing in travel medicine at the Odyssey Travel and Tropical Medicine Clinic in Calgary, as well as Carmen Bell, a pharmacist and drug information consultant with the Saskatchewan Drug Information Service in Saskatoon, and Kathryn Nobrega-Porter, a naturopath in Toronto, for their advice.