The American Phytotherapy Research Laboratory in Salt Lake City has conducted a classic study on motion sickness, which may cause you to leave the dramamine on the shelf during your next vacation.
By spinning motion sickness-prone students in two groups-one group was given Dramamine, the other group ginger -- it was discovered that the group given the ginger was able to withstand the full 6 minute "spin" with less nausea and dizziness, while the other group stopped the ride within 4-1/2 minutes.
Japanese researchers believe the gingerols found in ginger, may be responsible for blocking the body's reflex to vomit. Taking 1/4 teaspoon 20 minutes before a car or boat trip should give you about 4 hours of relief. Another popular remedy is 3 or 4 slices of sliced ginger in a cup of boiling water to make ginger tea. Sip as needed to relieve nausea caused by motion sickness.
Info found at fitness and freebies