Motion sickness results from conflicting signals received by the brain. The conflicting signals are caused by excessive motion. Although most of the motion signals arise from the inner ears, your eyes and special sensors in your tendons and joints also play a role. If seasickness or any other form of motion sickness is a frequent problem for you, keep this in mind. After repeated exposure to the motions that prompt your symptoms, the body often adjusts and motion sickness becomes less of a problem www.carpaltunnel-cure.com/. However, there are exceptions. For example, some experienced sailors never overcome seasickness. When using medication to prevent motion sickness, take it before you start to travel. Even then, no medicine is consistently effective. Useful over-the-counter drugs include cyclizine (Marezine), dimenhydrinate (Dramamine) and meclizine (Bonine). Meclizine also is a available by prescription under the brand name of Antivert. Promethazine (Phenergan) works well, but is available only by prescription. Drowsiness is a common side effect of these antihistamines.