Motion sickness is characterized by symptoms of nausea and vomiting. Nausea and vomiting can be caused by motion itself or simply from feeling the sensation of motion, as when watching a movie or playing a video game.
Balance and equilibrium are maintained by an interaction among the inner ears, the eyes, pressure receptors on the skin, and motion receptors in the muscles and joints.
Motion sickness results when conflicting messages regarding spatial orientation and motion of the body are sent to the central nervous system. For example, reading a book while riding in a car may cause your eyes to send different messages than your inner ears do regarding motion.
Medication that prevents motion sickness should be taken as directed before you begin a trip or ride. These medications can cause side effects, such as drowsiness, lack of alertness, or trouble concentrating.
Prochlorperazine, promethazine, or chlorpromazine
Repeated exposure to the motion that causes the sickness can decrease your symptoms. This treatment can take time and may be unpleasant.