Motion sickness. Helping patients tolerate the ups and downs.

The sensory conflict theory provides a useful framework for understanding motion sickness. Few modifications of this model have been proposed since its publication. The weak link in the study of motion sickness has been the failure to delineate the anatomic structures that correspond to the model's components. Effective pharmacotherapy is available for treatment of motion sickness. The choice should be based on the need to provide prophylaxis for or treatment of symptoms and on the side effect profile of the drug.