Motion Sickness 

The pathogenesis of motion sickness is poorly under- stood. The prescription cholinergic blocker scopolamine in a patch or oral formulation can decrease symptoms. Transderm Scoop is applied to the skin behind the ear 6-8 hours before exposure and changed every three days. The oral 8-hour tablet (Scopace) is taken 1 hour before exposure. Oral pro- methazine (Phenergan,  and others) is a highly sedating alternative. Over-the-counter drugs such as dimenhydrinate (Dramamine, and others) or meclizine (Bonine, and others) are less effective, but may be helpful for milder symptoms.