Scopolamine is a medication commonly used to prevent nausea and motion sickness. It works by blocking certain signals in the brain that can cause these symptoms. Scopolamine is often administered as a patch placed behind the ear, allowing for a slow release of the drug over time. In addition to its use for motion sickness, scopolamine can also be used in some medical procedures to reduce saliva production and help with muscle spasms. While generally safe, it can cause side effects such as drowsiness, dry mouth, and blurred vision in some individuals.