motion sickness
"This worked great for me.  We went fishing on a small boat in the ocean for three days (going out each day) in some pretty choppy seas, and I never felt nauseous, nor did I get sleepy. I hate the drowsiness I get with Dramamine, so this was very welcomed.  One patch lasted for all three days, so it was economic, too.  The only challenge is ensuring the patch stays on during showers."