Scopolamine
"I can finally enjoy roller coasters again! I just read AND follow the directions. I've used it on my last 3 amusement park trips.  No issues, no problems, no nausea and vomiting after the rides! It's an anticholinergic medication so the side effects are expected,  i.e. dry mouth, pupil dilation. They were mild. Drink fluids and wear sunglasses. Let's not be over dramatic."