Sea-Legs contains the active ingredient meclozine hydrochloride, a type of antihistamine that helps block signals to a part of the brain that controls feelings of nausea and vomiting. Each tablet is chewable, virtually tasteless (so it’s easier for kids to take) and helps prevent motion sickness for up to 24 hours. Whether you’re going by boat, car, train or plane, get them Sea-Legs – NZ’s No.1 motion sickness tablets.