Dear Maura, While we don't consider ourselves advocates of herbal medicine, we do subscribe to and believe in Consumers Report. In the November issue they cover Herbal medicines. They report that double-blind research does show that GINGER can prevent motion sicknesss. And it can quell nausea. They say that no side effects have been noted and that there's potential to inhibit clotting. Hopes this is of some use to you. By the way, in this same Consumers Report article they mention Coenzyme Q10 which I believe is NADH. The context is its a hot seller. They say its suppose to strengthen the heart, inhibit aging, produced in every cell of the body, convert food to engery and is an antioxidant. But there is disagreement about if it works when swallowed. Melatonin is also mentioned. Betti Adams [log in to unmask]