Yes, this stuff does work. The brandname form of Gravol (dimenhydrinate) does list lactose as an ingredient. However, if you scroll to the bottom and click on dimenhydrinate and check ingredients there is no lactose listed as an ingredient component. Also, there is a capsule form of GRAVOL available for purchase. I've used either the capsules or the generic dimenhydrinate. It would be odd for a manufacturer NOT TO LIST an ingredient component & lactose is not listed as an ingredient in the generic form of the drug.