My wife will get sea sick riding in the car, yes riding in the car, on long trips. The sea bands do work really well and no drowsiness like with dramamine. Something that we found that works even better than the sea bands is ginger tablets. The bands can get uncomfortable when wearing for an extended period since they are a little tight applying pressure to the 'pressure point' on your wrist.
you can get a bottle of ginger tables for under $10 and they should last for several months. My wife uses them when we go cruises instead of the sea bands and no side effects and no sea sickness at all. Not saying it will work for everyone, but it works for her. (no Im not a ginger salesman)