Even if the cure is purely psychological and not physiological, then use it. I tend to think wrist bands fall into the former category...but if they work then great!
My preference is Bonine for the first 24-48 hours, depending on the sea state.
I had a woman onboard last week who was wearing a Scopolamine patch. She absolutely could not stay awake for very long. It made doing her job extremely difficult. She was also a bit of a safety hazard to herself, being that tired.