Since seasickness is all in the head
, I see no reason why a placebo wouldn't be perfectly acceptable as long as it worked.
I have and use another older brand, the original Relief Band IIRC. It isn't as effective as 'scop but it doesn't have the side effects, either. They're FDA approved and found effective even in pregnancy for monring sickness, so someone besides me thinks they work.
What you won't see on their web sites:
1-Must be positioned JUST RIGHT. And since it is a band on your wrist and you are sailing and using your hands, take a memo, CHECK THE POSITION frequently. Use the conductive paste, and make sure the position is right.
2-When turned up to full power, it feels something like a rat chewing on your wrist. Which is a very good feeling, compared to being "wish I was dead" seasick. The rat chewing on my wrist is much easier to put out of my mind.
In the grand order of things, it does more for me than anything except heavcy drugs. And of course, you can take ginger at the same time if you please. Or anything else, since you can always take the band on/off with no residual effects.
Since you are pregnant, your doctor can even prescribe it for morning sickness, making it a total medical