Ok, here's the latest information. I checked to be certain. Obviously I would not prescribe any meds for a pregnant woman. I would have her check with her OB/GYN. But in general, Scopolamine patches are a class C pregnancy drug so that means NOT recommended. Bonine is class B so that is better as well as Dramamine. But of course both cause drowsiness. Again the best advice is talk with your GYN.
Here s my suggestion,,,rather than worry about a "what if" since not pregnant yet,,,book a river cruise,which is smooth and won t bother her IF she becomes pregnant....why chance it on ocean,,,stick with a river....would personally avoid MOST drugs when pregnant to be on safe side....good luck....
My wife is an MD and a relatively new mother. Her advice is to err on the side of caution. It's best to deal with some discomfort rather than risk the slightest chance of a prenatal anomaly.