Lot's of good advice here, but here's the combo that works for me...
I don't take chances and find the OTC stuff works for me and is readily available and cheap at the local drug store, so I take both:
I take the non-drowsy stuff on the drive down (5:00pm).
I take the drowsy stuff at the Captain's briefing (9:00pm) helps me get to sleep on the way out.
Take the non-drowsy stuff next morning (6:00am)
Repeat
Note: the dosages differ so read and take accordingly.
Also: if in doubt, take something BEFORE you step on the boat. Otherwise it's probably too late
I don't take chances and find the OTC stuff works for me and is readily available and cheap at the local drug store, so I take both:
I take the non-drowsy stuff on the drive down (5:00pm).
I take the drowsy stuff at the Captain's briefing (9:00pm) helps me get to sleep on the way out.
Take the non-drowsy stuff next morning (6:00am)
Repeat
Note: the dosages differ so read and take accordingly.
Also: if in doubt, take something BEFORE you step on the boat. Otherwise it's probably too late