You’ll need a prescription for these patches (brand names include Transderm Scop), which you apply behind your ear at least four hours before boarding the ship. Once applied, the patch can relieve nausea for up to 72 hours.
Side Effects: Unlike other options, the patch does not cause drowsiness — which is a major bonus. That said, when we drank a glass of wine at dinner while wearing the patch, our vision became totally blurred. (It wasn't fun; consider steering clear of alcohol altogether.) Other cruisers reported dry mouth when using the patch. And even though it's not a pill, it is a prescription drug, so check with your doctor first. It also shouldn't be used if you're on other medications.
The Verdict: We found this to be the most effective solution for seasickness. And we liked that we could go about our business without worrying about taking a pill every day.