The patch has a variety of potential side effects. And though many people do, you're not supposed to drink alcoholic beverages with it on.
If you or someone you are cruising with are well aware they have the potential problem of motion sickness, it is well worth it to invest in a much better preventative or cure -- the Relief Band. My family has several cruise@ddicts that suffer motion sickness, some of them severe. They all use Relief Band with successful results. I rarely experience any kind of symptoms, yet we cruise with one, just in case it gets really nasty.
The Relief Band is not the Sea Bands (the plastic/elastic bands that go on each wrist). The Relief Band is an electronic band that fits on one wrist and looks kind of like a watch. It works by sending an electrical impulse (yes, a light, painless shock) into the nerve in the wrist that somehow short-circuts the motion sickness impulse. It can be set at different levels depending upon need and comfort. It comes in models where the batteries are self-contained, or changable batteries. The changable battery models are expensive (but well worth it if you know you or others have problems.
I can testify from personal experience, and the experience of family members... THIS WORKS. It has no side effects (except to your $$). It can be worn before symptoms as a preventative, or after symptoms start (it takes about 15 minutes to cure symptoms that have alread started. Most medicinal methods don't work very well after symptoms already start. I've recommended this to many, many people, and many, many have thanked me.
Please note, I'm not affiliated in any way with this product (except as a satisfied customer). You can check it out at
www.reliefband.com but I've seen different reports that people have found it cheaper at other websites.
paul