My son used the patch when he was about 12-13 yrs old as he gets motion sick in the car. It made him VERY VERY sleepy and dried out his mouth. I used the patch at California adventure as I was dying to go on the Mickey loop roller coaster. I was soo drowsey I fell asleep standing up in line. I hardly remember anything at all. My mouth felt like someone had tossed it in the dryer. Some people do not get these side effects. I usually get queasy in the car if I so much as look at a map while the car is moving, and my roller coaster days are definately over. I went on the Norwegian Majesty last February and we hit some rough water on the last night. 9 foot waves and the ship was rocking and rolling. I had to hug the pole to sing kareoke. I NEVER felt sick. Hubby felt it a little, but we had also had a wild time in Cozumel. I am hoping for the best with my kids, since they can't read in the car or even do gameboy due to motion sickness. I am going to bring Bonine, since many here have said it has the least amount of side effects and it is chewable. I also have the seabands, which provide accupressure and prevent seasickness.
Have fun!! Melissa