[4doggiemama]

This is some information I found:
"Many of the show people use Bonine to prevent motion sickness in their puppies/dogs. The dosage is 1/2 pill about an hour prior to trip. Bonine differs from Dramamine in that it does not cause drowsiness and leaves the dog alert and aware. You can purchase it at any drugstore, such as Walgreens."

Also google "pet motion sickness" and you should come up with lots of info. I have a Pommie that has motion sickness. I have lots of info saved. Good luck.