I have a dog that I really like and he's no trouble whatsoever but, he cannot ride in a vehicle. Vomits within a few minutes, and continues to do so all the time till there's nothing left, and, it comes out the other end as well. I plan a trip back to East Texas either Thanksgiving or Christmas for a few days and would really like to take him because I know no one here well enough to ask them to look after him a few days and as far as I can find, there's no pet boarding places here either. Is there anything I can give him to help take care of his motion sickness for a 4 hour drive each way?