She cant go 10-15 mins without throwing up, which was really bad when I was taking her to puppy training (a few years ago). I was told to give her sea sickness tablets (sealegs) that you can get from the chemist, and use the child dosage. It worked. I cant remember how many hours before the car drive i was supposed to give it to her, but I'd just follow the instructions on the packet. More dog vomit in the car!