Finally we were able to take the boyz in the truck with us and no one got sick!!! I gave them their Meclizine 30 minutes before we left and we went 17 miles through town to PetSmart with no problems. They were up high in the truck (Ford F350 so it's big) watching things out the windows and Riley even rode backwards looking out the back wondow...I thought sure he'd get sick from that but he didn't. Now, I know to some this may not be a big deal but we have a 980 mile (one way) trip coming up this week and I was getting nervous but it appears the Meclizine has solved that problem.