Piper's mom
Moderator
I don’t see how Benadryl will help with motion sickness. That’s an allergy medicine...might make him drowsy but that’s about it. Also be careful about Benadryl, some contain xylitol as per Ann’s post.Vet said 1/2 benendryl was okay?
You could try making some ginger cookies using fresh grated ginger and give him one an hour or so before going out.