Hi there, our dogs travel next Monday and as you're not allowed to sedate pets travelling by air thought some of you would be interested to know there is a herbal medication they are allowed to take called Zylkene. Our carrier and their nominated vet have approved its use and recommended we start our pets on it ten days before travelling and throughout their kennel stay at the quarantine station, as it really calms them down. Apparently it also helps on firework night or when moving to a new house. Hope this helps any stressed pets out there x