Liz Buchanan BVSc MRCVS
Hello! I do not know the answer to this question, and suppose that a lot depends of what drug is being imported and what restrictions exist between the countries. The Gov.UK Pet Travel web-page gives the following email address for queries if there is information that you can't find on the webisite. However, we would also reccommend asking your dogs' vet to check for you from their end: firstname.lastname@example.org
I hope that something there is of use.