Thanks for the information. I understood that vets are supposed to issue prescriptions if asked, but when I spoke to the vet we use in France, she refused, saying that the matter of vets' prescriptions was "under discussion". I have checked with MedicAnimal and they tell me that they will deliver some medication in France, with a French vet's prescription, or they will deliver to a UK address on a UK vet's prescription. They are cheaper than buying from the vet, but more expensive to buy the items for delivery in France than in UK. I think the best thing to do is to try a different vet to see if I can get a prescription there. I'll also have a word with the pharmacist when we're in France this summer. Our pharmacist here in UK will dispense some items on a vet's prescription, but not all of them are available. Price is about half what the vet charges. Thanks again for your help.