Thank you Jayne. I have to take Jazz back to the vet early in January with a urine sample and to be weighed so I will ask their advice then. He is an elderly gent now, sleeps a great deal and has very little vision but he still has his ever wagging tail and a good appetite. Unfortunately we don't go for walks now, because he cannot see he is completely traumatised if I try to take him out. I do understand as the lack of vision has obviously affected his confidence. However, he is very happy pottering around the garden and I have to accept that. I do miss our walks though. Hope you, Pearl and Coral are well and I wish you all a Very Happy Christmas.