Hi I am sorry to hear about your guy. My Bobo is now 8 mos old and was diagnosed with a liver shunt at 4 mos of age and had surgery at 5 mos. He is doing well now. They immediately put him on a prescription food and medication and that made a huge difference for him, their body can't process the protien in the regular food. If your vet didn't change his food or suggest Lactolose and antibiotics then call them and ask. Did he have a bile acid test done? There are quite a few people on here whose puppies have this, I am sure they will have more advice, There is a group
livershuntandmvdsupport@yahoogroups.com (I think this is correct).The people at that group are very knowledgable.Please keep us updated and if you have any more questions just ask. Tammy