I don’t know if you still look at this feed… but my 10 year old German Shepherd is going through EXACTLY the same thing as your boxer. Have had all the same tests and almost exactly the same meds. Was wondering what happened with your moms boxer and what they finally equated to the diarrhea and weight loss. Please let me know. We are seriously considering putting him down without a diagnosis. We have spend so much money on vets and specialists trying to find an answer or diagnosis. He looks so sad, and it breaks my heart.
