My 12 yr old lab mixed has been on 0.5 mg Piroxicam per day for 3 weeks after his TCC diagnosis. I changed his diet to Canidae Dry Food. I add a handful of Roasted Chicken as well. I also add 2 "squirts" of Liquid 3V Caps for essential oils. He has had terrible diarreah. Yesterday I started him on 10mg Pepcid and the Piroxicam every other day. He always has had a sensitive stomach. Otherwise he has no tcc symptoms, yet. Any suggestions?