Our Scottish Terrier, Lucy, was diagnosed with TCC in early June (she's 7 yrs old.) She had a very bad reaction to Piroxicam (bloody stools & throw up). We switched her to Deramaxx and it seems to agree with her. We haven't seen a change in her symptoms so I do wonder if Deramaxx is as effective as Piroxicam. The good news is that her symptoms havent' become worse with Deramaxx. I wondered about the dosage as well, but they double-checked and it seemed to be correct. She's about 20 lbs and the dosage was 27 mg once a day. Hope you find something that works for your little one :) We just started Lucy on a new diet - 75% hihg quality, minimally processed, all natural dry food and 25% raw food. Many people recommend a 100% raw diet to battle cancer, but that's unrealistic for us. I've also ordered herbal treatments for her. we just started on all of this, so I can't report any progress.