My 13 year old staffy was prescribed a steroid treatment, "Prednidale" after I had him at the vets for an increasingly frequent and severe cough. A mass on his lung was found by the x-ray which they think is cancerous given his age, but can't be sure without testing (which carries risk in itself). One of the options I was given was to manage it palliatively via steroids which would keep him comfortable for as long as possible. I thought, naively perhaps, that this would give him up to another couple years with me. However within days of starting treatment I noticed his face looking more ghuant and bony. Over the past couple of weeks he's become noticeably thinner, and weaker (he can't jump onto my bed anymore) and his teeth chatter sometimes. The vet thinks it unlikely the steroids would have that much of an impact that quickly and it could be effects of cancer. But I don't understand how he could appear perfectly fine and healthy beforehand aside from the cough to noticeably deteriorating within days of starting treatment. I am feeling that given his age it would be unfair to put him through chemo and surgery. But I am feeling stressed seeing him deteriorate each day when it should be helping him. Has anyone had a similar experience with steroid treatment? Did you manage to stop the weight loss and regain some of the lost muscle? Would it be worth changing or supplementing his food? He's been on Autarky adult chicken dry food since I got him 6 years ago and he's been fine till now. I just want to do right by him, but I feel guilty watching him get weaker by the day.