Will Falconer, DVM Moderator
Hi Donna, I'm so sorry to hear of your senior with cancer. This, like all cancers, began well before 3 weeks ago. You, your dog, and every mammal on the planet has cancer cells arising on a daily basis. That's decades old understanding. Why aren't we all filled with tumors and dying of cancer then?
A: we have immune systems whose job it is to ferret out "foreigners," and that includes cancer cells.
Any drug or intervention that interferes with that well tuned, natural system that's evolved over millennia is a risk. Apoquel is clearly aimed at stopping part of that system.