Side effects for dogs are milder and generally last for a shorter period of time than for humans receiving chemotherapy because dogs are given less-aggressive treatment.  In fact, 75 to 80 percent of dogs have no side effects. When present, typical side effects include loss of appetite, vomiting and diarrhea. 

Less than five percent will suffer those effects more severely and will need to be brought into the vet to receive fluids. Our goal of chemotherapy in pets with cancer is to preserve the highest quality of life possible.