Product guarantee

Elanco Animal Health stands behind Comfortis® (spinosad). If you are not satisfied, please consult your prescribing veterinarian for appropriate medical advice. The attending veterinarian’s involvement is required to exercise this guarantee, and clinics should call 888-545-5973 to initiate the process.


Elanco product replacement is provided to the clinic for each case that meets the following full criteria:

  • Dogs or cats must be treated according to label directions.
  • All pets in the household must be on an approved flea protection product.