Pet Safety Tip: Keep cats away from Easter lilies

April 11, 2014

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NORTH GRAFTON, Mass. (April 11, 2013) — Emergency Room veterinarians at the Foster Hospital for Small Animals at the Cummings School of Veterinary Medicine at Tufts University are warning pet owners that Easter lilies can cause kidney failure – and often death – in otherwise healthy cats. Tiger lilies, Japanese Show lilies and various day lilies can also harm cats in the same way.

All vegetative parts of lilies, including the flowers, stems and leaves are toxic to cats, according to Elizabeth Rozanski, D.V.M., associate professor at the Cummings School and an expert in emergency and critical care.

Symptoms of poisoning include vomiting, loss of appetite and depression, and can occur as soon as two hours after the cat has eaten the plant, said Rozanski. Treatment must be administered within a few hours after the cat has eaten the plant in order to prevent kidney failure and/or death.

While the cat may stop vomiting within 12 hours after eating the plant, it may continue to suffer from anorexia, dehydration and depression as the toxic substance in the lily causes kidney damage. The result is kidney failure and often death.

"If you suspect that your cat has eaten vegetative parts of the lily plant or if it has any of these symptoms, go to your local veterinarian immediately," advised Rozanski. "Your veterinarian may administer an emetic to make your cat vomit the plant material, followed by intravenous fluid therapy for several days to prevent kidney failure. Once kidney failure from lily toxicity has occurred, it usually cannot be reversed." 

Cats suffering from lily-induced kidney failure may need a kidney transplant to survive. Hemodialysis is another option for cats suffering from renal failure. Both options are costly and may cause complications.

The best ways to protect cats when lily plants are in bloom are to move the plants out of cats' reach, keep  cats indoors, and, if indoor restriction isn't possible, closely monitor their outdoor activity.  Better yet, ask if the florist can create a “cat-safe” arrangement.

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About the Cummings School of Veterinary Medicine at Tufts University

Founded in 1978 in North Grafton, Mass., Cummings School of Veterinary Medicine at Tufts University is internationally esteemed for academic programs that impact society and the practice of veterinary medicine; three hospitals and four clinics that combined log more than 80,000 animal cases each year; and groundbreaking research that benefits animal, public, and environmental health.