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To describe the successful treatment of lethal dose 5-fluorouracil (5-FU) toxicosis using hemodialysis. A 4-month-old intact female Golden Retriever was presented to the emergency department after ingesting 20 g of 5% 5-FU cream. The puppy developed refractory seizures and became comatose with uncontrolled tonic-clonic convulsions. Because of the low molecular weight and minimal protein binding of 5-FU, a single hemodialysis treatment was employed for detoxification. The puppy improved clinically posttreatment and was successfully discharged 3 days after admission. Postingestion leukopenia and neutropenia occurred but were responsive to treatment with filgrastim. The puppy is neurologically normal and has no lasting effects 1 year postingestion. To the authors' knowledge, this is the first reported case in veterinary medicine of a potentially fatal 5-FU ingestion that has been treated with intermittent hemodialysis. © Veterinary Emergency and Critical Care Society 2023.


Jessica S Henry, Simona Buoncompagni, Sheri Ross, Stephanie A Istvan, Kaila Rizzo, Larry D Cowgill, Saya A Press. Successful treatment of 5-fluorouracil toxicosis with hemodialysis. Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001). 2023 May-Jun;33(3):388-392

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PMID: 36883466

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