Development of acute pancreatitis after oral administering a praziquantel, pyrantel pamoate, and febantel combination in a dog: A case report.

Oral praziquantel, pyrantel pamoate, and febantel combination (PPFC) is a highly safe anthelmintic treatment commonly administered for the purpose of canine gastrointestinal parasites with mild adverse effects such as anorexia, vomiting, lethargy, or diarrhea. A 12-year-old castrated Chihuahua was brought to our hospital for a periodic health examination. Although his general physical examination showed no abnormalities, blood test results showed increase in the liver enzyme, lipase activity, total bile acid, total cholesterol, and triglyceride concentration. Moreover, the dog had underlying tricuspid regurgitation that was not treated. PPFC was prescribed on the suspicion of gastrointestinal tract parasites. Following the oral administration of PPFC at home, anorexia and lethargy were found, and vomiting and diarrhea were noted after 30 h. The dog was diagnosed with acute pancreatitis based on clinical course of the disease and subsequent pathology results. Although intravenous drip was initiated upon hospitalization, the treatment was discontinued owing to financial reasons. The onset of acute pancreatitis can be considered an adverse effect of PPFC. Although the association between PPFC administration and the onset of acute pancreatitis could not be clarified in this case, the onset of acute pancreatitis may have been associated with a decrease in liver function and/or increase in the false activity of lipase. PPFC has been considered highly safe in dogs, although care should be taken when administering medications to dogs suspected of having an underlying disorder.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.