Successful management of fipronil toxicosis in two pet rabbits
Background: Antiparasitic drug toxicosis is commonly described in dogs and cats, but reports on the management of antiparasitic drug toxicities in pet rabbits are scarce. Here, we describe the successful clinical management of two pet rabbits with fipronil toxicosis.
Case descriptions: The first case was a five-month-old, intact female, rabbit that presented with the acute onset of seizures, obtunded mentation, and in lateral recumbency, while the second rabbit was a one-year-old, intact male, rabbit that presented with anorexia and lethargy.
In both cases, the owners reported to have administered a 0.5 ml fipronil vial topically on the skin as an antiparasitic drug between four to six hours prior to presentation. Complete blood count and serum biochemistry were unremarkable and both rabbits tested negative on Encephalitozoon cuniculi serology. Both animals were decontaminated by bathing with tepid water and dishwashing soap.
The rabbit with seizures received on admission intravenous midazolam. In both cases, overnight hospitalization, intravenous isotonic crystalloid fluids, and assisted-feeding by oral syringe were provided until voluntary feeding was resumed.
Both rabbits rapidly improved approximately 12 hours of initiating supportive care. Complete resolution of clinical signs and return of normal appetite and defecation occurred within 24 hours of hospitalization in both animals. No recurrence of neurological signs was reported in the rabbit presenting with seizures on a follow-up period of 1 month.
Conclusion: The outcome of these cases suggests that supportive treatment of fipronil toxicity in pet rabbits can be successful if administered promptly.
Dario d'Ovidio and S Cortellini. "Successful management of fipronil toxicosis in two pet rabbits." Open Vet J. 2022 Jul-Aug; 12(4):508-510. DOI: 10.5455/OVJ.2022.v12.i4.13.
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