Successful management of suspected minoxidil toxicosis in a cat following accidental dermal exposure

Song Jh, Kim Sy, Moon Jh and Jung Di
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Song Jh: College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
Kim Sy: Centrum Animal Medical Center, Busan, Republic of Korea
Moon Jh: Centrum Animal Medical Center, Busan, Republic of Korea
Jung Di: Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Republic of Korea

Veterinární medicína, 2022, vol. 67, issue 6, 323-329

Abstract: Minoxidil was originally introduced as a potent vasodilator, but is now widely used as a topical treatment for human alopecia. A 4-year-old neutered male Norwegian Forest cat presented with a 2-day history of anorexia, lethargy, and dyspnoea. A physical examination revealed hypothermia, tachypnoea, hypotension, and bilateral pulmonary crackles. The radiographs revealed pulmonary oedema and pleural effusions. The hypotension and pleural effusions exacerbated despite the supportive therapy, and the underlying cause remained undetermined. A further medical inquiry revealed the cat had been exposed to a topical minoxidil solution 3 days before admission. Accordingly, minoxidil toxicosis was managed using both i.v. fluids and vasopressors. Dopamine and norepinephrine were infused for 3 days to normalise the patient's blood pressure and related clinical signs. The cat recovered fully and was discharged 6 days after the minoxidil exposure. This is the first report on the successful management of minoxidil toxicosis in a cat. To broaden our knowledge of minoxidil toxicosis in cats, we have also described the serial changes in the clinical findings of this cat over the treatment period. Furthermore, on the basis of the experience gained from this case, we suggest an optimised management plan for future cases of feline minoxidil toxicosis.

Keywords: dopamine; echocardiography; norepinephrine; radiography; ultrasonography (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlvet:v:67:y:2022:i:6:id:105-2020-vetmed

DOI: 10.17221/105/2020-VETMED

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