Heart Failure Associated With Minoxidil Intoxication in a Cat

    September 2025 in “ Journal of Veterinary Cardiology ”
    Clodoveo Ferri, Olivier Dossin, Vassiliki Gouni
    TLDR Minoxidil exposure can cause heart failure in cats.
    A 13-month-old Russian blue cat experienced two episodes of heart failure, characterized by transient myocardial thickening and pulmonary edema, after contact with a family member using minoxidil for androgenic alopecia. The cat's symptoms resolved with treatment, and echocardiographic follow-ups showed normalization of heart structures. Minoxidil intoxication was retrospectively considered a likely cause of the cat's heart issues, highlighting the potential risk of minoxidil exposure in pets.
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