Ornidazole-induced involuntary tremor in a Chinese woman: a rare case report and literature review

Abstract Nitromidazole antibiotics, exemplified by metronidazole and ornidazole, have been reported to trigger a spectrum of adverse effects. These encompass ataxia, hearing loss, visual impairment, psychomotor dysfunction, intellectual impairment, and epileptic seizures (Rinsho Shinkeigaku 64:637-6...

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Main Authors: Hui Wang, Yanling Huang, Xuefei Wang, Fulan Yang, Chunjing Jiang, Yueqin Zhou, Liu Yang
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Neurology
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Online Access:https://doi.org/10.1186/s12883-025-04316-z
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Summary:Abstract Nitromidazole antibiotics, exemplified by metronidazole and ornidazole, have been reported to trigger a spectrum of adverse effects. These encompass ataxia, hearing loss, visual impairment, psychomotor dysfunction, intellectual impairment, and epileptic seizures (Rinsho Shinkeigaku 64:637-641, 2024). Nevertheless, cases of involuntary limb tremors have been scarcely documented. Ornidazole, the most recent derivative within this class, boasts a longer half - life and is infrequently linked to limb tremors. This article reports a 63-year-old female patient who developed progressive limb tremors following long-term, high-dose administration of ornidazole, with symptoms gradually alleviating after discontinuation of the drug.
ISSN:1471-2377