2011
DOI: 10.1097/wnf.0b013e3182334b35
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Metronidazole-Induced Central Nervous System Toxicity

Abstract: Metronidazole can rarely cause central nervous system toxicity; it does not seem to be a dose- or duration-related phenomenon. Most patients will have MRI abnormalities. Prognosis is excellent with metronidazole cessation.

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Cited by 186 publications
(144 citation statements)
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“…Repeat courses of metronidazole are discouraged because of the risk of neurotoxicity associated with prolonged exposure to this drug. 31 For example, peripheral neuropathy has been associated with metronidazole use for periods of weeks to months. 31 Cerebellar dysfunction, altered mental status, and seizures were also described in 64 patients exposed to metronidazole at a mean cumulative dose of 93.4 g (range 250 mg to 1095 g) for a median duration of 54 days.…”
Section: Treatment Of Second or Later Recurrencementioning
confidence: 99%
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“…Repeat courses of metronidazole are discouraged because of the risk of neurotoxicity associated with prolonged exposure to this drug. 31 For example, peripheral neuropathy has been associated with metronidazole use for periods of weeks to months. 31 Cerebellar dysfunction, altered mental status, and seizures were also described in 64 patients exposed to metronidazole at a mean cumulative dose of 93.4 g (range 250 mg to 1095 g) for a median duration of 54 days.…”
Section: Treatment Of Second or Later Recurrencementioning
confidence: 99%
“…31 For example, peripheral neuropathy has been associated with metronidazole use for periods of weeks to months. 31 Cerebellar dysfunction, altered mental status, and seizures were also described in 64 patients exposed to metronidazole at a mean cumulative dose of 93.4 g (range 250 mg to 1095 g) for a median duration of 54 days. 31 Therefore, oral vancomycin may be preferred for patients with a second or later recurrence of C. difficile infection or predisposing neurologic conditions.…”
Section: Treatment Of Second or Later Recurrencementioning
confidence: 99%
“…En difusión, las lesiones aparecen iso o hiperintensas, y rara vez son hipointensas en la secuencia ADC (apparent diffusion coefficient). En los casos en que se dispone de imágenes de control, éstas son reversibles, salvo cuando inicialmente la lesión fue hipointensa en ADC 7,3 . La fisiopatología exacta de este cuadro se desconoce.…”
Section: Discussionunclassified
“…Existen múltiples reportes de casos de neurotoxicidad inducida por metronidazol con manifestaciones tanto centrales como periféricas: encefalopatía, crisis epilépticas, síndrome cerebeloso, neuropatía sensitiva, neuropatía autonómica y neuropatía óptica, entre otros 1,2 . Estos efectos adversos se consideran infrecuentes, aunque no se cuenta con datos precisos al respecto 3 . Se han propuesto como posibles factores de riesgo presencia de disfunción hepática 4 , el tiempo de uso del fármaco y la dosis total acumulada 5 , aunque una revisión sistemática reciente, limitada a casos con compromiso solamente de sistema nervioso central (SNC), no mostró asociación con dosis ni duración del tratamiento 3 .…”
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