Metronidazole Induced Cerebellar Toxicity: A Case Report

Shova Sapkota1, Aliska Niroula1, Rina Prajapati2

  • 1Kathmandu Medical College and Teaching Hospital, Sinamangal, Kathmandu, Nepal.

Insights

Metronidazole can cause severe neurotoxicity, including cerebellar issues. This case highlights reversible cerebellar toxicity from this common antibiotic, emphasizing the need for awareness.

Area of Science:

  • Neurology
  • Pharmacology
  • Infectious Diseases

Background:

  • Metronidazole is a crucial antibiotic for bacterial and protozoan infections.
  • High therapeutic use is linked to severe neurotoxic side effects.
  • Reported neurotoxicity includes optic neuropathy, peripheral neuropathy, encephalopathy, and cerebellar toxicity.

Observation:

  • A 55-year-old male presented with dysarthria and positive cerebellar signs.
  • Clinical presentation was suggestive of metronidazole-induced cerebellar toxicity.
  • The patient had undergone two months of metronidazole therapy for a liver abscess.

Findings:

  • Magnetic resonance imaging (MRI) confirmed findings consistent with cerebellar toxicity.
  • Cerebellar signs and symptoms were directly attributed to metronidazole use.
  • Cessation of metronidazole led to the complete resolution of symptoms.

Implications:

  • This case underscores the potential for metronidazole-induced cerebellar toxicity.
  • Highlights the importance of recognizing and managing neurotoxic side effects of metronidazole.
  • Suggests prompt drug withdrawal can lead to symptom recovery in metronidazole-induced neurotoxicity.