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CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
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Cerebral Ischemic Coma Model Induced by Modified Four-Vessel Occlusion
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Coma with absent brainstem reflexes resulting from zolpidem overdose.

Tomasz J Kuzniar1, Rajesh Balagani, Kathryn A Radigan

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Area of Science:

  • Pharmacology
  • Toxicology
  • Neurology

Background:

  • Zolpidem, a nonbenzodiazepine hypnotic, is widely prescribed for insomnia.
  • While generally well-tolerated, rare instances of respiratory compromise exist.

Observation:

  • A case study involving a young woman with depression following zolpidem overdose.
  • The patient presented with deep coma, respiratory failure, and absent brainstem reflexes.

Findings:

  • Zolpidem overdose can lead to profound central nervous system depression.
  • Complete neurological recovery was achieved with supportive management.

Implications:

  • Acute zolpidem overdose is a critical consideration in patients with coma and absent brainstem reflexes.
  • Highlights the potential for severe respiratory complications from zolpidem, necessitating careful overdose assessment.