Pharmacology · single question

What is the reversal agent for benzodiazepine overdose/sedation?

  1. Naloxone
  2. Flumazenil
  3. Neostigmine
  4. Physostigmine
Show answer and explanation

Correct answer: B. Flumazenil

  • A. INCORRECT — Naloxone (Narcan) reverses opioid overdose, not benzodiazepine effects.
  • B. CORRECT — Flumazenil is a competitive benzodiazepine receptor antagonist that reverses benzodiazepine sedation, anxiolysis, and respiratory depression. It is the specific antidote for benzodiazepine overdose.
  • C. INCORRECT — Neostigmine reverses neuromuscular blockade (non-depolarizing NMBAs) by inhibiting acetylcholinesterase.
  • D. INCORRECT — Physostigmine is an anticholinesterase used for anticholinergic toxicity reversal, not benzodiazepine reversal.

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