Which agent reverses benzodiazepines?

• A. Flumazenil
• B. Naloxone
• C. Atropine
• D. Epinephrine

Answer: (A)

Reversing benzodiazepines relies on a specific antagonist that binds to the benzodiazepine site on the GABA-A receptor, blocking the drug’s effect. The best answer is flumazenil, a competitive antagonist at that receptor site, which rapidly reverses sedation, anxiolysis, and amnesia caused by benzodiazepines during overdose or after procedural sedation. Because flumazenil has a shorter duration than many benzodiazepines, patients must be observed for possible re-sedation and may require careful monitoring or repeat dosing. It’s not effective for reversing opioids, antimuscarinic effects, or adrenergic-mediated states, which is why naloxone, atropine, and epinephrine do not reverse benzodiazepines.