What is the recommended adult dose regimen for flumazenil?

• A. 1 mg IV every 15 minutes
• B. 50 mcg bolus; maximum 2 mg per hour
• C. 200 mcg every 1-2 minutes titrated to relief of symptoms; maximum 3 mg per hour
• D. 0.5 mg IV every 2 minutes

Answer: (C)

Flumazenil is used to reverse benzodiazepine-induced sedation, and the reversal works best when given in small, titratable doses rather than a single fixed amount. The adult dosing you’d use is 200 micrograms IV, repeated every 1–2 minutes, until the patient shows adequate reversal (wakefulness, improved respiration), with a maximum of about 3 milligrams per hour. This titration approach lets you fine-tune the effect, minimizing the risk of overshooting into agitation, hypertension, seizures, or withdrawal, especially since flumazenil’s effect can wear off before the benzodiazepine does. In practice, be cautious with patients who are benzodiazepine-dependent or who may have co-ingestants that lower seizure thresholds, as flumazenil can precipitate withdrawal seizures in those scenarios.