What is the typical initial intranasal dose of naloxone for suspected opioid overdose?

What is the typical initial intranasal dose of naloxone for suspected opioid overdose?

• A. 2 mg total (1 mg per nostril).
• B. 0.4 mg total.
• C. 4 mg total.
• D. 1 mg total.

Answer: (A)

Naloxone given intranasally is dosed to quickly reverse opioid effects. The usual starting dose is 2 mg total, delivered as 1 mg in each nostril. This amount provides rapid absorption through the nasal mucosa and achieves effective receptor blockade without needing a larger initial volume. If there’s not a sufficient response after a couple of minutes, you can give another 2 mg (for a total of 4 mg). Lower options like 0.4 mg or 1 mg total are generally not enough to reverse significant opioid-induced respiratory depression, and 4 mg total is typically used if the first dose isn’t effective or if potent opioids are involved, but the standard initial dose is 2 mg.

Naloxone given intranasally is dosed to quickly reverse opioid effects. The usual starting dose is 2 mg total, delivered as 1 mg in each nostril. This amount provides rapid absorption through the nasal mucosa and achieves effective receptor blockade without needing a larger initial volume. If there’s not a sufficient response after a couple of minutes, you can give another 2 mg (for a total of 4 mg).

Lower options like 0.4 mg or 1 mg total are generally not enough to reverse significant opioid-induced respiratory depression, and 4 mg total is typically used if the first dose isn’t effective or if potent opioids are involved, but the standard initial dose is 2 mg.