If intranasal naloxone is not available, what is an alternative route and typical dose?

If intranasal naloxone is not available, what is an alternative route and typical dose?

• A. Intramuscular naloxone 0.4 mg; may repeat.
• B. Intravenous naloxone 0.4 mg; may repeat.
• C. Subcutaneous 2 mg; may repeat.
• D. Oral 1 mg; may repeat.

Answer: (A)

If intranasal naloxone isn’t available, the practical goal is to reverse the opioid overdose quickly using the fastest reliable non-intranasal route. Intramuscular injection delivers naloxone rapidly without needing IV access, making it the preferred alternative in the field. A typical starting dose is 0.4 mg given intramuscularly, and you may repeat every 2–3 minutes as needed based on the patient’s breathing and responsiveness. Intravenous administration can also work at the same dose, but establishing IV access isn’t always feasible in prehospital care. Subcutaneous dosing at 2 mg is slower and less predictable, and oral dosing is unreliable for rapid reversal due to poor and variable absorption.

If intranasal naloxone isn’t available, the practical goal is to reverse the opioid overdose quickly using the fastest reliable non-intranasal route. Intramuscular injection delivers naloxone rapidly without needing IV access, making it the preferred alternative in the field. A typical starting dose is 0.4 mg given intramuscularly, and you may repeat every 2–3 minutes as needed based on the patient’s breathing and responsiveness. Intravenous administration can also work at the same dose, but establishing IV access isn’t always feasible in prehospital care. Subcutaneous dosing at 2 mg is slower and less predictable, and oral dosing is unreliable for rapid reversal due to poor and variable absorption.