Which is NOT a common route of administration for naloxone?

Which is NOT a common route of administration for naloxone?

• A. Intramuscular
• B. Oral
• C. Intravenous
• D. Intranasal

Answer: (B)

Reversing an opioid overdose requires a dose that acts quickly once it enters the bloodstream. Naloxone is effective because it rapidly reaches systemic circulation and competes with opioids at the receptors. Intramuscular, intravenous, and intranasal routes provide fast and reliable absorption, which is essential for a prompt reversal of dangerous breathing depression. Oral administration, however, is not suitable for emergencies because naloxone has very poor oral bioavailability due to extensive first-pass metabolism in the liver; only a small amount would reach the bloodstream, making it unlikely to reverse the overdose quickly. So the option that is not a common route for naloxone in an emergency setting is the oral route.

Reversing an opioid overdose requires a dose that acts quickly once it enters the bloodstream. Naloxone is effective because it rapidly reaches systemic circulation and competes with opioids at the receptors. Intramuscular, intravenous, and intranasal routes provide fast and reliable absorption, which is essential for a prompt reversal of dangerous breathing depression. Oral administration, however, is not suitable for emergencies because naloxone has very poor oral bioavailability due to extensive first-pass metabolism in the liver; only a small amount would reach the bloodstream, making it unlikely to reverse the overdose quickly. So the option that is not a common route for naloxone in an emergency setting is the oral route.