Which sequence correctly arranges the types of pain medication with respect to their sites of action, from MOST peripheral to MOST central?
A) opioids, analgesics, local anesthetics
B) opioids, local anesthetics, analgesics
C) analgesics, opioids, local anesthetics
D) analgesics, local anesthetics, opioids

Question

Quizplus · Accepted Answer

Analgesics (like NSAIDs) act at the site of pain/injury which is peripheral, local anesthetics block nerve conduction near the site of application (also peripheral but more localized than NSAIDs), and opioids act primarily on the central nervous system.

Which Sequence Correctly Arranges the Types of Pain Medication with Respect