Which of the following statements about nonopioid analgesics is true?
A. Nonopioid analgesics are chemically and structurally unrelated to morphine.
B. Nonopioid analgesics are effective against severe, sharp pain.
C. Nonopioid analgesics produce tolerance or physical dependency with chronic use.
D. Nonopioid analgesics produce analgesia through a central, rather than a peripheral, mechanism of action.
Answer: A
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