Which statement correctly describes acetaminophen's pharmacologic action compared with NSAIDs?

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Multiple Choice

Which statement correctly describes acetaminophen's pharmacologic action compared with NSAIDs?

Acetaminophen relieves pain and reduces fever mainly through central nervous system effects, not by suppressing inflammation in the tissues. It appears to inhibit a brain form of the cyclooxygenase enzyme, lowering prostaglandin synthesis in the CNS, which accounts for its analgesic and antipyretic actions. It does not significantly inhibit peripheral COX enzymes, so inflammation is not notably diminished—unlike NSAIDs, which reduce prostaglandin production in peripheral tissues and thus inflammation. It does not block dopamine receptors, nor does it destroy COX enzymes in peripheral tissues. That combination of analgesic and antipyretic effects with minimal anti-inflammatory action makes the described statement the best fit.

Acetaminophen relieves pain and reduces fever mainly through central nervous system effects, not by suppressing inflammation in the tissues. It appears to inhibit a brain form of the cyclooxygenase enzyme, lowering prostaglandin synthesis in the CNS, which accounts for its analgesic and antipyretic actions. It does not significantly inhibit peripheral COX enzymes, so inflammation is not notably diminished—unlike NSAIDs, which reduce prostaglandin production in peripheral tissues and thus inflammation. It does not block dopamine receptors, nor does it destroy COX enzymes in peripheral tissues. That combination of analgesic and antipyretic effects with minimal anti-inflammatory action makes the described statement the best fit.

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