Which medication is NOT classified as a nonopioid analgesic?

Oxycodone is classified as an opioid analgesic, which differentiates it from nonopioid analgesics such as acetaminophen, ibuprofen, and aspirin. Opioid analgesics are derived from opium and are used to treat moderate to severe pain due to their ability to interact with opioid receptors in the central nervous system.

In contrast, nonopioid analgesics, like acetaminophen, ibuprofen, and aspirin, primarily relieve mild to moderate pain and reduce fever, but they do not have the same mechanism of action as opioids. Acetaminophen works largely in the brain to inhibit prostaglandin synthesis, ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that decreases inflammation and pain through inhibition of cyclooxygenase (COX) enzymes, and aspirin has similar properties to ibuprofen, contributing to pain relief and anti-inflammatory effects.

Therefore, identifying oxycodone as the medication not classified as a nonopioid analgesic is accurate due to its specific classification as an opioid.