Which of the following analgesics is classified as a nonsteroidal anti-inflammatory drug (NSAID)?
Ibuprofen
Morphine
Tramadol
Lidocaine
Ibuprofen is a NSAID that works by inhibiting COX enzymes, which are responsible for the synthesis of prostaglandins. By inhibiting their synthesis, ibuprofen reduces pain and inflammation.
Incorrect options:
2) Morphine - Morphine is a potent opioid analgesic that works by binding to opioid receptors in the brain and spinal cord, and does not belong to the NSAID class.
3) Tramadol - Tramadol is a synthetic opioid analgesic that also has some serotonin and norepinephrine reuptake inhibition properties, but it does not belong to the NSAID class.
4) Lidocaine - Lidocaine is a local anesthetic that works by blocking the sodium channels in nerve cells, and it does not belong to the NSAID class.