Which drug is considered a common NSAID used for inflammation or pain?

Ibuprofen is a widely recognized nonsteroidal anti-inflammatory drug (NSAID) used primarily to relieve inflammation, pain, and fever. It functions by inhibiting the enzymes responsible for producing prostaglandins, substances in the body that mediate inflammation and pain. As a result, ibuprofen is effective in treating conditions such as arthritis, menstrual cramps, headaches, and muscle aches.

In contrast, acetaminophen is classified as a pain reliever and fever reducer but does not possess significant anti-inflammatory properties compared to NSAIDs. Codeine is an opioid analgesic, mainly used for moderate to severe pain, which works differently by binding to specific receptors in the brain without specifically addressing inflammation. Penicillin, on the other hand, is an antibiotic used to treat bacterial infections and does not provide pain relief or inflammation control. Thus, ibuprofen stands out as the correct answer due to its primary role and effectiveness in managing both inflammation and pain.