Which medication is classified under NSAIDs?

The classification of medications as non-steroidal anti-inflammatory drugs (NSAIDs) includes those that primarily provide pain relief, anti-inflammatory effects, and fever reduction without the steroid component. Aspirin, which is also mentioned in the options, is classified as an NSAID as well; it provides anti-inflammatory properties and is used in the management of pain and fever. Both aspirin and ibuprofen belong to this class, indicating that they share similar mechanisms of action.

However, the distinct characteristic of ibuprofen is its widespread use and popularity as a common over-the-counter medication for alleviating pain and inflammation. It is known for having a favorable safety profile, especially when compared to other NSAIDs. This context supports the choice of ibuprofen as a well-recognized NSAID among the options provided.

Penicillin, on the other hand, is an antibiotic specifically used to treat bacterial infections, while metformin is an antidiabetic medication used in the management of type 2 diabetes. Neither of these two medications falls under the category of NSAIDs as they function based on completely different therapeutic principles. Therefore, among the given choices, ibuprofen and aspirin are the correct classifications under NSAIDs. However, the prominence of ibuprofen as a common NSAID may have