Non-steroidal anti-inflammatory drugs, or NSAIDs, are among the most widely used drugs worldwide, available in both prescription and over-the-counter forms, such as aspirin, ibuprofen, naproxen, and others. Most NSAIDs, with the exception of aspirin, work by inhibiting the activity of a family of enzymes called cyclooxygenases, which drive inflammatory processes. But because these inflammatory processes can be beneficial in some contexts and because the drugs often elicit off-target effects, there are some concerns about their use. In this Aliquot, I describe current recommendations and concerns surrounding NSAID use.