NSAIDs, or nonsteroidal anti-inflammatory drugs, are a class of medications commonly used to alleviate pain, inflammation, and fever. They work by blocking the production of certain chemicals in the body that cause inflammation and pain. NSAIDs are commonly used to treat conditions such as arthritis, headaches, menstrual cramps, and muscle aches. However, long-term use of NSAIDs can have side effects, including stomach ulcers, kidney problems, and an increased risk of heart attacks and strokes. It is important to use NSAIDs cautiously and follow the guidance of a healthcare provider when using these medications.