Anakinra is a medication used to treat autoimmune conditions, particularly rheumatoid arthritis. It is a type of biologic therapy that works by blocking the action of interleukin-1 (IL-1), a protein that contributes to inflammation and joint damage. By inhibiting IL-1, anakinra helps reduce pain and swelling in affected joints. Anakinra is administered through subcutaneous injection, typically once daily. It is often prescribed for patients who have not responded well to other treatments. Common side effects may include injection site reactions, headaches, and increased risk of infections due to its immunosuppressive effects.