Roxadustat is a medication used to treat anemia, particularly in patients with chronic kidney disease. It works by mimicking the effects of natural substances in the body that help produce red blood cells, thereby increasing hemoglobin levels. This can improve energy levels and overall quality of life for those affected by anemia. The drug functions by inhibiting a specific enzyme that regulates the body's response to low oxygen levels. By doing so, roxadustat stimulates the production of erythropoietin, a hormone that promotes red blood cell formation. It is administered orally and has been studied for its effectiveness and safety in various clinical trials.