Ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that is used to relieve moderate to severe pain. It works by reducing inflammation and blocking the production of certain chemicals in the body that cause pain and swelling. Ketorolac is commonly prescribed for short-term pain relief, such as after surgery or injury, and is available in both oral and injectable forms. It is important to follow the prescribed dosage and duration of treatment to avoid potential side effects.