Ketorolac is a medication for short-term pain relief that may cause serious side effects such as heart attack, stroke, ulcers, and kidney failure. Learn about the warnings, interactions, dosage, and storage of ketorolac from MedlinePlus, a service of the U.S. National Library of Medicine. Ketorolac is used for the short-term treatment of moderate to severe pain. It is usually used before or after medical procedures or after surgery. Learn about side effects, dosages, interactions, and more. Ketorolac is a non-steroidal anti-inflammatory drug (NSAID) used to relieve moderate to severe pain from surgery, fractures, kidney stones, and dental procedures. Learn its forms, recommended dosages, side effects, and safety precautions for proper medical use