Ketoprofen can inhibit the biosynthesis of inflammatory substances such as prostaglandin, leukotriene and thromboxane by reversibly inhibiting the activities of cyclooxygenase pro-inflammatory peptide and / or lipoxygenase. Ketoprofen can reduce the release of bradykinin. Ketoprofen has good antipyretic, analgesic and anti-inflammatory effects. Ketoprofen can also inhibit the adhesion and aggregation of platelets, It is widely used in the treatment of rheumatoid arthritis, rheumatoid arthritis, ankylosing spondylitis, osteoarthritis pain, rheumatoid arthritis, dysmenorrhea, toothache, postoperative pain, cancer pain and acute renal colic. Clinical studies have shown that ketoprofen, as an important non steroidal anti-inflammatory drug, has the advantages of small dose, high efficacy, good tolerance and mild side effects.