The analgesic duration of one capsule of Celecoxib is usually about 12 hours, and patients can take one capsule twice a day. Celecoxib is a new generation of non-steroidal anti-inflammatory analgesic, mainly used for the treatment of pain caused by various arthritis, rheumatoid arthritis and acute pain caused by various traumatic injuries. Celecoxib also has some pain relief effect on chronic neck, shoulder, back and leg pain and ankylosing spondylitis. After oral administration of Celecoxib, the peak blood concentration is usually reached in about 3 hours, and the effect can be maintained for about 12 hours. Celecoxib has no significant irritation to the gastrointestinal tract and can reduce damage to the patient’s gastrointestinal tract. Patients taking anticoagulants, such as warfarin and other drugs, should not take celecoxib at the same time will increase the risk of bleeding.