Diclofenac sodium and Erexib belong to the non-steroidal anti-inflammatory drugs, the difference between the two mainly lies in the composition of the drug, drug indications and adverse reactions. 1. Composition: Diclofenac sodium is the main component of diclofenac sodium, which is only weakly selective for cyclo-oxygenase-2, while the active ingredient of Erexib is Erexib, which is a selective inhibitor of cyclo-oxygenase-2. 2. Drug indications: Erythroxib is indicated for osteoarthritis, while diclofenac sodium is indicated for spondyloarthropathies, gout, rheumatoid arthritis, rheumatoid arthritis, osteoarthritis, rheumatoid pain in various soft tissues, and mild to moderate pain caused by surgery, strain injury and other factors. 3. Adverse drug reactions: diclofenac sodium adverse drug reactions are mainly headache, dizziness, dizziness, elevated aminotransferases, skin rash and vomiting, diarrhea and other gastrointestinal discomfort, erliximab common adverse drug reactions for epigastric discomfort, fecal occult blood, alanine aminotransferase elevation. In summary, diclofenac sodium has wider indications than erixib, but the adverse effects are relatively obvious. However, it is worth noting that Erexib may have an increased risk of cardiovascular thrombotic events. Drugs should be used under the guidance of a physician, and patients are advised to go to the relevant departments of regular hospitals for detailed consultation.