Diclofenac sodium is a western pharmaceutical preparation, belonging to the anti-inflammatory and analgesic drugs. Diclofenac sodium has the effect of anti-inflammatory and analgesic, common preparations are extended-release tablets, capsules, enteric-coated tablets, sprays, etc. It is usually used in the treatment of acute arthritis, chronic arthritis, rheumatoid arthritis, ankylosing spondylitis, soft-tissue rheumatism, etc., and can also be used in the treatment of non-bacterial inflammation after ophthalmic surgery. Adverse reactions such as epigastric pain, nausea, headache, rash, insomnia, anxiety may occur after the use of diclofenac sodium, which is contraindicated in patients who are allergic to the components of this product, active peptic ulcer bleeding, severe heart failure and so on. Patients are advised to visit the hospital in time and use the drug strictly under the guidance of the physician.