Side effects of diclofenac sodium enteric-coated tablets include: gastrointestinal reactions such as stomach upset, burning, acid reflux, poor appetite (poor appetite), nausea, rare ulcers, bleeding, perforation; nervous system such as headache, dizziness, drowsiness, euphoria; swelling, oliguria, electrolyte disorders; rare transient elevation of serum aminotransferases; rare symptoms of jaundice, cardiac arrhythmia, granulocytopenia, thrombocytopenia. Diclofenac sodium enteric-coated tablets are mainly used to relieve the symptoms of joint swelling and pain of various arthritis; treatment of non-articular rheumatic pain in various soft tissues; acute mild to moderate pain; antipyretic effect on fever in adults and children. In addition, diclofenac sodium enteric-coated tablets are contraindicated in patients who are allergic to the components of diclofenac sodium enteric-coated tablets, contraindicated in patients whose use of aspirin or other non-steroidal anti-inflammatory drugs causes asthma, urticaria or other allergic reactions, contraindicated in perioperative pain of coronary artery bypass grafting surgery, contraindicated in children under the age of 12 months, contraindicated in pregnant women and breastfeeding mothers, and cautioned in elderly people who are taking diuretics or who have lost extracellular fluid. Gastric or intestinal ulcers are prohibited, the use of non-steroidal anti-inflammatory drugs triggered gastrointestinal bleeding or perforation of the patient is prohibited, active peptic ulcers or bleeding patients are prohibited, patients with severe heart failure is prohibited, hepatic and renal impairment or history of ulcers patients with caution, to limit the sodium intake of patients should be used with caution to avoid combining drugs with other non-steroidal anti-inflammatory drugs. If you need to use diclofenac sodium enteric-coated tablets, it is recommended to consult a professional doctor, follow the doctor’s instructions to standardize the treatment, not blindly use their own medicine.