Diclofenac sodium generally do not take more than a few days is not clearly defined, taking diclofenac sodium may produce adverse reactions, it is recommended to take under the guidance of a doctor. Diclofenac sodium has diclofenac sodium enteric-coated tablets, diclofenac sodium double-release enteric-coated capsules and other dosage forms, different dosage forms of dosage, requirements are not the same, should be based on the patient’s condition to decide to take the length of time. It is generally recommended to take diclofenac sodium for 3 to 5 days to observe whether the symptoms are relieved or not, if taking diclofenac sodium is ineffective, the medication should be stopped promptly. Symptoms such as acid reflux, nausea and vomiting, heartburn sensation, headache, dizziness, drowsiness and body swelling may occur after taking diclofenac sodium. The symptoms usually disappear after stopping the medicine. The drug is contraindicated in people who are allergic to diclofenac sodium, people with stomach or intestinal ulcers, and patients with severe heart failure. Cautions: the drug should be used in the shortest possible time with the smallest dose to control symptoms and should not be used simultaneously with other NSAIDs. It is recommended that diclofenac sodium should be taken under medical supervision to avoid unauthorized use of the drug.