The specification of diclofenac sodium enteric-coated tablets is generally 25mg/tablet, and the recommended daily dose for toothache is 100 mg-150 mg (4-6 tablets), divided into 2-3 times, and the daily dose should not be more than 150 mg. The instructions for the use of this product are for oral intake, with the dosage of 1-2 tablets at a time. 1. Diclofenac sodium enteric-coated tablets have anti-inflammatory and analgesic effects, and are suitable for relieving mild and moderate pains such as arthritic swelling and pain, rheumatic pain, menstrual cramps, toothache, headache, etc., but should not be taken for a long period of time. If taken for a long time may stimulate the gastrointestinal tract leading to abdominal pain, bloating and other discomfort, and in severe cases, gastric ulcers may occur. 2. Diclofenac sodium enteric-coated tablets may cause nausea, vomiting, cardiac arrhythmia, electrolyte disorders, neurological discomforts and other adverse reactions, so patients are advised to use the medication under the guidance of a doctor, and should not blindly self-medicate to avoid adverse effects. It should be noted that patients with hepatic and renal impairment, patients with gastrointestinal ulcers are prohibited, and pregnant and lactating women are prohibited. Diclofenac sodium can only be used for temporary pain relief, does not have the efficacy of treating dental diseases. Especially for acute endodontitis, apical periodontitis and other diseases, pain relief effect is not obvious. It is recommended that patients go to the dentist of a regular hospital to clarify the cause of the disease and carry out targeted treatment.