Baking soda is commonly used clinically as sodium bicarbonate tablets, the usual dose of 0.5g-1g orally, 3 times a day, the course of treatment is generally not more than 7 days. Sodium bicarbonate tablets are antacids, which can rapidly neutralize stomach acid after oral administration, relieve symptoms such as hyperacidity or heartburn, acid reflux, etc. They can be used to treat gastritis, peptic ulcer, gastroesophageal reflux disease, etc., but the effect is weak and the duration is short. Sodium bicarbonate tablets can not be long-term treatment of gastric acid, can only alleviate the symptoms can not be cured, easy to relapse, excessive intake will have a certain impact on patients with hypertension or chronic kidney disease, such patients to avoid taking a long time. At the same time, the carbon dioxide produced when neutralizing stomach acid may cause belching, which may be secondary to increased acid secretion. Sodium bicarbonate precautions: continuous use shall not exceed 7 days, the symptoms have not been relieved or disappeared in time to consult a physician; such as overdose and the emergence of adverse reactions, consult a doctor in time; children’s dosage, please consult a physician or pharmacist. If the stomach acid is obvious, in addition to sodium bicarbonate drugs, there are drugs to inhibit gastric acid such as omeprazole, gastric mucosal protective agents such as magnesium aluminum carbonate, gastric stimulation drugs such as mosapride, etc., it is recommended to consult the gastroenterology department in a timely manner, improve the gastroscopy and other tests to clarify the cause of the disease, standardize the treatment under the guidance of the physician, avoid self-medication, and delayed the condition.