Sodium bicarbonate, commonly known as baking soda, is an acid-base regulating drug for the body, which is clinically used to treat metabolic acidosis or relieve the symptoms of excessive stomach acidity. The efficacy is clear, but because the drug is a weak alkaline drug, it may cause uncomfortable reactions in the process of use, as follows: 1. 3. Long-term application may cause frequent urination, urinary urgency, persistent headache, loss of appetite, nausea and vomiting, and abnormal fatigue and weakness; 4. Carbon dioxide is produced when neutralizing gastric acid, which may cause belching and secondary increase in gastric acid secretion. Therefore, in the process of use, except for acidosis caused by cardiopulmonary resuscitation, it should be used from a small dose with a drip time of 4-8 hours; in addition, because the drug is weakly alkaline, it is irritating to local tissues, so do not leak out of blood vessels when injecting; it is not recommended for children under 6 years old.