Carbamazole does not usually cause babies to poop green. Carbamazepine is mainly used to eliminate gas in the intestinal tract, which can be disintegrated by changing the surface tension of gas bubbles present in the digestive tract within the chowder and mucus, releasing gas that can be absorbed by the intestinal wall and expelled through intestinal peristalsis. No adverse reactions associated with this drug have been observed; it is contraindicated in patients who are allergic to simethicone or its components. The baby’s green poop may be caused by changes in dietary structure causing indigestion, resulting in abnormal secretion of digestive juices, or cold, gastrointestinal tract inflammation and other reasons. It is recommended to take the child to the hospital for examination, to clarify the cause of the disease, and follow the doctor’s instructions to take appropriate therapeutic measures.