Side effects of Ammonium Chloride in children are mainly gastrointestinal reactions such as nausea and vomiting, and acidosis and hypokalemia may occur with long-term use. Ammonium chloride has the effect of relieving cough and resolving phlegm, and is usually used to treat colds with phlegm that cannot be coughed up. It has no side effects if used in moderation. Overdose and long-term use can cause acidosis and hypokalemia in children, this drug is prone to nausea, vomiting, diarrhea, abdominal pain and other gastrointestinal reactions. Ammonium chloride is best used under the guidance of a pediatrician. You should not increase or decrease the dosage of the drug at your own discretion, or change the time of taking the drug to avoid serious side effects.