Amino acids can be injected in moderation for gastric dyspepsia, especially if accompanied by malnutrition. However, amino acids do not have the effect of treating dyspepsia and should not be used in excess. 1. Gastric dyspepsia is a kind of gastrointestinal peristalsis or impaired digestion and absorption function caused by gastrointestinal peristalsis disorder or Helicobacter pylori infection and other factors, and the patient’s main manifestations are abdominal pain and bloating, acid regurgitation and belching, nausea and vomiting. Gastric dyspepsia will affect the patient’s absorption of nutrients, and even lead to malnutrition. 2. Amino acid injection mainly refers to the injection of compound amino acid injection into the body to meet the body’s need for protein synthesis and improve nitrogen balance. In the clinic, it is mainly used for patients who can not take oral or intestinal supplementation of nutrients, and the nutrition can not meet the needs of patients, can be injected intravenously to meet the body’s need to synthesize proteins. 3. For patients with gastric dyspepsia, especially when accompanied by malnutrition, amino acids can be injected for supplementing nutrition and improving patients’ metabolism. However, it should be noted that amino acids do not have the function of treating diseases, and excessive injection of amino acids may increase the burden of digestion and absorption of the stomach and intestines, which is not conducive to the recovery of the disease, or even aggravate the disease, so the use of amino acids should pay attention to the appropriate amount. 4. Amino acids may cause chills, chills, fever, nausea, vomiting, chest tightness, respiratory distress and other adverse reactions when used, and should be used with caution in patients with hepatic or renal insufficiency, and is forbidden in patients with hepatic coma and unconditional dialysis for uremia, as well as those who are allergic to the product. Patients with gastric dyspepsia should be reasonably medicated under the guidance of a doctor when injecting amino acids, and should not self-medicate to avoid delaying or even aggravating the condition.