Schilling is the trade name of compound glutamine granules, which does not specify the time point of taking the drug in the instruction manual, but in order to reduce the stimulation of the drug on the gastrointestinal tract, it is recommended to take after meals. The instruction of compound glutamine granules does not specify the time point of taking the drug, but there are gastrointestinal adverse reactions such as nausea after using the drug, so it is generally recommended to take it after meals in clinical practice. The drug is a compound preparation, in which glutamine on the gastrointestinal mucosal epithelial components of hexosamine and glucosamine biochemical synthesis has a promotional effect on the gastrointestinal mucosal injury has a protective and restorative effect; sodium azulene sulfonate can be a direct effect of the inflammatory mucosa, has an anti-inflammatory effect. Clinically the drug is used for the treatment of gastritis, gastric ulcer and duodenal ulcer. Occasionally, there are nausea, constipation, diarrhea and other adverse reactions during the use of the drug. It is contraindicated for those who are allergic to the product and its components. Pregnant and lactating women, the elderly should be cautious. If medication is needed, it should be used under the guidance of a specialist.