Nausea and lack of appetite after taking medication for celiac gastritis may be due to drug stimulation of the gastrointestinal tract or the effect of the drug has not been played, etc. If the symptoms are mild, it is usually normal. If the symptoms are severe, it is recommended to seek medical attention. Erosive gastritis is also known as chronic non-atrophic gastritis, is the gastric mucosa due to Helicobacter pylori infection or long-term alcoholism and other factors caused by chronic, superficial inflammation, endoscopic gastric mucosa can be presented with congestion, edema, erosion and other lesions. Patients often manifest abdominal distension and abdominal pain, acid regurgitation and belching, nausea, loss of appetite and other symptoms. Epicritic gastritis is mainly treated by acid inhibitors such as omeprazole, gastric mucosal protection drugs such as magnesium aluminum carbonate, and dynamics such as domperidone, accompanied by Helicobacter pylori infection, can also be taken at the same time amoxicillin, clarithromycin, and other antibiotic drugs. Celiac gastritis nausea after taking medication without appetite, on the one hand, may be due to the taking of drugs, the effect of the drug has not been fully exerted, the patient’s nausea, no appetite due to the symptoms have not been relieved; on the other hand, may also be the acid-suppressing drugs, antibiotics and other drugs on the gastrointestinal tract has a certain degree of irritation, the drugs produced after nausea, abdominal pain, loss of appetite and other side effects. If the symptoms of nausea and lack of appetite after taking the medicine are mild, it is generally normal, need to pay more attention to observation, generally after taking the medicine for a period of time can be gradually relieved. However, if the symptoms are serious, it may not be normal, it is recommended to go to the hospital in time for examination. Patients with celiac gastritis are advised to seek medical attention in a timely manner, and the medication must be taken in strict accordance with the doctor’s instructions, and not on their own, so as not to delay or even aggravate the condition.