Patients with atrophic gastritis can take artificial oxalate metronidazole if necessary. Artificial oxalic metronidazole contraindications include allergy to metronidazole or pyrrole drugs; active central nervous system disease and blood disease patients; pregnant women and alcohol drinkers, but patients with atrophic gastritis is not a contraindication; therefore, patients with atrophic gastritis can take this drug. Artificial oxalic metronidazole is a kind of compound preparation, which can be used for the treatment of endodontitis, apical periapical inflammation, acute wisdom tooth pericoronitis, and localized alveolar abscess and other symptoms. Common adverse reactions to Artificial Oxalic Metronidazole include gastrointestinal reactions such as nausea, vomiting diarrhea, and loss of appetite; and allergic reactions such as rash, pruritus, and urticaria. In addition, artificial oxalic acid metronidazole has certain risks, patients need to get the guidance of specialists, not self-medication.