Loratadine tablets are an anti-allergic drug, in the recommended dose, the common adverse reactions of the drug are weakness, headache, drowsiness, dry mouth, gastrointestinal tract can be nausea, gastritis and so on these adverse reactions. However, loratadine is a tricyclic antihistamine. For patients with previous chronic gastritis, it is recommended that loratadine be taken after meals to reduce the gastrointestinal discomfort caused by loratadine tablets. If the patient does have to take loratadine, because there are more serious allergy symptoms, and gastritis symptoms are also in a kind of active period, to avoid possible adverse drug reactions due to the same time, you can add mucosal protective agents and PPI preparations to symptomatic treatment, so gastritis patients can still take loratadine.