Drug-induced esophagitis

Under normal circumstances, when medication is taken orally, the drug quickly passes from the oral cavity through the esophagus to the stomach, rarely causing adverse esophageal reactions. However, if the esophagus itself has abnormalities, such as compression, stricture, motility disorders, gastroesophageal reflux, etc., or if the medication is taken improperly, such as taking it in a lying position or with too little water, resulting in prolonged retention of the drug in the esophagus, certain drugs can cause esophageal injury. This esophageal mucosal damage caused by drugs is called drug-induced esophagitis.