药物性食管炎是由于药物滞留于食道,进而溶解释出内含物所造成的食道损伤,随着近几十年来各种药物的增加,尤其抗生素应用的增加,发生率逐年上升。药物从口腔经过食管很快到达胃,很少引起食管的不良反应。但是如果食管本身存在异常,如 Drug-induced esophagitis is due to drug retention in the esophagus, and then dissolved to release the contents caused by esophageal damage, with the increase of various drugs in recent decades, especially the increase in the use of antibiotics, the incidence increased year by year. The drug quickly reaches the stomach from the oral cavity through the esophagus, rarely causing esophageal adverse reactions. However, if there is an abnormal esophagus itself, such as