Due to its chemical properties, budesonide acts mainly in the mucosa of the esophagus and the effect on the entire body is only slight. Therefore, the classical side effects of corticosteroids have been observed only in significantly lower frequency and not in the same intensity. However, as with any therapy, side effects may occur with budesonide treatment. During the study, you will therefore be closely monitored so that any side effects that occur can be treated quickly.