At Medrx, we compound medications for use in Iontophoresis. Dexamethasone is one of the most common Iontophoresis medications we compound for patients in physical therapy. Dexamethasone, an anti-inflammatory medication is helpful in decreasing localized inflammation that occurs in musculoskeletal conditions such as bursitis or tendonitis with decreased mobility. The dexamethasone decrease the inflammatory process and improve mobility.