Asthma Patient (IMAGE) Washington University School of Medicine Caption Mario Castro, M.D., (right) listens to the breathing of asthma patient Sara Fisher, who is taking a test to measure lung function. Castro's research has shown that the eczema drug dupilumab also helps patients with moderate to severe asthma. Credit Matt Miller Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.