A double-blind, randomized, active-controlled, multicenter, parallel-group trial of levalbuterol in pediatric subjects presenting with acute reactive airways disease. This study was previously posted by Sepracor Inc. In October 2009, Sepracor Inc. was acquired by Dainippon Sumitomo Pharma., and in October 2010, Sepracor Inc's name was changed to Sunovion Pharmaceuticals Inc.