Levalbuterol - Familydoctor.org Information for patients in English and Spanish. http://www.familydoctor.org/cgi-bin/multum.pl?op=GetLeaflet&id=14176&name=levalbuterol
Xopenex Full prescribing information from RxList. http://www.rxlist.com/cgi/generic2/leval.htm
Xopenex Official pharmaceutical website by Sepracor. http://www.xopenex.com/
