1. Advair Diskus (Fluticasone Propionate and Salmeterol Xinafoate) Inhalation Powder, Application No.: 21–077, Drug Approval Package. http://www.accessdata.fda.gov/drugsatfda_docs/nda/2000/21077_AdvairDiskus.cfm. Date created: February 03, 2003. Date last accessed: October 1 2012.
2. Symbicort (budesonide/formoterol fumarate dihydrate) Inhalation Aerosol, NDA: 021929, Drug Approval Package http://www.accessdata.fda.gov/drugsatfda_docs/nda/2006/021929_symbicort_toc.cfm. Date created: October 30, 2008. Date last accessed: October 1 2012.
3. Comparison of two twice-daily doses of budesonide/formoterol maintenance and reliever therapy;Aubier;Eur. Respir. J.,2010
4. Low dose inhaled budesonide and formoterol in mild persistent asthma: the OPTIMA randomized trial;O'Byrne;Am. J. Respir. Crit. Care Med,2001
5. Effect of inhaled formoterol and budesonide on exacerbations of asthma. Formoterol and Corticosteroids Establishing Therapy (FACET) International Study Group;Pauwels;N. Engl. J. Med,1997