ADVAIR® DISKUS® INHALER (FLUTICASONE PROPIONATE/SALMETEROL) VERSUS SEREVENT® DISKUS® INHALER (SALMETEROL) FOR THE TREATMENT OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE EXACERBATIONS. ADVAIR® DISKUS® INHALER AND SEREVENT® DISKUS® INHALER ARE TRADEMARKS OF THE GSK GROUP OF COMPANIES.: