Document Classification

Section Type: OBJECTIVE

Text: This study compared the bronchodilator effects of 100, 200, and 300 micrograms (base equivalent) of salbutamol in a novel CFC-free propellant system (Airomir in the 3M CFC-Free System ; 3M Pharmaceuticals, St. Paul, Minn.; 108 micrograms of salbutamol sulfate or 90 micrograms of salbutamol base equivalent per inhalation) with that of 100 and 200 micrograms of salbutamol base in a conventional CFC propellant system (Ventolin, CFC-11 / 12 ; Allen and Hanburys, Division of Glaxo Inc., Research Triangle Park, N. C.; 90 micrograms of salbutamol base per inhalation) and placebo.