Single Doses GSK159797 On Patient Safety And Lung Function In Patients With Mild To Moderate Asthma

Inclusion Criteria

• •Subjects with mild to moderate stable asthma but no other lung problems.
• •Male subjects or females who are not able to get pregnant (e.g. post-menopausal or surgically sterile).
• •Non-smokers.
• •Subjects that show a measurable improvement in the function of their lungs after a single dose of salbutamol.