This study will explore information on whether changing the salt formulation of indacaterol affects the incidence of post-inhalation cough.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Presence of cough within 5 minutes post dose and the onset of cough (relative to inhalation)
Timeframe: throughout the study
Severity of cough: to be judged independently by both the patient and the physician
Timeframe: throughout the study
Occurrence of cough within 1 minute post dose
Timeframe: throughout the study
Number of coughs
Timeframe: throughout the study
Duration of coughing
Timeframe: throughout the study