Berodual® Respimat® vs Metered Dose Inhaler in Patients With Chronic Obstructive Pulmonary Disease
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: Berodual® Respimat® inhaler
- DRUG: Berodual® metered dose inhaler
Sponsor
Boehringer Ingelheim