Safety and Efficacy of Berodual® Respimat® Compared to Berodual® MDI (Metered Dose Inhaler) in Asthma Patients
Conditions
Interventions
- DRUG: Berodual® via Respimat®, high dose
- DRUG: Berodual® via Respimat®, low dose
- DRUG: Berodual® via MDI, high dose
- DRUG: Placebo Respimat®
- DRUG: Placebo MDI
Sponsor
Boehringer Ingelheim