4 Week 2 Way Crossover Double Blind Treatment Phase With Combivent CFC Versus Albuterol Followed by a 4 Week Open Label Combivent Respimat When All Drugs Are Used for Symptom Relief as Needed in Pts With Moderate to Severe Asthma
Conditions
Interventions
- DRUG: Combivent CFC MDI
- DRUG: Albuterol HFA MDI
- DRUG: Respimat Combivent
Sponsor
Boehringer Ingelheim