Effect of Traditional Chinese Medicine on Outcomes in Patients With Severe / Very Severe COPD
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: Salmeterol / fluticasone (Seretide®)
- DRUG: Bufeijianpi granule
- DRUG: Bufeiyishen granule
- DRUG: Yiqizishen granule
- DRUG: Placebo Bufeijianpi granule
- DRUG: Placebo Bufeiyishen granule
- DRUG: Placebo Yiqizishen granule
Sponsor
Henan University of Traditional Chinese Medicine