OBJECTIVE To evaluate the effect of different formulation(aerosol and oral) of Chinese classic formula Danggui-beimu-kushen on chronic obstructive pulmonary(COPD) murine model and to study its mechanisms. METHODS The bronchoalveolar lavage fluid(BALF) and lung tissues were collected. Differential WBC count and content of cytokine(KC, MIP2, TNF-?) in BALF, HE staining for lung biopsy, KC and Muc5 AC mRNA expression of lung and content in BALF were determined. RESULTS Both the gavage and aerosol groups decrea...