1. Conclusion:Kechuan oral liquid has an obvious effect on antitussive, expectotating phlegm, panting-calming and anti-inflammation.

2. Objective:To observe the curative effect of Kechuan Tang( KT )for acute attack of chronic asthmatic bronchitis.

3. Objective:To certificate the curative effects of Sanzi Kechuan Capsule in treating chronic bronchitis with syndrome of phlegm-dampness accumulated in the lung, and evaluate objectively its safety.

4. Non-capsule by Lohan: The drug benefit and ease Kechuan sputum role.

5. Objective To explore clinical therapeutic effect of Kechuan Heji on chronic obstructive pulmonary disease (COPD).

6. Conclusion The Yutian Kechuan capsule has certain of antibacterial effects on staphylococcus aureus.

7. To explore the therapeutic efficacy and its effect on the absorption of inflammatory material of Maqin Kechuan mistura in treating Asthma.

8. Objective To study the antitussive, expectorant, and antiasthetic action on pharmacology of Lingxing Kechuan Capsule.