The efficacy of Dingchuan decoction can act to ventilate and lower lung qi, and also has the effects of clearing heat and resolving phlegm. The composition of Dingchuan decoction usually includes Bai Guo, Mahuang, Suizi, and Gancao, among others. After taking the medicine, it can effectively treat chronic obstructive pneumonia.

Dingchuan decoction can act to ventilate and lower lung qi. It contains various herbal ingredients, among which the Suizi can lower lung qi and relieve asthma, and also has the effects of expectorant and lowering blood fat. After taking the medicine, it can help to moisten the intestines and relieve constipation, as well as have antibacterial effects. Gancao can relieve cough and also has expectorant effects, effectively improving respiratory infections and is a traditional Chinese medicine. Bai Guo itself can act as an expectorant and relieve cough, and also has the effects of beautifying the skin and calming the mind. Mahuang is also a common traditional Chinese medicine that can act to relieve asthma and edema, and through these herbal ingredients in the Dingchuan decoction, after taking it, it can act to ventilate and lower lung qi and also has the effects of clearing heat and resolving phlegm, effectively treating chronic obstructive pulmonary disease.

During the medication period, it is recommended to drink more water or eat fresh fruits and vegetables, which can replenish body fluids and also act as a throat lubricant. It is not advisable to consume spicy or fried foods.