1 San'ao Tang: ephedra, almonds, licorice. Efficacy: dispersing cold and promoting the lung. Indications: external wind-cold, nasal congestion, heavy body, bad wind, coughing and chest tightness.
2 Er Chen Tang: Semixia, Chen Pi, Poria, Licorice. Effects: Drying dampness and expelling phlegm, regulating Qi and harmonizing the middle. Indications: damp phlegm cough, phlegm is white, easy to pucker, chest and diaphragm stuffiness, nausea and vomiting, body fatigue or headache and palpitations, moss white and moist, smooth pulse.
3 Su Zi Descending Qi Soup: Su Zi, Semixia, Angelica Sinensis, Licorice, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Polygoni Multiflori, Cinnamon. Effects: Reducing Qi, calming asthma, expelling phlegm and relieving cough. Indications: Solid asthma. Excessive phlegm and saliva, shortness of breath, chest and diaphragm fullness. Tongue coating white or white greasy.
4 The formulators add their own drugs: incense: to strengthen the function of lowering the gas and asthma. Dry ginger: to strengthen the power of dispersal of cold in the lungs. Jujubes: sweet and moderate, reduce the side effects of the drugs harshly injuring the body.
Comprehensive analysis: This formula is a compound formula composed of San'ao Tang, Er Chen Tang and Su Zi Descending Qi Tang, plus Shen Xiang, Gan Jiang and Da Zao. Its main effect is to warm the lung and disperse cold, dispel phlegm and stop cough, lowering the qi and calming the asthma in one prescription. It is suitable for coughing and wheezing caused by external attack of wind-cold or cold-phlegm obstruction of the lungs, with chest tightness and excessive phlegm. It can be used for acute and chronic bronchitis, bronchial asthma and other cough and wheezing-based, and in line with the cold phlegm obstructing the lungs of the disease.