Licorice root, known as Gan Cao, is valued for tonifying Qi, soothing the Lung and throat, easing cough, moderating spasms, and harmonizing the actions of other herbs.
Pinellia ternata, known in Vietnamese as Bán hạ bắc, is used for cough with much phlegm, chest or abdominal fullness, nausea, vomiting, and phlegm-dampness.
Southern Pinellia, also called Bán hạ nam, is used for transforming phlegm, relieving cough with phlegm, directing rebellious qi downward, and supporting nausea.
Lotus Leaf, also known as Hà diệp, is used for clearing heat, relieving summer heat discomfort, draining dampness, and supporting bleeding patterns related to heat in the blood.
Chinese Yam is used to strengthen the Spleen and Stomach, support healthy digestion, help with chronic loose stools, support blood sugar balance and restore the body in cases of weakness.