Please note that you should never self-prescribe TCM ingredients. A TCM ingredient is almost never eaten on its own but as part of a formula containing several ingredients that act together. Please consult a professional TCM practitioner, they will be best able to guide you.
Preparation: Dig out the root in the spring or autumn seasons, wash it, remove the fibrous elements, peel the skin and dry it. Remove impurities, wash again, soak in water, cut in thick pieces and dry.
Main actions according to TCM*: Opens the Lungs and smoothes the flow of Lung Qi. Expels Phlegm and pus from the Lungs and throat, can be used for either Wind-Cold or Wind-Heat according to the other herbs in the formula. Directs the actions of other herbs to the Upper Warmer.
Contraindications*: This herb should not be used if there is blood in the expectoration and so is often not appropriate for tuberculosis.
Source date: 1798 AD
Number of ingredients: 11 herbs
Formula key actions: Clears Dry-Cold. Disseminates the Lung Qi and relieves cough. Transforms thin mucus.
Jie Geng is a deputy ingredient in Xing Su San. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.
Source date: 1798 AD
Number of ingredients: 10 herbs
Formula key actions: Disperses Wind Heat. Clears Heat. Resolves Toxicity.
Jie Geng is a deputy ingredient in Yin Qiao San. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.
In Yin Qiao San, Jie Geng spreads the Lung Qi and improves the throat. Also, Liquorice and Platycoden together are very strong in treating sore throat.
Source date: 1798 AD
Number of ingredients: 8 herbs
Formula key actions: Disperses Wind. Stops coughing by invigorating Lung Qi. Clears Heat.
Jie Geng is a deputy ingredient in Sang Ju Yin. This means it helps the king ingredient(s) treat the main pattern or it serves to treat a coexisting pattern.
In Sang Ju Yin, Jie Geng helps the two key herbs in invigorating the Lung Qi and stopping coughing by directing the Qi upwards.
In Traditional Chinese Medicine (TCM), Jie Geng belongs to the 'Warm herbs that transform Phlegm and stop Cough' category. In TCM Phlegm is a condition of Stagnation of Fluids which tends to start in the Spleen and then goes to the Lungs. If this overly accumulates it thickens and becomes pathological Phlegm. Phlegm, being a form of Stagnation, often starts as being Cool and transforms to Hot as the condition progresses. The herbs in this category are Warm in nature so they treat the early stages of the Stagnation: Cold-Phlegm and Wet-Phlegm with symptoms of wheezing, vomiting and nausea.
As suggested by its category Jie Geng is Neutral in nature. This means that Jie Geng typically doesn't affect the balance in your body. Balance between Yin and Yang is a key health concept in TCM. Eating too many "Hot" (Yang) ingredients can lead to an imbalance whereby one has a Yang Excess. The inverse is true as well: too many "Cold" (Yin) ingredients can lead to a Yin Excess. The Neutral nature of Jie Geng means that you don't have to worry about that!
Jie Geng also tastes Bitter and Pungent. The so-called 'Five Phases' theory in Chinese Medicine states that the taste of TCM ingredients is a key determinant of their action in the body. Bitter ingredients like Jie Geng tends to have a cleansing action on the body by clearing Heat, drying Dampness and promoting elimination via urination or bowel movements. On the other hand Pungent ingredients tend to promote the circulations of Qi and Body Fluids. That's why for instance someone tends to sweat a lot when they eat spicy/pungent food.
The tastes of ingredients in TCM also determine what Organs and Meridians they target. As such Jie Geng is thought to target the Lung. In addition to performing respiration, the Lungs are thought in TCM to be a key part of the production chain for Qi and the Body Fluids that nourish the body.
The extracts and purified platycoside compounds (saponins) from the roots of Platycodon grandiflorum may exhibit neuroprotective, antimicrobial, anti-inflammatory, anti-cancer, anti-allergy, improved insulin resistance, and cholesterol-lowering properties.1.
Herbal medicine consisting of Platycodon Root effectively reduces the incidence of acute tonsillitis.2.
1. Nyakudya E.; Jeong JH.; Lee NK.; Jeong YS. (2014) “Platycosides from the Roots of Platycodon grandiflorum and Their Health Benefits.” Preventative Nutrition and Food Science 19 (2): 59-68. PMID 25054103
2. Goto F, Asama Y, Ogawa K. (2010). Sho-saiko-to-ka-kikyo-sekko as an alternative treatment for chronic tonsillitis to avoid surgery. Complement Ther Clin Pract. , 16(4):216-8. doi: 10.1016/j.ctcp.2010.02.006. Epub 2010 Mar 19.
Jie Geng is also eaten as food. It is used as an ingredient in dishes such as Doraji-muchim or Sauteed bellflower root.