Herb Warm herbs that transform Phlegm and stop Cough

Ban Xia

Crow-dipper rhizomes | 半夏

Pinellia ternata

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TCM Properties

Temperature

Warm

Taste

Pungent

Organ Affinity

Lungs, Spleen, Stomach

Parts Used

Dried rhizome and tuber

TCM Actions & Uses

Traditional Chinese Medicine properties and applications of Ban Xia

Traditional Actions

Dry Dampness
Transform Phlegm
Descend Rebellious Qi
Stop vomiting
Dispel nodules and lumps
Reduce fullness

Key TCM Concepts

In Traditional Chinese Medicine (TCM), Ban Xia 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 Ban Xia is Warm in nature. This means that Ban Xia tends to help people who have too much 'Cold' in their body, although with less effect than a plant that would be Hot in nature. Balance between Yin and Yang is a key health concept in TCM. Those who have too much Cold in their body are said to either have a Yin Excess (because Yin is Cold in nature) or a Yang Deficiency (Yang is Hot in Nature). Depending on your condition Ban Xia can help restore a harmonious balance between Yin and Yang.

 

Ban Xia also tastes 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. Pungent ingredients like Ban Xia tends 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 Ban Xia is thought to target the Lung, the Spleen and the Stomach. 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 Spleen on the other hand assists with digestion, Blood coagulation and Fluids metabolism in the body. The Stomach is responsible for receiving and ripening ingested food and fluids. It is also tasked with descending the digested elements downwards to the Small Intestine.

Common Applications

Research Studies

Scientific research and clinical studies on Ban Xia

The herbal medicine TJ-109 (consisting of Pinellia tuber) effectively reduced the incidence of acute tonsillitis. 1

Tracheitis Plaster (consisting of Pinellia tuber) is a highly effective transcutaneous absorbent with promising long-term effect and could regulate the immune function.2

Sources:

1. 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.

2. Huo GR, Ma LQ, Huang CH. (2001). Clinical study on treatment of chronic bronchitis by tracheitis plaster. Zhongguo Zhong Xi Yi Jie He Za Zhi, 21(11):816-8.

Preparation & Dosage

Traditional and modern methods for preparing Ban Xia

Traditional Preparation

Because the raw unprocessed herb is toxic, it is most often given in its processed form which is fried with Ginger juice.

Recommended Dosage

Note: The following information is provided for educational purposes only and is not meant to replace professional medical advice.

3 - 12 grams

Safety & Contraindications

Important safety information and precautions for Ban Xia

This information is for educational purposes only. Always consult with a qualified healthcare provider before using any herb or supplement.

Herb-Drug Interactions

Like many herbs, Ban Xia may interact with certain medications. If you are taking any prescription medications, we recommend consulting with a healthcare provider knowledgeable in herb-drug interactions.

Related Educational Resources

Formulas Containing Ban Xia

Discover traditional and modern TCM formulas that use Ban Xia as an ingredient to understand its clinical applications.

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