Herb Herbs that clear Heat and dry Dampness

Bai Wei

Swallow-wort roots | 白薇

Cynanchum atratum or Cynanchum versicolor

TCM Properties

Temperature

Cold

Taste

Bitter, Salty

Organ Affinity

Kidneys, Liver, Stomach

Parts Used

Dried root and rhizome

TCM Actions & Uses

Traditional Chinese Medicine properties and applications of Bai Wei

Traditional Actions

Clear Empty Heat
Cool the Blood
Promote urination
Unblocks painful urination
Detoxify and relieve painful obstruction syndrome

Key TCM Concepts

In Traditional Chinese Medicine (TCM), Bai Wei belongs to the 'Herbs that clear Heat and dry Dampness' category. Herbs in this category are used to clear inflammatory and infectious conditions, referred to as 'Internal Heat' in TCM. This is why most of the herbs in this category will have both antibacterial and antiviral properties. In TCM one has too much 'Internal Heat' in their body as a result of a deficiency of 'Yin' (which is Cold in nature, see our explanation on Yin and Yang) or, more commonly, an Excess of Yang (Hot in nature). Herbs that clear Heat and dry Dampness treat the latter while, at the same time, relieving the body of excess Dampness. As such they tend to be Cold or Neutral in nature.

 

As suggested by its category Bai Wei is Cold in nature. This means that Bai Wei typically helps people who have too much 'Heat' in their body. Balance between Yin and Yang is a key health concept in TCM. Those who have too much Heat in their body are said to either have a Yang Excess (because Yang is Hot in nature) or a Yin deficiency (Yin is Cold in Nature). Depending on your condition Bai Wei can help restore a harmonious balance between Yin and Yang.

 

Bai Wei also tastes Bitter and Salty. 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 Bai Wei 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 Salty ingredients tend to have a draining effect in the body because they clear accumulations, remove Phlegm and soften hard lumps.

 

The tastes of ingredients in TCM also determine what Organs and Meridians they target. As such Bai Wei is thought to target the Kidney, the Liver and the Stomach. According to TCM, the Kidneys do not only regulate the urinary system but also play a key role in the reproductive system and the growth and aging process of the body. The Liver on the other hand is often referred as the body's "general" because it is in charge of regulating the movements of Qi and the Body Fluids. It also takes a leading role in balancing our emotions. 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

fever Strangury Carbuncles Sores Urinary tract infection Sore throat Hematuria Snake bites

Research Studies

Scientific research and clinical studies on Bai Wei

The extract of blackend swallowwort root can up-regulate the expression of vascular endothelial growth factor –C (VEGF-C), VEGF-A and lymphatic vessel endothelial HA receptor-1, to promote liver angiogenesis of mice with partial hepatectomy.1

Sources:

1. Meng F. (2015) The extract of blackend swallowwort root up-regulates the expressions of angiogenesis related proteins and promotes liver angiogenesis of mice with partial hepatectomy. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 31(4): 478-83

Preparation & Dosage

Traditional and modern methods for preparing Bai Wei

Traditional Preparation

Remove impurities, wash, cut into sections and dry.

Recommended Dosage

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

3 - 9 grams

Safety & Contraindications

Important safety information and precautions for Bai Wei

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, Bai Wei 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

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