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The efficacy and function of Polygala Zhi
2026-04-12 10:18:23
Overview of the efficacy and functions of Polygala Zhi
Polygala is a processed product of the dried roots of the polygala plant Polygala. It has the effects of calming the mind and improving intelligence, eliminating phlegm, resuscitating the body, and dissipating carbuncles. It is widely used in clinical TCM. Its main effects include improving insomnia and forgetfulness, relieving cough and phlegm, promoting wound healing, etc. Its secondary effects include anti-anxiety, enhancing memory, etc. The content will focus on its core functions, introducing its pharmacological effects, applicable groups and precautions for use in order to help readers fully understand this traditional Chinese medicinal material.
Calming the mind and improving intelligence: improving sleep and cognitive function

The most significant effect of Zhi Polygala isSoothe the mind and puzzle, especially suitable for symptoms such as insomnia, dreaminess, and forgetfulness caused by heart-kidney disharmony. Modern research shows that its active ingredients (such as polygala saponin) can regulate the central nervous system, relieve anxiety and enhance memory. For example, Chinese medicine often combines polygala root with Ziziphus seeds and Poria cocos to treat neurasthenia or inattention caused by study pressure. It should be noted that patients with long-term insomnia need to be combined with other therapies, and the effect of single use is limited.
Eliminate phlegm and relieve respiratory problems
of polygalaExpectorant and resuscitationIts effect makes it a commonly used medicine to treat coughs with excessive phlegm, chest tightness and shortness of breath. Its saponin component can dilute sputum and promote excretion, which has an auxiliary effect on chronic bronchitis or cough after a cold. In clinical practice, it is often used together with almonds and platycodon to enhance the phlegm-resolving effect. However, it should be noted that it is suitable for those with phlegm-damp constitution, but not for those with yin deficiency and dry cough, so as not to aggravate symptoms.
Dissipate carbuncle: external application promotes wound healing
Polygala root can be used externallyDissipate carbuncle, the traditional usage is to grind it into powder and apply it on the affected area. It has an anti-inflammatory and astringent effect on skin sores or mild burns. Its anti-inflammatory ingredients inhibit bacterial growth and accelerate tissue repair. For example, "Compendium of Materia Medica" records that it "can be used to treat carbuncle on the back, grind it into powder and drink it with wine or apply it externally". However, serious infections still need to be treated with antibiotics and cannot be treated alone.
Summary and Notes
As a multi-effect Chinese herbal medicine, Polygala polygala should be used rationally according to symptoms. It should be taken before going to bed to calm the nerves and improve the mind. It requires syndrome differentiation and compatibility for eliminating phlegm and resuscitating one's orifices. For external use, it is necessary to avoid allergies. Contraindications include pregnant women and those with yin deficiency and excessive fire. Excessive use may cause gastrointestinal discomfort. It is recommended to use it under the guidance of a physician to ensure safety and effectiveness.
| Data source | Quote content |
|---|---|
| "Chinese Pharmacopoeia" 2020 Edition | Polygala processing methods and basic functions |
| "Compendium of Materia Medica" by Li Shizhen | Records of the external treatment of carbuncle with Polygala Polygala |
Sources cited: "Chinese Materia Medica" by the State Administration of Traditional Chinese Medicine, "Traditional Chinese Materia Medica" textbook by Beijing University of Chinese Medicine
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