Radix Panacis Quinquefolii
- Name
- Origin
- Where Does It Grow?
- Nature and Flavor
- Identified Active Components / Major Chemical Constituents
- Drug Actions in TCM
- Traditional Uses in TCM
- Pharmacological Actions
- Toxicology
- Administration and Dosage
- Adverse Effect, Side Effects and Cautions
- References
Name
Latin Name: Radix Panacis Quinquefolii
Common Name: American ginseng / North American ginseng
Scientific Name: Panax quinquefolius L.
Chinese Name: 西洋參 / 花旗參
Pinyin Name: xi yang shen
Origin
The dried root of Panax quinquefolium L.; family Araliaceae.1
Where Does It Grow?
Wild American ginseng grows in United States and Canada. Nowadays, the herb is mainly cultivated and produced in United States, China, Canada and France.1
Nature and Flavor
American ginseng is sweat and slightly bitter in flavors, cool in nature, and mainly manifests its therapeutic actions in the heart, lung and kidney meridians.2
Identified Active Components / Major Chemical Constituents
Major chemical constituents in American ginseng are ginsenosides such as pseudoginsenoside F11, ginsenosides Rb1-Rb3, Rc-Rf, Rg1-Rg3, Rg8, Rh1, RA0, R0, F1-F4, quinquenosides I-V. It also contains organic acids, polysaccharides, amino acids, volatile compounds and trace elements. The variety and contents of ginsenosides in American ginseng are lower than Asian ginseng.1,2,3 Drug Actions in TCM
American ginseng replenishes qi (vital energy), nourishes yin, clears heat and promotes body fluids production.2Traditional Uses in TCM
- For chronic conditions accompanied with low fever, mouth dryness, irritability and fatigue, American ginseng can be used with rehmannia root and dendrobium.
- For breathing difficulties due to yin deficiency, the herb can be used with anemarrhena rhizome and unibract fritillary bulb.
Pharmacological Actions
In vitro studies
Animal test
4. Immunomodulatory Activities
5. Effects on Colds
6. Anti-tumor effects
Toxicology
There was no toxic symptom or decrease in hepatic and renal functions in rats administered heat-processed American ginseng.12
Administration and Dosage
The usual dose of American ginseng is 3~6g each time for decoction or powder.2
Adverse Effect, Side Effects and Cautions
Individuals with high fever or loose bowels are not indicated for American ginseng.2
References
- Zhao Zhongzhen & Xiao Peigen (editor-in-chief), Contemporary Medicinal Herbal Glossary, Hong Kong Jockey Club Institute of Chinese Medicine, 2006-8.
- Chen Pian, Clinical Application of Tonifying Herbs, Second Military Medical University Press, 2008-8.
- Joe Hing Kwok Chu. Complementary and Alternative Healing University: American Ginseng. Retrieved from the World Wide Web: http://thedao.com/xi_yang_shen.htm
- Wu Z, et al. American ginseng modulates pancreatic beta cell activities. Chin Med; 2: 11.
- Luo JZ, et al. Ginseng on hyperglycemia: effects and mechanisms. Evid Based Complement Alternat Med.
- Kitts DD, et al. Antioxidant properties of a North American ginseng extract. Mol Cell Biochem; 203(1-2): 1-10.
- Li J, et al. An essential role of Nrf2 in American ginseng-mediated anti-oxidative actions in cardiomyocytes. J Ethnopharmacol.
- Sui DY, et al. Protective effect of Panax quinquefolium 20s-proto-panaxdiolsaponins on acute myocardial infarction in dogs. Zhongguo Zhong Yao Za Zhi. 2001; 26(6): 416-9.
- 李岩, 等. 西洋參根粗多糖對免疫功能低下小鼠免疫功能的影響. 白求恩醫科大學學報, 1996; 22(2): 173.
- Predy GN, et al. Efficacy of an extract of North American ginseng containing poly-furanosyl-pyranosyl-saccharides for preventing upper respiratory tract infections: a randomized controlled trial. CMAJ.173.9 (2005): 1043-1048.
- Duda RB, et al. American ginseng transcriptionally activates p21 mRNA in breast cancer cell lines. J Korean Med Sci 2001; 16(suppl): S54–S60.
- Kang KS, et al. Increase in the free radical scavenging activities of American ginseng by heat processing and its safety evaluation. J Ethnopharmacol; 113(2): 225-232.
- Lui Daiquan (editor-in-chief), Chinese Herbal Medicine, Shanghai Scientific and Technical Publishers, 2000-6.