Reed Rhizome, Lú Gēn, 芦根, Rhizoma Phragmites Communis

Disclaimer    For educational purposes only.  Do not use as medical advice

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Health Benefits
For: High fever without chills • Intense thirst • Sores
Attributes: CNS suppressant, gastrointestinal (slows down peristalsis), diuretic [18]
Products (online examples)

 

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Research (sample)
Articles:
  • Space: Link 
Constituents: 
Amino acids, fatty acids , sterols, tocopherols, polyphe­ nols, caffeic acid , gentisic acid, dioxane lignin, guaiacyl, syringyl , 4-hydroxyphenyl, 2,5-dimethoxy-p-benzo­ quinone, p-hydroxybenzaldehyde, syringaldehyde, coniferaldehyde, vanillic acid, ferulic acid, p-coumaric acid, coixol, asparagine, arabinose, xylose, glucose [18]

Photos (Click to enlarge)
Fun Facts
Other Names: Phragmites Root
Plant Family:
Pharmacopeias: Ming Yi Za Zhu
Species

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Growth
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Phragmites communis Trin. is not in the USDA Plant Database.  Drill down via USDA Interactive Map:

USA: Phragmites communis Trin. USDA Zones:  

Native: 

Habitats: 

Category: Clear Heat Drain Fire  ▶
English: Reed Rhizome    Pinyin:  Lu Gen      Pharmaceutical: Rhizoma Phragmites Communis   
Organs: lung • Stomach      Temperature: Cold       Taste: Sweet      Toxicity:   
Actions:  clears heat in all 3 Jiaos (LU, ST, BL), generate fluids, promote urination, vent rashes, moisten dryness, regulate Stomach Qi, mild relief food poisoning [18]
Key 2nd Actions: Generate Fluids • Promote Urination • Stop Nausea/Vomit/Hiccup • Vent Rashes
Indications: severe fever without chills, severe thirst, Qi level heat, phlegm heat abscess in the Lung, Lung Heat Dryness, cough with thick and sticky sputum, early stage measles, Re Lin, scanty urine, Stomach heat nausea/vomiting
Contraindications: Spleen and Stomach deficiency cold
Dosage: 15g - 30g          Guidelines
Parts Used:   
Other:
Dui Yao
LU GEN/ BAI MAO GEN: Fever, thirst, and irritability due to Warm-febrile disease or Wind-Heat. Cough/wheezing due to LU Heat. Early-stage of measles due to Toxic-Heat. Acute nephritis, urinary tract infection accompanied by fever, dysuria, or edema. Nausea/vomiting due to ST Heat. Epidemic hemorrhagic fever[35] Great at clearing heat through urination [42]
Formulas with Lu Gen
Sang Ju Yin, Yin Qiao San

Alert
Be cautions with all medicine.

 

Potential Drug Interactions

Herbal medicine may interact negatively with pharma drugs and other herbs.  Examples below:

Herbs:

Pharma Drugs:

[3], [5], [8]

Information in this post came from many sources, including class notes, practitioners, websites, webinars, books, magazines, and editor's personal experience.  While the original source often came from historical Chinese texts,  variations may result from the numerous English translations.   Always consult a doctor prior to using these drugs.  The information here is strictly for educational purposes. 

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