Materia Medica - Important
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Pharmaceutical Name
Rhizoma Phragmitis
Botanical Name
Phragmites communis Trin.
Common Name
Phragmites, Reed root
Source of Earliest Record
Mingyi Bielu
Part Used & Method for Pharmaceutical Preparations
The rhizomes are dug at the end of spring, in the beginning of summer or in autumn. After the fibrous roots have been removed, the skin is peeled off and cleaned and dried in the sun.
Properties & Taste
Sweet and cold
Functions
1. To clear heat and relieve irritability; 2. To promote the production of body fluids and relieve thirst; 3. To stop vomiting
Meridians
Lung and stomach
Indications & Combinations
1. Febrile diseases manifested as thirst, irritability and fever. Reed root (Lugen) is used with Gypsum (Shigao), Ophiopogon root (Maidong) and Trichosanthes root (Tianhuafen).
2. Heat in the stomach with vomiting and belching. Reed root (Lugen) is used with the juice of Fresh ginger (Shengjiang), Bamboo shavings (Zhuru) and Loquat leaf (Pipaye).
3. Heat in the lungs manifested as cough, expectoration of thick, yellow sputum and pulmonary abscess. Reed root (Lugen) is used with Honeysuckle flower (Jinyinhua), Houttuynia (Yuxingcao) and Benincasa seed (Dongguaren).
Dosage
15-30 g
Cautions & Contraindications
This herb should be used with caution in cases with cold and deficient spleen and stomach.
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