Pharmaceutical Latin: Rhizoma Phragmitis
Common English: Reed Rhizome
Herbs that Clear Heat and Drain Fire: Herbs that Clear Heat in the Qi Stage
Taste Temperature Entering Meridians Dosage
For promoting rashes: up to 60g
Tincture: 2-5ml
Actions Indications/Syndromes

Clears Heat and irritability from the Lungs and Stomach and generates fluids

Internal Heat patterns with high fever, irritability and thirst, dry mouth and throat.

Lung Heat (especially when acute) , Lung carbuncle, Lung abscess

Clears Stomach Heat, regulates Stomach Qi, relieves thirst and stops vomiting

Stomach Heat (especially when accompanied by rebellious Qi)

Clears Heat and promotes urination

Dark, scanty urine and hematuria especially when accompanied by irritability and thirst

Vents rashes Wind-Heat rashes that are not completely expressed
Relieves food poisoning

Relieves food poisoning due to ingestion of fish and crabs

Alcohol poisoning

  • Use caution for those with Spleen and Stomach Deficiency Cold.
  • Contraindicated for those with distention due to Cold sudden turmoil disorder.
  • Contraindicated for those with vomiting due Cold upset Stomach.

Rx. Trichosanthis
Tian Hua Fen
Rx. Ophiopogonis
Mai Men Dong

Flos Chrysanthemi
Ju Hua
Flos Lonicerae
Jin Yin Hua
Hb. Menthae Haplocalycis
Bo He

Caul. Bambusae in Taeniam
Zhu Ru
Fol. Eriobotryae
Pa Ye
(Rz. Zingiberis Recens)
(Sheng Jiang)

Injury to fluids from febrile disease with irritability, thirst and Dryness.

Wind-Heat Attacking the Lungs with cough and thirst.

Irritability, thirst, nausea and vomiting due to Stomach Fire.

Sm. Coicis
Yi Yi Ren
Sm. Benincasae
Dong Gua Zi

Shi Gao


Shi Gao
Rx. Trichosanthis
Tian Hua Fen

Lung abscesses with with purulent sputum striped with fetid blood.

Dry mouth, severe bad breath, and toothache due to Stomach Fire.

Fever, thirst and irritability.

Flos Lonicerae
Jin Yin Hua
Rx. Houttuyniae
Yu Xing Cao
Sm. Benincasae
Dong Gua Ren
(Sm. Coicis)

(Yi Yi Ren)

Rz. Imperatae
Bai Mao Gen

Shi Gao
Rz. Anemarrhenae
Zhi Mu

Lung Heat with cough, thick yellow sputum or lung abscess.

Warm febrile disease with thirst and irritability. (can be used as a stand-alone pair or as the basis of a small prescription)

Internal Heat with high fever.

Thirst and perspiration.

Fr. Gardeniae
Zhi Zi

Rx. Platycodi
Jie Geng
Sm. Armeniacae
Xing Ren
Fol. Mori
Sang Ye

Rx. Platycodi
Jie Geng
Hb. Menthae Haplocalycis
Bo He

Fol. Perillae
Zi Su Ye


Cough and thirst due to Lung Heat.

Bronchitis with chest pain, congestion, no sweat, aversion to Cold and fever.

Rx. Bupleuri
Chai Hu
Hb. Artemisiae Annuae
Qing Hao

Rz. Imperatae
Bai Mao Gen

Rz. Bletillae
Bai Ji

Sm. Coicis
Yi Yi Ren
Sm. Trichosanthis
Gua Lou Ren
Rx. Platycodi
Jie Geng

Alternating chills and fever, chest congestion and pain.

Blood-streaked sputum.

Lung abscess at the pus-forming stage with, chest congestion, pain, cough, fever, and copious, bloody, foul-smelling sputum.

Rx. Adenophorae/Glehniae
Sha Shen
Rx. Trichosanthis
Tian Hua Fen
Rx. Astragali
Huang Qi



Lung abscess during the suppuration stage.



  1. This herb treats Phlegm-Heat in the Lung and Bladder Damp-Heat equally well.
  2. It is especially good for hematuria, scanty urination and dangerous spiking fevers.
  3. Both Lu Gen and Rz. Imperatae Bai Mao Gen clear Heat, generate fluids and promote urination. Lu Gen focuses on the Lungs and Stomach and excels at clearing Qi level Heat. It cools the Lungs, drains the Stomach, guides out Phlegm-Heat and vents and disseminates external pathogens. It treats cough from Lung Heat externally contracted disorders and failure of measles to ex press. Bai Mao Gen is better for clearing Blood level Heat and cooling the Blood to stop bleeding. It focuses on the Heart, Lungs Stomach and Bladder and guides Heart Fire out through the urine. It treats epistaxis, hemoptysis, hematuria and jaundice due to Damp-Heat. The herbs are very close to each other and can substitute for each other if necessary.
  4. Fresh Reed Rhizome Xian Lu Gen is cool,sweet and very juicy. It is more potent than Dried Reed Rhizome for cooling Heat and generating fluids. It is used any time Heat from a warm pathogen disease causes Wei Level or Qi level disorders, or for any residual pathogenic influence remaining from a febrile disease as long as there is thirst from injury to Yin. Increase the dosage by a factor of three to five.
  5. Succus Phragmitis Rhizomatis (Fresh Reed Rhizome Juice) Xian Lu Gen Zhi has strong Yin-nourishing and Fluid-restoring properties and is good for febrile disorders with restless thirst and Stomach Heat with nausea and vomiting where decoctions are rejected.
  6. Reed Stalk Wei Jing enters the Heart and lungs to treat upper Jiao Deficiency Heat.