Shi Wei (Pyrrosia Leaves)

Herb 22 of 28 in Herbs that Regulate Water and Drain Dampness

Channels:

BL, LU

Properties:

Bitter, Sweet, Slightly Cold

Latin:

Herba Pyrrosiae

Chinese:

石苇

Tone Marks:

shí wĕi

Translation:

Stone Reed

Chinese Herb Actions

• Clears Damp-Heat, Promotes Urination, Reduces Edema
  For burning, painful urination with or without stones, blood or dribbling due to damp-heat. Also for reducing edema.
• Stops Bleeding
  For trauma, hematemesis, epistaxis, hypermenorrhea, and bloody urine.
• Stops Cough, Expels Phlegm, and Clears the Lungs
  For cough and wheezing due to Lung heat with phlegm

Chinese Herb Contraindications & Cautions

• None Noted

Herb-Drug Interactions

• None Noted

Chinese Herb Toxicity & Overdose

• None Noted
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Chinese Herb Dosage

• 5-10 grams and 15-30 grams in severe cases in decoction ¹²
• 6-9 grams in decoction ¹³

Chinese Herb Notes

• This herb goes to the Lungs and Bladder allowing it to clear damp and heat from the upper and lower parts of the body.

Chinese Herb Clinical Studies & Research

• Chemical constituents of Pyrrosia petiolosa.
  Yang C, Shi JG, Mo SY, Yang YC. - J Asian Nat Prod Res. 2003 Jun;5(2):143-50.
• Zhao YH. Related Articles, Analysis of the therapeutic effect of 1,148 cases of bacillary dysentery treated with Pyrrosia sheareri.
  Zhong Xi Yi Jie He Za Zhi. 1985 Sep;5(9):530-3, 514. Chinese.
• Zheng M. Related Articles, Experimental study of 472 herbs with antiviral action against the herpes simplex virus.
  Zhong Xi Yi Jie He Za Zhi. 1990 Jan;10(1):39-41, 6. Chinese.
• When Shi Wei was combined in an herbal formula it reduced sputum in 56% of cases with chronic tracheitis.
  Shang Hai Ren Min Chu Ban She, 1973.