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Chuan Mu Tong (Clematis)

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Cold Chuan Mu Tong (Caulis Clematidis Armandii)
Bitter, Cold, Bland
Caulis Clematidis Armandii
Tone Marks:
chuān mù tōng
Alt Names:
Mu Tong
Open Ended/Pipe Wood from Sichuan


  • Promotes Urination, Drains Damp Heat
    For urinary tract infections with painful dribbling due to damp-heat in the bladder.
  • Clears Heart Heat/Fire, Drains Fire Down
    For sores of the mouth and tongue with irritability and scanty urine due to heat in the Heart which is cleared via the small intestine.
  • Promotes Lactation and Opens the Blood Vessels
    For insufficient lactation, amenorrhea, and stiff painful joints.

Contraindications and Cautions

  • Do not use during pregnancy
  • Do not use in cases with spermatorrhea, Yang deficiency, or Qi deficiency

Herb-Drug Interactions

  • Chuan Mu Tong promotes urination and may interfere with Diuretic drugs.

Toxicity and Overdose

  • No toxicity noted


  • None noted 12 3-6 grams in decoction 13


  • Chuan Mu Tong and Hu Po both drain fire from the Heart Channel and Small Intestine with pain or bloody urine. Both drain fire from the Heart but Chuan Mu Tong is more used for sores on the tongue while Hu Po calms spirit.
  • Mu Tong can be sourced from both caulis akebiae and clematis armandii, but clematis is more common in the United States.

Clinical Studies and Research

  • Antinociceptive and anti-inflammatory effects of the saponin and sapogenins obtained from the stem of Akebia quinata.
    Choi J, Jung HJ, Lee KT, Park HJ. J Med Food. 2005 Spring;8(1):78-85
  • Tinnitus treated with combined traditional Chinese medicine and Western medicine
    Yang DJ. Zhong Xi Yi Jie He Za Zhi. 1989 May;9(5):270-1, 259-60.
  • Toxicity of the Chinese herb mu tong (Aristolochia manshuriensis). What history tells us.
    Zhu YP. Adverse Drug React Toxicol Rev. 2002;21(4):171-7.

This Herb Appears in the Following Formulas: