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Mu Dan Pi (Cortex of the Peony Tree Root)

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Cool Mu Dan Pi (Cortex Radicis Moutan)
Spicy, Bitter, Cool
Cortex Radicis Moutan
Tone Marks:
mŭ dān pí


  • Clears Heat and Cools the Blood
    For heat in the Blood causing nose bleed, vomiting with Blood, Bloody phlegm, subcutaneous bleeding, and heavy menstruation.
  • Clears Fire from Yin Deficiency
    For Yin deficiency symptoms, especially without sweating.
  • Invigorates the Blood and Removes Stagnation
    For abdominal tumors, bruises, lumps, and amenorrhea or dysmenorrhea.
  • Calms Liver Fire
    For headache, rib pain, or eye pain.
  • Reduces Swellings
    Used topically to drain pus and reduce firm sores. Used internally for intestinal abscesses.

Contraindications and Cautions

  • Contraindicated in pregnancy, Yin deficiency with excessive sweating, and diarrhea. Some traditional sources say this herb is not to be used with Bulbus Fritillariae (bei mu), Semen Cuscutae Chinensis (tu si zi), Radix et Rhizoma Rhei (da huang), and is not to be taken when using garlic.

Herb-Drug Interactions

  • This section is being researched, and is not completed.

Toxicity and Overdose

  • This section is being researched, and is not completed.


  • 6-12 grams.
  • Part used: root-bark.


  • Used raw to more effectively cool the blood, charred to stop bleeding, and dry-fried to remove stasis.

This Herb Appears in the Following Formulas: