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Bai Jie Zi (White Mustard Seed)

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Warm Bai Jie Zi (Semen Sinapis Albae)
Spicy, Warm
Semen Sinapis Albae
Tone Marks:
bái jiè zĭ
Alt Names:
Huang Jie Zi


  • Warms the Lungs, Expels Phlegm, and Regulates Qi
    For Cold Phlegm Stagnation with symptoms such as cough, thin, profuse, clear or white sputum, wheezing and dyspnea, or neck and upper thorax pain caused by cold phlegm obstruction at the diaphragm.
  • Regulates Qi, Opens the Channels, Dissipates Nodules, and Alleviates Pain
    For Phlegm Cold obstruction in the Channels causing body aches, joint pain, phlegm type masses, scrofula, Yin type Boils, and bed sores.

Contraindications and Cautions

  • Do not use in cases with chronic cough due to Lung Deficiency, in Yin Deficiency with Heat signs, or Stomach Fire.
  • This herb may irritate the skin, cause allergic reactions, or blisters if used topically.
  • This herb may cause diarrhea if taken internally in large amounts.
  • Keep this herb away from the eyes.

Herb-Drug Interactions

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

Toxicity and Overdose

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


  • 3-10 grams


  • Can be used topically

This Herb Appears in the Following Formulas: