Dan Dou Chi (Sojae Semen Praeparatum)

Dan Dou Chi (淡豆豉), prepared fermented soybean, gently releases the exterior (for either wind-cold or wind-heat, depending on processing) and relieves the irritability and stifling sensation that can linger after a febrile illness.

Dàn Dòu Chǐ  ·  淡豆豉

Latin / Pharmaceutical Name

Glycine max, prepared (Semen Sojae Praeparatum)

Common English Name

Prepared fermented soybean

Taste

Acrid, sweet, bitter

Temperature

Cool

Channels Entered

Lung, Stomach

Actions & Functions

  • Gently releases the exterior
  • Relieves irritability and a stifling sensation in the chest

Indications

Mild exterior patterns; and irritability, restlessness and insomnia, especially lingering after a febrile disease.

Dosage

6-12 g in decoction.

Common Combinations

With Zhi Zi (Zhi Zi Chi Tang) for irritability and restlessness after febrile disease.

Cautions & Contraindications

Very gentle; generally well tolerated.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

Check Also

PubMed research

Tai Chi Improves Motor Symptoms in Parkinson’s Disease, Though Underlying Mechanisms Remain Preliminary

Research summary (Tai Chi): Tai Chi for improving motor symptoms in Parkinson's disease patients: a systematic review of mechanisms. - Frontiers in aging neuroscience, 2026.