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a Chinese Formula

Bā Zhèng Sàn (Eight Herb Powder for Rectification)

Previous Formula in CategoryNext Formula in Category Formula 7 of 23 in Formulas that Expel Dampness


  • Formulas that Promote Urination and Leach out Dampness


  • Damp Heat in the Lower Jiao (UB)


  • Clears heat and drains damp in the lower burner
  • Promotes urination.
  • Unlocks painful urination.


  • Burning, painful, dark, bloody, scanty, turbid, and difficult urination
  • Distension, pain, and bloating in the lower abdomen.
  • Dry mouth and throat, thirst, and a bitter taste in the mouth.

Possible Tongue Appearance:

  • Red with a greasy yellow coat

Possible Pulse Patterns:

  • Slippery and Rapid Pulse, possibly Forceful

Western Uses:

  • Acute urinary tract infection
  • Urolithiasis (Bladder Stones)
  • Cystitis
  • Urethritis
  • Acute Prostatitis
  • Urinary tract stones
  • Acute Nephritis
  • Acute Pyelonephritis

Cautions, Contraindications, Herb Drug Interactions:

  • Log term use can cause weakness, palpitations, dizziness, and loss of appetite
  • Use with caution in weak patients or cold from deficiency.
  • Do not use without modification during pregnancy.

Preparation Notes:

  • Decoction.

Originally Appeared In:

  • Imperial Grace Formulary of the Tai Ping Era (Tai Ping Hui Min He Ji Ju Fang)

Combined Channels of all herbs in this formula:

  • Heart, Small Intestine, Bladder, Stomach, Lungs, Kidneys, Liver, Large Intestine, Spleen

Substances in this Formula (9 Total):

Chuan Mu Tong (Caulis Clematidis Armandii)
Chuan Mu Tong (Clematis) 川木通
Qty: 3-6 grams
Chan: BL, HT, SI
Prop: Bitter, Cold, Bland
Latin: Caulis Clematidis Armandii
Cat: Herbs that Regulate Water and Drain Dampness
Hua Shi (Talcum)
Hua Shi (Talcum) 滑石
Qty: 12-30 grams
Chan: ST, BL
Prop: Sweet, Bland, Cold
Latin: Talcum
Cat: Herbs that Regulate Water and Drain Dampness
Che Qian Zi (Semen Plantaginis)
Che Qian Zi (Plantago Seed, Plantain Seed) 车前子
Qty: 9-15 grams
Chan: KI, BL, LIV, LU
Prop: Sweet, Cold
Latin: Semen Plantaginis
Cat: Herbs that Regulate Water and Drain Dampness
Qu Mai (Herba Dianthi)
Qu Mai (Aerial Parts of Fringed Pink or Chinese Pink Dianthus) 瞿麦
Qty: 6-12 grams
Chan: BL, HT, SI
Prop: Bitter, Cold
Latin: Herba Dianthi
Cat: Herbs that Regulate Water and Drain Dampness
Bian Xu (Herba Polygoni Avicularis)
Bian Xu (Knotweed, Polygonum) 扁蓄
Qty: 6-12 grams
Chan: BL
Prop: Bitter, Slightly Cold
Latin: Herba Polygoni Avicularis
Cat: Herbs that Regulate Water and Drain Dampness
Zhi Zi (Fructus Gardeniae Jasminoidis)
Zhi Zi (Gardenia, Cape Jasmine Fruit) 栀子
Qty: 3-9 grams
Chan: HT, LIV, LU, ST, TB
Prop: Bitter, Cold
Latin: Fructus Gardeniae Jasminoidis
Cat: Herbs that Drain Fire
Jiu Da Huang (Wine Treated Radix Et Rhizoma Rhei)
Jiu Da Huang (Wine Treated Rhubarb Root, Rhizome - Raw Herb Shown) 酒大黄
Qty: 6-9 grams
Chan: HT, LI, LIV, ST
Prop: Bitter, Cold
Latin: Wine Treated Radix Et Rhizoma Rhei
Cat: Purgatives
Deng Xin Cao (Medulla Junci Effusi)
Deng Xin Cao (Rush Pith, Juncus) 灯心草
Qty: 3-6 grams
Chan: HT, LU, SI
Prop: Sweet, Bland, Slightly Cold
Latin: Medulla Junci Effusi
Cat: Herbs that Regulate Water and Drain Dampness
Gan Cao (Radix Glycyrrhizae)
Gan Cao (Licorice Root) 甘草
Qty: 3-9 grams
Chan: All 12 (Primarily the LU, HT, SP, ST)
Prop: Sweet, Neutral
Latin: Radix Glycyrrhizae
Cat: Herbs that Tonify Qi
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