Classic formula · Dispel dampness
Ba Zheng San
八正散 Eight-Herb Powder for Rectification
The bladder formula. For burning, urgent, painful, frequent urination with dark cloudy urine, a dry mouth, and a full lower belly: damp heat in the bladder. Eight herbs that cool the heat and flush it out through the urine. Short, sharp, and for the acute picture.
A hot, blocked drain. The formula cools the pipe and runs water through it until it is clear.
Also sold as: Ba Zheng Wan · Dianthus Formula
Who Ba Zheng San is for
This formula is chosen for one pattern. Match your own picture before you match the name.
Signs it is classically given for
- Burning, painful urination
- Urgency and frequency with little urine each time
- Dark, cloudy, or bloody urine
- Full, tender lower belly
- Dry mouth and throat with the above
- Stones with burning urine, when prescribed
- Tongue
- Red with a yellow greasy coat.
- Pulse
- Slippery and rapid.
What is in Ba Zheng San
Amounts are the classic decoction range in grams. Patent pills use the same herbs in the same proportion, so read the box for these names.
| Herb | Amount | Role | Job in the formula |
|---|---|---|---|
| Che Qian Zi Asiatic Plantain Seed Use caution | 9 g | Chief | Plantain seed clears heat and drains it through the urine. |
| Qu Mai Lilac Pink Herb | 9 g | Chief | Dianthus clears damp heat from the bladder and eases painful urination. |
| Bian Xu All-Grass Of Common Knotgrass Use caution | 9 g | Chief | Knotweed clears damp heat and promotes urination. |
| Hua Shi Talc Use caution | 12 g | Deputy | Talc clears heat and smooths the way out. |
| Zhi Zi Gardenia Fruit | 9 g | Deputy | Gardenia clears heat from all three burners. |
| Mu Tong Akebia, Clematis Stem High caution | 6 g | Assistant | Clematis stem opens the water passages. See the caution on which mu tong. |
| Da Huang Raw Rhubarb Root Use caution | 6 g | Assistant | Rhubarb drains heat through the bowel. |
| Zhi Gan Cao Honey-Fried Licorice Root Use caution | 6 g | Envoy | Licorice eases pain and harmonizes. |
How Ba Zheng San works
Five herbs aim at the bladder, each cooling and draining in a slightly different way. Gardenia and rhubarb take the heat out through the urine and the bowel. Licorice keeps the harsh crew from hurting. It is a flush, not a tonic, and it should stop as soon as the burning does.
Actions in classic terms
- Clears heat and drains fire
- Promotes urination and unblocks painful urinary dribbling
Common changes to Ba Zheng San
A practitioner rarely gives the bare formula. These are the classic additions for a specific picture.
- Blood in the urine add Xiao Ji, Bai Mao Gen Cooling herbs that stop bleeding.
- Stones add Jin Qian Cao, Hai Jin Sha Stone-dissolving herbs.
Cautions with Ba Zheng San
- Cold and draining. Days, not weeks. Long use harms the Spleen and the fluids.
- Mu tong: insist on a brand that uses Chuan Mu Tong (clematis) or Tong Cao, never Guan Mu Tong (aristolochia), which damages the kidneys and is banned.
- Not for a weak, cold person or chronic urinary frequency without heat; that is a deficiency picture.
- A bladder infection with fever, back pain, or blood needs urgent attention alongside anything else.
- Not for use in pregnancy.
Forms and typical dose
Sold as teapills, granules, decoction.
- Teapills
- 8 pills, three times a day, the usual label dose
- Course
- Three to seven days.
Follow the label of the brand you buy. Pill sizes differ between makers.
Buying Ba Zheng San
The box reads Ba Zheng San or Wan with the characters 八正. Eight ingredients including Dianthus, Knotweed, Talc, and Plantain seed. The label must state Chuan Mu Tong or Tong Cao, never Guan Mu Tong.
Brand comparisons for formulas live on Supplements Apothecary, the buying side of this library.
Brand choice matters because of the mu tong substitution.
Formulas often confused with Ba Zheng San
- Long Dan Xie Gan Tang 龙胆泻肝汤 Damp heat in the Liver channel: adds genital itch, a bitter mouth, and irritability above the bladder.
- Dao Chi San 导赤散 Heart heat passed to the bladder: mouth ulcers and burning urine together, gentler.
Conditions where Ba Zheng San comes up
Sources
- Bensky, Scheid, Ellis and Barolet, Chinese Herbal Medicine: Formulas and Strategies, 2nd edition Composition, actions, indications, cautions, and the mu tong note.
Important Note
Formula pages describe classic use so you can read a label, ask a better question, and find the right monographs. They are education, not a prescription. A formula that fits the wrong pattern can make things worse, so match the picture first.