What Gui Zhi Ma Huang Ge Ban Tang is for
This formula is for skin that will not settle. Hives or itch drift in and out over days or weeks, never severe, never very hot, and never fully gone. The surface is caught between open and closed, so a mild pathogen lingers and the rash keeps returning. Zhang Zhongjing's answer is proportion: half of the harmonising decoction and half of the opening decoction, so the surface is neither forced open nor sealed shut.
The skin picture is mild and wandering. Crops of pale or pink wheals come and go, the itch moves from one place to another, and the skin between episodes looks almost normal. There is little heat: the lesions are not deep red, not hot to the touch and not weeping. The pattern is persistent rather than dramatic, and it often outlasts the usual course of a simple release. The surface looks unsettled and slightly reactive rather than inflamed.
Gui Zhi, Bai Shao, Sheng Jiang, Da Zao and Gan Cao harmonise the Ying and Wei levels so the surface regulates itself. Ma Huang and Xing Ren open it and descend the Lung Qi, at about half the dose each parent formula would use. The point of the proportions is that neither action dominates: the surface is nudged back into regulation rather than opened hard. That is why it suits a lingering mild rash better than a strong releasing formula would.
It fits urticaria and persistent itch on a mild exterior pattern, where the skin reacts and settles repeatedly and there are no strong heat signs. It is not for marked Wind-Cold, not for hot red eruptions and not for depleted skin. Ma Huang is a restricted herb in many places and interacts with cardiac and blood pressure medication, so this formula needs professional supervision rather than self-treatment.
Actions
- Releases the exterior gently
- Harmonises the Ying and Wei levels
- Settles a lingering surface pattern
- Relieves itch and mild surface symptoms
Properties
- Taste and temperature: Predominantly pungent and sweet. Pungent releases the surface, sweet harmonises the middle and Ying level.
- Organs: Lungs, Spleen, Heart
- Channels: Lung, Spleen, Heart
The pattern behind it
The pattern is a lingering exterior pathogen with the surface neither fully open nor closed. The Ying and Wei levels are not working together, so the pathogen persists and the surface symptoms come and go. The formula uses half doses of both releasing approaches to restore the balance.
Composition
The herbs in Gui Zhi Ma Huang Ge Ban Tang, with their role and dose.
| Role | Herb | Dose | Properties | Why it is there |
|---|---|---|---|---|
| Gui Zhi | 5 to 9 g | Warm, Pungent, sweet | Warms and releases the surface, regulating the Wei Qi. | |
| Deputy | Ma Huang | 3 to 6 g | Warm, Pungent, bitter | Opens the surface more strongly, at about half the usual dose. |
| Bai Shao | 3 to 6 g | Slightly cold, Bitter, sour | Nourishes Ying and astringes, balancing the releasing herbs. | |
| Xing Ren | 3 to 6 g | Slightly warm, Bitter, sweet | Descends the Lung Qi and supports the release. | |
| Sheng Jiang | 3 to 6 g | Slightly warm, Pungent | Warms the middle and helps release the surface. | |
| Envoy | Da Zao | 3 to 4 dates | Warm, Sweet | Nourishes the middle and the Ying level. |
| Gan Cao | 3 to 6 g | Neutral, Sweet | Harmonises the formula and supports the middle. |
Patterns it treats
Wind-Cold
Pale or pink wheals and wandering itch that come and go over weeks, on skin that looks almost normal between episodes and is not hot to the touch. The surface is neither open enough to release the pathogen nor closed enough to keep it out. Half of each releasing approach restores its regulation.
How the formula is built
Half of Gui Zhi Tang for harmonising and half of Ma Huang Tang for opening. The result is a formula that moves the surface without strongly opening or strongly closing it, which is exactly what a lingering mild surface pattern needs.
Skin conditions it is used for
Where this formula appears in the skin conditions of the library.
Preparation and use
Decocted in water and taken warm, in two divided doses.
Modifications
- If the Cold is stronger, the warming side is adjusted.
- If the surface is more open, the releasing side is reduced.
- If Heat appears, cooling herbs are added.
- If the person is depleted, the dose is reduced.
Timing
Taken warm in two divided doses.
Duration
Short course: three to seven days, reassessed.
Diet while taking it
Warm light food and warm fluids; avoid cold raw food.
Safety
Contraindications
Avoid in Heat patterns and in depleted patients. Ma Huang makes this a formula that requires professional supervision and it is not suitable for anyone with cardiac or blood-pressure conditions without advice.
Interactions
Ma Huang interacts with cardiac and blood-pressure medication and stimulants, so coordination with a prescriber is essential.
Pregnancy
Use only under professional guidance because Ma Huang is a strong opening herb.
Breastfeeding
Use only under professional guidance.
Children
Used only with professional supervision.
Before you use it
Recorded from the classical record and rewritten in this project's own words. Educational only: not a prescription. Ma Huang is a restricted herb in many places, and this formula requires a practitioner.
General safety references
General references for herbal hepatotoxicity and herb-drug interactions; they are not specific to this formula.
- Review article: Herbal hepatotoxicity - an update on traditional Chinese medicine preparations. Alimentary Pharmacology & Therapeutics, 2014. PMID: 24844799.
- Interactions between herbal medicines and prescribed drugs: an updated systematic review. Drugs, 2009. PMID: 19719333.
- Warfarin and food, herbal or dietary supplement interactions: a systematic review. British Journal of Clinical Pharmacology, 2021. PMID: 32478963.
Origin and history
Shang Han Lun (伤寒论, Treatise on Cold Damage) by Zhang Zhongjing, Eastern Han dynasty, around 220 CE.
Zhang Zhongjing described a patient whose exterior pattern had not resolved and whose surface was neither open nor closed, and he answered it with half of each formula. That proportional thinking is one of the clearest examples of how the classical formulas were built.
Classical record
The Treatise on Cold Damage records the formula for a mild exterior pattern that has not resolved, combining half of the harmonising decoction with half of the opening decoction.
Shang Han Lun (伤寒论, Treatise on Cold Damage), Zhang Zhongjing, Eastern Han dynasty.
Evidence note
No controlled trial of this treatment in skin conditions was identified for this entry. What is described here rests on the classical and later materia medica record and on traditional clinical use, not on controlled trial evidence, and it is not a prediction of benefit. Where skin-specific research does exist it is linked above.
Common questions
What does the name mean?
Half of Gui Zhi Tang and half of Ma Huang Tang. The proportions are the formula.
Can it help chronic hives?
Where the pattern is mild and lingering with a floating pulse and no strong heat. Other patterns need other formulas.
Is Ma Huang safe?
It interacts with cardiac and blood-pressure medication and is restricted in many places, so professional guidance is essential.
How long is it used?
Three to seven days, reassessed.