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Cura x Cura

Da Yuan Yin达原饮

Reach the Membrane Source Drink

Harmonizing 和解剂Harmonize Shaoyang 和解少阳

Ingredients7 herbs

槟Bing Lang槟榔6g君 ChiefBreaks through the membrane source and drives out the hidden pathogen厚Hou Po厚朴3g臣 DeputyDries damp and unblocks the oppressed chest and epigastrium
草Cao Guo草果仁1.5g臣 DeputyWarm, aromatic and strongly penetrating — scatters turbid damp lodged deep
知Zhi Mu知母3g佐 AssistantClears heat and moistens dryness caused by the acrid herbs
芍Bai Shao芍药3g佐 AssistantPreserves the blood and yin so dispersing does not consume them
黄Huang Qin黄芩3g佐 AssistantClears the heat that the constrained pathogen generates甘Gan Cao甘草1.5g使 EnvoyHarmonizes the harsh and the cooling herbs and protects the middle

Indications

Opens and reaches the membrane sourceDisperses filth and transforms turbidityClears heat while protecting the fluids

Epidemic pestilential qi lodged in the membrane source, and malarial disorders of the same kind. The pathogen is neither on the surface nor in the yangming interior, so releasing the exterior fails and purging is premature; it must be dislodged from where it is hiding.

Clinical Manifestations

  • Epidemic febrile disease with strong aversion to cold then high fever
  • Malarial-type fever at irregular or fixed intervals
  • Chest oppression with nausea
  • Headache and restlessness in a damp-turbid febrile illness
  • Thick powdery white tongue coat in an acute fever
TongueDeep red margins with a filthy, greasy coat — classically thick and white like heaped powder
PulseWiry and rapid

Health Categories

Digestive HealthImmune SupportCold & Flu Relief

Modern Applications

MalariaInfluenzaTyphoid feverFever of unknown originAcute gastroenteritis

Common adjustments

  • Pathogen spreading to shaoyang with rib-side pain and deafness — add Chai Hu 柴胡
  • Spreading to yangming with forehead pain, dry eyes and nasal dryness — add Ge Gen 葛根
  • Spreading to taiyang with head, neck and back pain — add Qiang Huo 羌活
  • Interior heat has formed and the stool is bound — add Da Huang 大黄 — the classical San Xiao Yin line of adjustment

Contraindications

Not for a simple exterior wind-cold or wind-heat pattern, and not once the pathogen has clearly entered the qi or blood level with high fever and thirst but no greasy coat. The acrid, drying herbs injure yin, so avoid in marked yin deficiency.

For licensed practitioners’ reference only — not a self-treatment guide.

Pregnancy

Avoid in pregnancy unless a practitioner judges the febrile illness to require it — Bing Lang and Hou Po are strongly downward-moving and dispersing, and the formula as a whole is drying.

Related Formulas

References

Source Wen Yi Lun 《温疫论》 · Ming

「三味协力，直达其巢穴，使邪气溃败，速离膜原，是以为达原也。」
— 《温疫论》(classical source, public domain)
  1. Classical source (public domain), cited in the source-quote section.
    2. Scheid, Bensky, Ellis & Barolet. Chinese Herbal Medicine: Formulas & Strategies, 2nd ed. — composition & dosage cross-checked.
    3. 《方剂学》（全国中医药行业高等教育规划教材）— pattern analysis cross-checked.

Professional reference notice. Entries are scholarly references for licensed TCM practitioners and students — not medical advice, and not a recommendation to self-prescribe. Chinese herbal formulas should be used under the guidance of a qualified practitioner. Content is an original editorial compilation by Cura x Cura, cross-checked against the cited references.