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Huang Long Tang黄龙汤

Yellow Dragon Decoction

Purging Downward 泻下剂Purge with Tonification 攻补兼施

Indications

Purges heat bound in the bowelAugments qi and nourishes bloodAttacks the excess without collapsing the patient

Yang Ming bowel excess with qi and blood already depleted. Purging alone would empty what little remains; tonifying alone would feed the blockage. The formula does both at once, which is the whole point of this sub-section.

Clinical Manifestations

  • Bowel excess with watery discharge leaking past an impaction
  • Constipation with a hard painful abdomen in an exhausted patient
  • Febrile illness with delirium, picking at bedclothes, clouded consciousness
  • Fever with cold extremities and a weak pulse alongside a blocked bowel
TongueScorched yellow or scorched black coating
PulseWeak or deficient beneath an apparently excess picture

Health Categories

Digestive HealthCognitive & Memory SupportEnergy & FatigueImmune Support

Modern Applications

Common adjustments

  • Fluids severely damaged, tongue dry and cracked — the appended Xin Jia Huang Long Tang 新加黄龙汤 replaces the qi-breaking herbs with fluid-generating ones
  • Qi collapse dominant — increase Ren Shen 人参 and reduce the purging share
  • Excess dominant with strength still adequate — the plain Da Cheng Qi Tang is the more direct choice

Contraindications

Not for constipation from deficiency alone — there must be a real accumulation to remove. The presentation it treats is serious and often needs emergency medical assessment alongside herbal treatment. Because the patient is already weak, this is a short course watched closely.

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

Pregnancy

Contraindicated in pregnancy. Da Huang, Mang Xiao, Zhi Shi and Hou Po together are a full purge with strong qi-breaking, and the tonic herbs do not make that safe during pregnancy. A pregnant patient presenting this way needs emergency assessment.

Related Formulas

References

Source Shang Han Liu Shu 《伤寒六书》 · Ming

  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)— chapter placement, 功用 and 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.