Liu Yu Tang六郁汤
Six Constraints Decoction
Ingredients10 herbs
Indications
The six constraints with damp and phlegm predominating. Qi constraint remains the root, but the fluids have already congealed, so the treatment opens the qi and transforms the phlegm in the same prescription rather than trusting the qi movement alone to clear it.
Clinical Manifestations
- Chest and epigastric fullness with a heavy, thick tongue coating
- Nausea, retching or copious sticky sputum from constraint
- Distending pain of the epigastrium and flanks
- Poor appetite with a sense of blockage after eating
- Emotional constraint accompanied by dizziness or a muzzy head
Health Categories
Modern Applications
Common adjustments
- Phlegm heavy, sputum copious — add Gua Lou 瓜蒌 and Zhi Ke 枳壳
- Food accumulation as well — add Shen Qu 神曲 and Shan Zha 山楂, restoring the parent formula's food-dispersing herb
- Constraint has turned to heat — increase Zhi Zi 栀子 and add Huang Lian 黄连
- Flank pain marked — add Chai Hu 柴胡 and Bai Shao 白芍
Contraindications
Not for a dry, red, peeled tongue or any yin-deficient picture — this is a drying formula built on Ban Xia, Cang Zhu and Chen Pi. Where phlegm is thick and yellow from real heat, the warm drying herbs need re-thinking rather than simple addition.
For licensed practitioners’ reference only — not a self-treatment guide.
Pregnancy
Use with caution in pregnancy and only under supervision. It contains prepared Ban Xia, which is traditionally restricted in pregnancy, along with Chuan Xiong and Xiang Fu, which move blood and qi strongly.
References
Source Yi Xue Zheng Chuan 《医学正传》 · Ming
- Classical source text (public domain).
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.
