Bàn Xià (Pinellia)
🧅- Primary Action Dries dampness and transforms cold-phlegm.
- Secondary Action Harmonizes the Stomach and stops vomiting.
- Character Pungent, Warm, Toxic (processed). Acts on LU, ST, SP.
Chén Pí (Aged Citrus Peel)
🍊- Primary Action Regulates Qì and adjusts the Middle Burner.
- Secondary Action Dries dampness and transforms phlegm.
- Character Pungent, Bitter, Aromatic, Warm. Acts on LU, SP.
The Mutual Reinforcement
In TCM, "the Spleen is the source of phlegm, and the Lung is the container of phlegm." This pairing addresses both sides. **Bàn Xià** actively dries the dampness already present, while **Chén Pí** moves the Qì to ensure that dampness doesn't stagnate and turn into phlegm again.
Mechanism: Bàn Xià transforms the "substance" of phlegm, while Chén Pí resolves the "stagnation" of Qì. Together, they achieve the clinical goal of "Transforming Phlegm by Regulating Qì."
Dry & Down
Substance Removal
Move & Flow
Dynamic Circulation
Pharmacological & Kinetic Profile
Alkaloids and Bioflavonoids in synergy.
| Aspect | Bàn Xià (Pinellia) | Chén Pí (Citrus) |
|---|---|---|
| Key Active Compounds | Alkaloids (Guanylate), Beta-sitosterol, Choline. | Hesperidin, Nobiletin, Limonene (volatile oils). |
| GI Action | Strong anti-emetic; suppresses the vomiting center in the brain. | Prokinetic; increases gastric motility and relaxes smooth muscle. |
| Respiratory Action | Significant antitussive; increases the cough threshold. | Expectorant; thins mucus and facilitates discharge via volatile oils. |
| Metabolic Impact | Regulates fluid transport via Aquaporin (AQP) regulation. | Lipid-lowering; improves glucose metabolism and reduces inflammation. |
Clinical Target Affinity
How they impact the Middle and Upper Burners.
Formula Architecture
The Èr Chén Tāng Lineage
The concept of "Two Cured Ingredients" (aged herbs are superior for reducing irritation).
| Formula | Added Herbs | Specific Indication |
|---|---|---|
| Èr Chén Tāng | Base (BX, CP, FL, GC) | Standard Damp-Phlegm cough/nausea. |
| Wēn Dǎn Tāng | + Zhú Rú, Zhǐ Shí | Gallbladder/Stomach Heat with Phlegm (Anxiety, insomnia). |
| Liù Jūn Zǐ Tāng | + Sì Jūn Zǐ Tāng | Spleen Qì Deficiency leading to Phlegm. |
| Bàn Xià Bái Zhú Tiān Má Tāng | + Bái Zhú, Tiān Má | Wind-Phlegm causing dizziness and headache. |