Ban Xia - Pinelliae Rhizoma Preparatum - Pinelle préparée

Ban Xia is the processed rhizome of Pinellia ternata, commonly used in Traditional Chinese Medicine to resolve phlegm, stop nausea, and reduce masses or nodules. It is primarily used to treat digestive and respiratory disorders associated with dampness and phlegm accumulation. Raw Ban Xia is toxic and must always be processed—typically with ginger or alum—before internal use. This herb is particularly helpful for symptoms like vomiting, chest fullness, coughing with phlegm, or the sensation of a lump in the throat (known as “plum pit Qi”).

Fonctions et avantages

Transforms Phlegm and Stops Coughing
Ban Xia effectively addresses coughing with copious, thick phlegm that is difficult to expectorate. It is frequently used for conditions involving damp-phlegm accumulation in the lungs.

Stops Nausea and Vomiting
It is one of the main herbs in TCM for stopping various types of vomiting, whether due to cold, heat, phlegm-dampness, or rebellious Stomach Qi.

Dissipates Nodules and Reduces Clumps
Ban Xia can break down phlegm-related masses, including goiters, swellings under the skin, or the sensation of something stuck in the throat without a physical cause.

Indications
Ban Xia is used for patients with persistent nausea, vomiting, or acid reflux, especially when related to damp obstruction. It’s beneficial in cases of productive cough with white or yellow phlegm, dizziness or vertigo caused by internal phlegm, and for those who feel a blockage in the throat due to emotional stress or Qi stagnation. It is also included in formulas for phlegm-nodules like thyroid swelling or scrofula.

Diagnostic de la langue et du pouls en MTC
The typical tongue presentation includes a greasy white or yellow coating, indicating internal phlegm or dampness. The pulse is usually slippery, suggesting excess phlegm, or wiry when there is also Qi stagnation or emotional involvement.

Common TCM Patterns Treated by Ban Xia
Ban Xia is often used in patterns involving Phlegm-Dampness in the Lungs, where it treats cough and wheezing with thick sputum. It is also essential in Stomach Qi rebellion, helping to ease nausea, belching, or vomiting. In cases of “Plum Pit Qi,” it helps when patients feel like something is stuck in their throat due to emotional distress and phlegm. It is also valuable for phlegm-nodules, including goiter or thyroid swelling.

Précautions et contre-indications
Ban Xia must never be used in its raw form due to its toxic nature. It is contraindicated in individuals with Yin deficiency and signs of internal heat, such as dry mouth or red tongue. Caution is advised when treating patients with dry cough, blood-tinged sputum, or those who are pregnant. Proper combination with harmonizing herbs is essential to reduce its irritant properties.

Conclusion
Ban Xia is a key herb in TCM for resolving phlegm, stopping nausea and vomiting, and breaking down nodules. Its versatility in treating both digestive and respiratory issues makes it widely applicable, especially in disorders involving dampness and Qi rebellion. Though powerful, it must always be used in a properly prepared form and under professional guidance to ensure safety and effectiveness.