Processed Pinellia Rhizome Slices Classic Formulas … Natural Herb Library

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Dries dampness and transforms phlegm ... Fa Ban Xia is a core processed Pinellia lane for copious damp-phlegm, chest oppression, greasy tongue coating, and a heavy obstructed middle burner.
Redirects rebellious Stomach Qi downward and stops vomiting ... it is widely used for nausea, retching, focal distension, and phlegm-fluids disturbing the Stomach.
Reduces phlegm causing dizziness or nodulation ... traditional use extends to phlegm misting the clear Yang, a globus-like throat sensation, and mixed phlegm-damp obstruction patterns.

Er Chen Tang ... classic damp-phlegm formula in which processed Ban Xia is a central drying and descending herb.
Xiao Ban Xia Tang ... simple anti-vomiting pairing with Sheng Jiang for rebellious Stomach Qi.
Ban Xia Bai Zhu Tian Ma Tang ... treats dizziness and heaviness when phlegm-damp and Spleen deficiency disturb the clear Yang.

Traditional Chinese medicine requires Ban Xia to be processed before internal use because the raw rhizome is irritant and toxic.
Fa Ban Xia is one of the major processed lanes discussed in materia medica teaching for drying dampness, transforming phlegm, and stopping vomiting.
Modern inference ... many studies discuss processed Pinellia broadly rather than distinguishing every pharmacy-grade preparation, so this record follows the standard Fa Ban Xia clinical lane.