Synopsis

Source of validity: Traditional
Rating (out of 5): 3

Chen pi (dried tangerine peel) is a widely used herb in Traditional Chinese Medicine (TCM), primarily for its effects on the digestive system. According to TCM theory, chen pi is considered to regulate qi (energy), harmonize the stomach, and resolve phlegm. Its use for nausea and vomiting is well-documented in classical TCM texts, where it is described as a remedy for stagnation in the middle burner (stomach and spleen area), often manifesting as bloating, poor appetite, nausea, and vomiting. Chen pi is a common ingredient in many traditional herbal formulas for digestive complaints, such as “Er Chen Tang” and “Ban Xia Hou Po Tang.”

Modern scientific studies on chen pi are limited but do indicate some pharmacological effects relevant to nausea and vomiting. Experimental research has shown that chen pi contains volatile oils (such as d-limonene and hesperidin) which may have prokinetic (enhancing gut motility) and antiemetic effects in animal models. However, high-quality human clinical evidence is lacking; most support for its use comes from centuries of empirical observation and traditional practice. Thus, while there is plausible rationale and extensive traditional endorsement for using chen pi to support nausea and vomiting, the scientific validation is not robust enough to raise the evidence level above a 3, reflecting strong tradition and some preliminary scientific promise but not definitive clinical proof.

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