Ping Wei Pian (Ping Wei San, Ping Wei Wan, Stomach Dampclear™, 平胃片) is an ancient Chinese herbal medicine that eliminates Dampness in the digestive tract.† This formula is used for the TCM syndrome that includes abdominal distention, loss of appetite, loose stool, and nausea. †
Stomach Dampclear is an ancient formula. It's Chinese name, Ping Wei Wan, means "Calm the Stomach Pills".
Dating back 1000 years, this formula consists of six botanical herbs. These herbs synergistically dry dampness in the digestive tract and invigorates Spleen's transporting function, promotes the movement of Qi, and harmonizes the stomach.
When talking about Spleen in TCM, it's quite different than "the spleen" organ of western anatomy. In TCM theory, Spleen is the primary organ system of digestion. Spleen's main function is to transform and transport nutrients.
But when you eat foods like ice cream a lot, dampness can manifest in Spleen. Ice cream is one of the biggest offenders in creating Spleen dampness. And when dampness overloads the Spleen, Spleen's ability to function properly is impeded. Spleen dampness is apparent when the tongue presents with a white, greasy, thick coating.
When dampness settles in the intestines, loose stools may occur.
The herbs in this TCM formula dry dampness and invigorate the Spleen, and regulate Spleen and Stomach Qi, thus harmonizing the middle Jiao.
Cang Zhu (Atractylodes Rhizome) is a bitter, warming herb that directly influences the Spleen, Stomach and Liver Channels. It is best used to dry dampness and strengthens Spleen.
Hou Po (Magnolia Bark), like Cang Zhu, dries dampness. It also influences the Large Intestine Channel. Moreover, it moves rebellious Qi downward, thereby resolving distention.
Chen Pi (Dried Tangerine Peel), also bitter and warming, regulates Qi, invigorates Spleen, and harmonizes Stomach.
Gan Cao (Licorice Root) is sweet and influences the Heart, Lung, Spleen and Stomach Channels. Its main action in Stomach Dampclear is tonifying the Spleen and augmenting Qi, as well as harmonizing the action of other herbs.
Da Zao (Chinese Date), a sweet and warming herb, directly influences the Spleen and Stomach Channels and has the same actions as Gan Cao in this application.
The last herb in the formula, is Sheng Jiang (Fresh Ginger). A famous herb for curbing nausea and vomiting, Sheng Jiang warms the Middle Burner (part of the Zang-fu organ system that consists of the abdominal area organs).
Ping Wei Pian (Stomach Damp Clear)
Cang-zhu atractylodes rhizome (Atractylodes lancea) (Cang Zhu) Magnolia bark (Magnolia officinalis) (Hou Po) Tangerine dried rind (Citrus reticulata) (Chen Pi) Chinese licorice root (Glycyrrhiza uralensis) (Gan Cao) Jujube fruit (Ziziphus jujuba) (Da Zao) Ginger rhizome fresh (Zingiber officinale) (Sheng Jiang)