錢氏異功散 Qian's Yigong San

 Qian's Yigong San

Ingredients:

• Ginseng (Ren Shen)
• Atractylodes (Bai Zhu)
• Poria (Bai Fu Ling)
• Tangerine peel (Ju Pi)
• Costus root (Mu Xiang)
• Licorice (Gan Cao) - each 1 qian

Preparation: Grind the ingredients and make one dose, adding 3 slices of ginger and 2 dates. Boil with water and take as a decoction. (from "Compendium of Materia Medica")

Indications: For individuals with a bladder constitution, taiyang-type body, pale face, and large mouth.

(膀胱體,太陽形,面白口大者)

Explanation: This formula treats spleen and stomach weakness, poor appetite, indigestion, and feelings of oppression in the chest. (治脾胃虛弱, 飮食不進, 未能消化,心胸病悶)

Section on Internal Injuries: Remedies for Food Injuries<內傷門·食傷補益之劑>

When the spleen and stomach are weak and it's difficult to digest food, it is not advisable to use strong medications indiscriminately. Instead, using Qian's Yigong San will naturally help improve appetite. In cases where excessive eating has harmed the spleen, causing blockage and bloating, use Zhi Shi Wan (also known as Zhi Shi Dao Zhi Wan) as appropriate, but it should not be used in large amounts. (from "Compendium of Materia Medica")

Qian's Yigong San is a modified version of Si Junzi Tang. It is fundamentally used when a person with qi deficiency has indigestion. It is often used for patients with a large mouth and a small nose, or with an upturned nose and eyes (taiyang type, low qi and abundant blood). When we eat food (essence) through the mouth, it accumulates and rises up to the nose (qi) where it should be dispersed. This indicates that there is a deficiency of the dispersing qi. (芝山)

In the case of a boy with an upturned nose and eyes (taiyang type, with low qi and abundant blood) who has qi deficiency and is taking ADHD medication, he experiences vomiting when consuming water or food, as well as vomiting and dizziness when doing pull-ups. He was successfully treated with Wuling San. It seems that his qi deficiency prevents proper fluid metabolism.

In Qian's Yigong San, the symptom of chest tightness and discomfort arises due to qi deficiency, which prevents the proper dispersal of qi.