Pei Lan (Herba Eupatorii) ——Shen Nong Ben Cao Jing (Shen Nong’s Herbal)
The Processing of Pei Lan
The aerial part of Eupatorium fortunei Turcz. of family Compositae.
Jiangsu, Zhejiang, Hebei provinces, etc. in China.
Collected in summer and autumn.
The true smell and taste
Fragrant, slightly bitter.
Dry, a lot of leave, green color, tender with strong fragrant.
Dried in shade or sun, unprocessed or use the fresh one.
The Effect of Pei Lan
Pungent, neutral; spleen, stomach and lung meridians entered.
Resolve dampness, release exterior.
A.Syndrome of damp obstruction of middle energizer
It is fragrant and usually combined with Guang Huo Xiang for the syndrome of damp obstruction of middle energizer because they are similar in the actions of resolving dampness and harmonizing middle energizer. It also can be combined with Cang Zhu, Hou Po and Kou Ren. It is mild, not warm, and not dry in property and good at curing damp-heat in spleen meridian manifested as sweetness and greasiness in mouth, plenty of saliva and halitosis; it can be decocted alone or with the heat-clearing and damp-resolving herbs such as Huang Qin and Yi Yi Ren.
B.The early stage of summer-damp syndrome and damp-warm syndrome
It is aromatic and its actions are similar to Guang Huo Xiang. It can dispel summer-heat from exterior and resolve damp-turbidity from interior, but its actions of warming and dispersing are mild because it is neutral in property.
For the early stage of summer-damp syndrome and damp-warm syndrome manifested as chills with fever, headache, chest fullness, and greasy tongue coating, it is usually combined with the herbs for resolving dampness, clearing summer and releasing exterior such as Guang Huo Xiang, Hou Po, He Ye and Bo He.
Dosage and Administrations
Decoct 5~10 g, the dosage of the fresh is doubled.