Peucedanum root (Qianhu)
Peucedanum praeruptorum Dunn. (Fam. Apiaceae)
Radix Peucedani
Pharmaceutical Name: Radix Peucedani
Botanical Name: 1. Peucedanum
praeruptorum Dunn.; 2. Peucedanum
decursivum Maxim. (Fam. Apiaceae)
Common Name: Peucedanum root, Hogfennel
root.
Source of Earliest Record: Mingyi Bielu.
Part Used & Method for Pharmaceutical Preparations:
Dried
root
Radix
Peucedani is produced mainly in the provinces of Zhejiang, Hunan, and Sichuan.
After the root is collected in winter and spring, the stem and the leaves are
removed and the root is cleaned. Then it is dried in sunlight, sliced, and used
unprepared.
Meridian: Lung.
Functions: 1. To promote dispersing
function of the lungs and clear heat; 2. To resolve phlegm and stop cough
Indications & Combinations:
1. Phlegm-heat accumulating in the lungs
manifested as cough with yellow and thick sputum. Peucedanum root (Qianhu)
is used with Mulberry bark (Sangbaipi), Trichosanthes fruit (Gualou) and
Tendrilled fritillary bulb (Chuanbeimu) in the formula Qianhu San.
2. Cough due to invasion by exogenous
pathogenic wind and heat. Peucedanum root (Qianhu) is used with Mentha
(Bohe), Arctium fruit (Niubangzi) and Platycodon root (Jiegeng).
Dosage: 6-10 g, decocted in water for
an oral dose.
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