Platycodon root (Jiegeng)
Platycodon grandiflorum (Jacq.) A. DC. (Fam. Campanulaceae).
Pharmaceutical Name: Radix Platycodi
Botanical Name: Platycodon
grandiflorum (Jacq.) A. DC. (Fam. Campanulaceae).
Common Name: Platycodon root, Balloon flower
root.
Source of Earliest Record: Shennong
Bencao Jing.
Part Used & Method for Pharmaceutical
Preparations: The Platycodon roots are dug in either spring or autumn, but
the autumn roots are better quality. After the root bark has been removed, the
roots are dried in the sun and cut into slices.
Properties & Taste: Bitter, pungent
and neutral.
Meridian: Lung.
Functions: 1. To promote the dispersing
function of the lungs; 2. To resolve phlegm; 3. To expel pus.
Indications & Combinations:
1. Failure of lung qi to disperse due to
invasion of exogenous pathogenic factors manifested as cough with profuse
sputum or sputum that is difficult to expectorate, fullness and distension in
the chest and hypochondriac region, sore throat and hoarse voice. Platycodon
root (Jiegeng) is used with Apricot seed (Xingren), Perilla leaf (Zisuye) and
Tangerine peel (Chenpi) for wind-cold cough. Platycodon root (Jiegeng) is used
with Apricot seed (Xingren), Mulberry leaf (Sangye), and Trichosanthes fruit
(Gualou) for wind-heat cough. Platycodon root (Jiegeng) is used with
Scrophularia (Xuanshen), Licorice root (Gancao) and Arctium fruit (Niubangzi)
for sore throat and hoarse voice.
2. Toxic heat accumulated in the lungs (lung
abscess) manifested as cough with blood or pus, yellow and offensive smelling
sputum and chest pain. Platycodon root (Jiegeng) is used with Houttuynia
(Yuxingcao), Benincasa seed (Dongguaren) and Trichosanthes fruit (Gualou).
Dosage: 3-10 g decocted in water for an
oral dose.
Precaution:
Contraindicated in hemoptysis.
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