Radix Platycodi

 

Source
Root of Platycodon grandifiorum (Jaoq.) A. DC., family Campanulaceae.

Characteristics
Root long-conical or long-cambiform, somewhat twisted, some with branches, 6-25 cm long, 0.5-2.5 cm in diameter. Surface yellowish white or white, longitudinally wrinkled, with transverse scars; the upper end enlarged as an rhizome on which appearing semilunar stem scars. Prepared as crosscutting slices, section comeous; cambium ring brown, cortex slightly loose, xylem dense. Bitter and acrid in taste, bland in nature, and attributive to lung channe.

Indication
1. Open the inhibited lung-energy and eliminate phlegm: For affection of exogenous pathogenic factor or accumulation of phlegm in the lung, manifested as cough with thick sputum, chest pain and feeling of oppression in the chest.
2. Ease the throat and phonation: For sorethroat, aphonia.
3. Eliminate phlegm and drain the pus: For lung abscess. Usually used together with Radix Glycyrrhizae (Decoction of Piatycodi and GIycyrrhizae) for the above syndromes.

Pharmacological Action
1. Small dosage of platycodoside, one of its active components, can increase secretion of respiratory tract and promote expectoration.
2. Platycodoside may also serve as a sedative, an analgesic and an antipyretic.
3. Its decoction inhibits the growth of Staphylococcus aureus and Bacillus typhoid in vitro.

Administration Decoction: 3-9g.


   

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Mr. Wang Tao

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