Rhizoma Gastrodiae

 

Source
The tuber of Gastrodia elata Bl. (Orchidaceae) symbiosis with Armillaria mellea (Vahl ex. Fr.) Quel. (Fungi), boiled with water ol steamed and dried after the cortex is discarded.

Characteristics
The tuber appearing as long oval in shape, circular jointu with spotted root scars over the cortex and a "parrot-beak" like bud at the top of the tuber or stem base. On the cross section, the cutin appears translucent without any fibre. Sweet in taste, mild in nature and attributive to liver channel.

Indication
1. Calm the liver-wind: For syndrome of liver-wind stirring inside, such as infantile convulsion, tetanus, epilepsy, as well as dizziness and headache due to sthenia of liver-yang or the attack of wind-phlegm. Recently it is also used for the treatment of neurasthenia, nervous headache and hypertension.
2. Expel wind evil and alleviate pain: For migraine, arthralgia due to wind-dampness type, numbness of the extremities, and general fatigue, etc.

Pharmacological Action
1. Its active component gastrodin exerts as sedative, hypnotic and antispasmodic.
2. It may increase blood flow and decrease the peripheral resistance of blood vessels.

Administration Decoction: 3-9g.
Powder: 1.0-1.5g bid or tid.


   

Please feel free to contact
Mr. Wang Tao

E-mail:
herb@damo-qigong.net
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