Arisaema tuber (Tiannanxing)
Pharmaceutical
Name: Rhizoma Arisaematis.
Botanical
Name: 1. Arisaema consanguineum
Schott.; 2. Arisaema amurense Maxim.;
3. Arisaema heterophyllum Bl.
Common
Name: Arisaema tuber.
Source
of Earliest Record: Shennong Bencao Jing.
Part
Used & Method for Pharmaceutical Preparations: The tuberous
rhizomes are dug in autumn or winter. After the fibrous roots and bark have
been removed, the rhizomes are dried in the sun and cut into slices.
Properties
& Taste: Bitter, pungent and warm.
Meridians:
Lung, liver and spleen.
Functions:
1. To dry dampness and resolve phlegm; 2. To dispel wind and stop
spasms.
Indications
& Combinations:
1. Phlegm-damp cough manifested as profuse,
dilute and white sputum and stifling sensation in the chest: Arisaema tuber
(Tiannanxing) is used with Pinellia tuber (Banxia), Tangerine peel (Chenpi) and
Immature bitter orange (Zhishi) in the formula Daotan Tang.
2. Phlegm-heat in the lungs manifested as
cough with profuse, yellow and thick sputum and stifling sensation in the chest:
Arisaema tuber with bile (Dannanxing) is used with Scutellaria root (Huangqin)
and Trichosanthes fruit (Gualou).
3. Wind-phlegm manifested as dizziness,
vertigo, rattling sound in the windpipe, facial paralysis, epilepsy and
convulsions in tetanus: Arisaema tuber (Tiannanxing) is used with Pinellia
tuber (Banxia), Gastrodia tuber (Tianma) and Typhonium tuber (Baifuzi).
Dosage:
5-10 g.
Cautions
& Contraindications: This herb is contraindicated during pregnancy.
In general, the raw herb is not used for internal use.
Arisaema tuber with bile (Dannanxing)
When arisaema tuber is powdered
and mixed with ox bile, it is called Arisaema tuber with bile (Dannanxing). The
combination is bitter and cool. It clears heat and resolves phlegm, dispels
wind and stops convulsions. It is used to treat convulsions, windstroke and
epilepsy. The recommended dosage is 2-5 g.
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