AN XI XIANG (安息香)
Last updated: 2021-03-30 | 1690 Views |
Benzoinum (安息香) is the dried resin collected from the trunk of Styrax tonkinensis (Pierre) Craib ex Hart., family Styracaceae.
Other name Kam-Yan (Thai name), Anxixiang (Chinese name), Benzoin
Macroscopic character
Small irregular pieces, somewhat flat, often stuck into masses. External orange-yellow, with waxy lustre (naturally injured resin); or irregularly cylindrical, flat pieces, external greyish-white to pale yellowish-white
(artificially incised resin). Texture fragile, easily broken; fracture even, white, gradually becoming pale yellowish-brown or reddish-brown on storage, soften and melt on heating. Odor, aromatic; taste, slightly pungent, with a sensation of sand when chewing.
Important cultivation area
Yunnan and Guangxi provinces.
Traditional Chinese Medicine action
Pungent and bitter; neutral. Enter heart and spleen channels. Open the orifices, lighten the spirit, move qi, activate blood, relieve pain.
Usage and dosage 0.6-1.5 g, generally used in pills or powder.
* Contraindication and precaution *
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