Atractylodis Rhizoma (苍术) is the dried rhizome of Atractylodes lancea (Thunb.) DC. or A. chinensis (DC.) Koidz. , family Asteraceae (Compositae).
Kot-Ka-Mao (Thai name), Cangzhu (Chinese name), Atractylodes Rhizome
Maocangzhu (A. lancea) : Irregularly moniliform, somewhat curved, occasionally branched. External greyish-brown. Texture compact, fracture scattered with many orange-yellow or brownish-red oil cavities and crystallized out as white fine needle crystals. Odor, characteristic; taste, slightlysweet, pungent and bitter.
Beicangzhu (A. chinensis) : Nodular-cylindrical. External blackish-brown. Texture loose, fracture scattered with yellowish-brown oil cavities. Odor, slightly aromatic; taste, pungent and bitter.
Important cultivation area
Jiangxu, Hubei, Henan, Zhejiang provinces.
1. Cangzhupian : Eliminate foreign matters, wash clean, soak in water until thoroughly soften, cut into thick slices, and dry.
2. Fuchaocangzhu : Stir-bake wheat bran on a medium fire until smoke (use 10 kg of wheat bran for 100 kg of Cangzhupian), then stir-bake until the color turns dark, sift out wheat bran.
Traditional Chinese Medicine action
Pungent, bitter; warm. Enter spleen, stomach and liver channels.
1. Cangzhupian : Dry dampness to fortify the spleen, dispel wind
and dissipate cold, improve vision.
2. Fuchaocangzhu : Stir-bake with wheat bran reduces pungent, moderate dryness, more aromatic and more potent to fortify spleen and stomach.
Thai Traditional Medicine action
Odor, aromatic; hot. Norish Dhatu, enhance appetite, relieve sore in mouth and throat, dyspnea, cold, nasal decongestant, fever, sweating, migraine and promote urination.
Usage and dosage
5-10 g, decoction for oral use.
* Contraindication and precaution *
Contraindicated in yin deficiency patient with interior heat and qi deficiency patient with profuse sweating.
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