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Silkworm droppings
原蚕沙 〔原蠶沙〕yuán cán shā

Latin pharmacognostic name: Bombycis Faeces
Alternate Chinese names: 晚蚕沙 wǎn cán shā; 蚕沙 cán shā; 蚕砂 cán shā
Kingdom: Plant
Origin (other sources): Bombyx mori L.
Use: Medicinal
Category: Wind-damp–dispelling agents / Wind-cold-damp–dispelling agents
Properties: Sweet and acrid; warm; nontoxic*.
Channel entry: Liver, spleen, and stomach channels.*
Indications:
- Dispels wind and dampness: Wind-damp impediment (fēng shī bì) pain; eczema with itching.
- Harmonizes the stomach and transforms turbidity:
vomiting and diarrhea withcramps .Dosage & Method: Oral: 5–10g; or use in pills and powders. Can also be applied topically.
Quality: Dry firm uniform black droppings without impurities are the best.
Product Area: Zhèjiāng, Jiāngsū, Guǎngdōng.
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