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Alternate Chinese names: 石髓铅 shí suǐ qiān

Kingdom: Plant

Origin in PRC Pharmacopoeia: Pyrite is a mineral containing FeS₂. (PRC Pharmacopoeia)

Use: Medicinal

Category: Blood-quickening stasis-transforming agents / Blood-quickening injury-healing agents

Properties: Acrid; balanced. (Some sources also add bitter.)

Channel entry: Liver channel.

Actions and indications:

• Disperses stasis and relieves pain, joins bones and treats injuries: Injury from knocks and falls, broken bones and ruptured sinews, painful stasis swelling.
• Additional uses: Zì rán tóng may be used to treat goiter, sores, and burns and scalds.

Dosage and method: Oral: 3–9g in decoctions; or use in pills or powders. Topical: Grind and apply mixed.

Warnings: Contraindicated in pregnancy. unsuitable for prolonged use and should be used with care in yīn vacuity with effulgent fire or blood vacuity in the absence of stasis.

Quality: Best are neat evenly sized cubes that are yellow and shiny.

Production area: Sìchuān, Guǎngdōng, Húnán.

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