Zi Ran Tong

Naming

Zi Ran Tong (Pyritum)——Lei Gong Pao Zhi Lun (Lei’s Treaties on Preparation of Drugs)

The Processing of Zi Ran Tong

Origin

The iron pyrite of sulfide mainly containing FeS2.

Location

Sichuan, Hunan and Yunnan provinces in China.

Harvest

Collected all the time.

The actual smell and taste

No smell and taste.

Best quality

Regular, yellow with brightness, metalic luster of cross section.

Processing

Smashed, calcined by fire and quenched in vinegar, made powder or refined with water.

The Effect of Zi Ran Tong

Property

Pungent, neutral; liver and kidney meridians entered.

Actions

Dissolve stasis and alleviate pain, reunion bones and cure trauma.

Indications

Traumatic injuries, bone fracture and soft tissue injuries, congestion, swelling and pain.

This herb has the actions of dissolving stasis, alleviating pain and promoting healing of bone fracture as a specific herb of traumatology. It is used both internally and externally. It is usually combined with blood-activating and trauma-curing analgesics such Xue Jie, Ru Xiang and Mo Yao, etc.

Dosage and Administrations

Decoct 10~15 g, 0.3 g in powder. Proper dose for external application.