Ox gallstone (Niuhuang)

Pharmaceutical Name : Calculus Bovis

Zoological Name : Bos taurus domesticus Gmelin

Common Name : Ox gallstone, Bos calculus

Source of Earliest Record : Shennong Bencao Jing

Part Used & Method for Pharmaceutical Preparations: The gallstone of an ox is collected in any season, or the bile of an ox or pig is used instead. After gathering, the material is dried and made into powder or pills.

Properties & Taste : Bitter and cool

Meridians: Liver and heart

Functions:
1. To clear heat and release toxins;
2. To eliminate endogenous wind and stop convulsions;
3. To resolve phlegm and promote resuscitation

Indications & Combinations:
1. Loss of consciousness and convulsions caused by high fever. Ox gallstone (Niuhuang) is used with Coptis root (Huanglian), Rhinoceros horn (Xijiao) and Musk (Shexiang) in the formula Angong Niuhuang Wan.

2. Sore throat or ulcers and boils due to accumulation of toxic heat. Ox gallstone (Niuhuang) is used with Natural indigo (Qingdai) and Honeysuckle flower (Jinyinhua).

Dosage: 0.2-0.5 g

Cautions & Contraindications: This substance is contraindicated during pregnancy.