Individual Herbs Notebook

齿 Long Chi

Pharmaceutical: Dens Draconis

Other names: Fossilised Teeth

Category: Substances that Calm the Spirit



Properties: Astringent, cool

Meridans Entered:
Primary: Liver and Heart


Traditional Actions: Clear heat, relieve restlessness, relieve convulsion and induce tranquilization.
Traditional Indications: Insomnia, dreaminess, palpitation, epilepsy, dysphoria with smothery sensation.


Suggested Daily Dosage: 10-15g in decoction.


Cautions: The high mineral content of this medication may prevent the oral absorption of the fluoroquinolone class of antibiotics.

Animal products are prohibited from use in the UK under the Medicines Act 1968 ch. 67 which restricts herbalists to the use of plant products only. It is generally substituted with Hu Po and Gou Teng.


Appears in 4 formulae listed on this site: (click to display)
Research Links & References: (click to display)