Prepared Fossilized Dragon Teeth Classic Formulas … Natural Herb Library

Primary Actions

Calms the spirit and relieves agitation ... Duan Long Chi is used for insomnia, fright, dream-disturbed sleep, irritability, and palpitations when the Heart spirit is unsettled.
Clears heat and settles convulsive unrest ... traditional use extends to epilepsy, spasms, and agitation when Liver wind or heat contributes to the presentation.
Anchors and quiets rather than richly nourishes ... it works through the heavy settling action of a fossil-mineral medicine rather than through tonic supplementation.

Long Chi with Yuan Zhi, Fu Shen, and Ren Shen ... spirit-calming pairing logic for fright, palpitations, and insomnia.
Long Chi with Gou Teng, Tian Ma, or Niu Huang ... traditional strategy when agitation is accompanied by wind, tremor, or seizure tendency.
Mineral-settling combinations with Long Gu and Mu Li ... classical logic when heavy anchoring of the Heart and Liver is required.

Traditional references describe Long Chi as astringent and cool, entering the Heart and Liver with actions of relieving restlessness, settling fright, and calming convulsive agitation.
Preparation mainly changes handling, texture, and practicality rather than creating a wholly different therapeutic family.
PREPARATION NOTE: Duan Long Chi refers to a processed or calcined fossil tooth specimen used medicinally, not to a different source material from Long Chi.