Long Gu

Os Draconis, Dragon Bone

Dosage

Decoction 10-15g.

Chemical Composition

Long Gu is mainly composed of CaCO3, Ca3(PO4)2. (1) , (2) , (3) , (4)

Inorganic Chemicals

Fe, K, Na, Cl, Se, Hg, Al, Mn, Pb, Zn, Cu, and Sulfates.

Precautions

Exercise caution when administering to patients of damp-heat syndromes.

Pharmacology

Sedative-hypnotizing effects

Experiments on mice show that administered at 20ml/kg, the 20% suspension of Long Gu, Long Chi and Hua Rui Shi can significantly increase the rate of pentobarbital sodium-induced hypnotism.

Anti-convulsive effects

Administered to mice at 20ml/kg once daily for four consecutive days, the 20% suspension of Long Gu, Long Chi, and Hua Rui Shi can significantly counteract dimefline-induced convulsion.

Promoting blood coagulation

Administered to mice at 20ml/kg once daily for four consecutive days, the 20% suspension of Long Gu, Long Chi, and Hua Rui Shi can significantly shorten blood coagulation time.

References

  1. Mao Wei Lung, et al. China Journal of Chinese Medicine. 1989;14(12):725-727.
  2. Huang Yin Mo, et al. Journal of Chinese Patented Medicine. 1990;12(6):31-32.
  3. Yang Lian Ju, et al. China Journal of Chinese Medicine. 1991;16(9):522-523.
  4. Zhang Yong Ping, et al. Journal of Trace Elements and Health Research. 1995;12(2):27-28.