long gu 龍骨 (dragon bone), Long chi (dragon tooth) 龍齒
Edited by: Joe Hing kwok Chu (in English and Chinese 中英文)
long gu (literally dragon bones) refers to the fossil of the bones of the prehistoric animals of mastodons (elephant like animals), rhinoceros, and hipparions (three toed horses). Lon chi (literally dragon teeth), are the fossil of the teeth of those ancient animals.
Fossilia Ossis Mastodi
Pron. in Japanese:
Pron. in Korean:
Pron. in Cantonese:
long mu 龍牡；
The front teeth of mastodons are usually called wu hua (five flower)
long gu 五花龍骨.
象類門齒的 化石，習稱 “五花龍骨”
fossil bones of large mammals, keel.
mainly in Hebei, Shanxi, Shaanxi, Shandong, Inner Mongolia, Hubei
provinces of China.
主產河南， 河北，山西，陝 西，山東，内蒙古， 湖北等。
sweat, acrid, neutral.
Channels (meridians) entered:
heart, liver, large intestine, kidney.
calming: evoting GABA(A) receptor-mediated anti-anxiety effect 【1】
lessens the excitability of skeletal muscles
鎮靜： 能引起, γ-胺基丁 酸受體而抗焦虑作用。 【1】
Actions & Indications:
For treatment of unstable mood, palpitation, excessive dreams, irritability, seizures, dizziness, insomnia, forgetfulness, spermatorrhea, premature ejaculation, diarrhea, excessive bleeding not during menses, cold sweating, chronic ulcerated boils, wet eczema.External uses: baked ground long gu can be used for sprinkling or mix with water and to be pasted over affected areas. Raw untreated long gu is better for calming effect while the baked long gu is better for healing ulcers.
功能:有鎮驚安神，平降肝陽，斂汗固精，收濕生肌斂瘡的功能。用於神志不安 ，心悸怔忡，多夢，驚癇，煩 躁不安，頭目眩暈，失眠健忘，遺精早泄，泄瀉，崩漏帶下，虛汗，瘡瘍潰破久不癒合，濕疹流水等。
Mainly contain calcium carbonate, calcium phosphate, and some organic compounds.
for decoction: 9 to 15 g.
Samples of formulae:
For improving memory:Kong shen zhen zhong dan 孔聖枕中丹
For malignant lymphoma: he rong san jian wan 和榮散堅丸
For nose bleeding nonstop: zong lu, xiao ji, hua pi樺皮，long gu of equal amount, make into fine powder. Take 6 g each time, mix with cooked rice water.
Ha JH, Lee MG, Chang SM, Lee JT.
Department of Pharmacology, School of Medicine, Kyungpook National University,
Taegu, Republic of Korea. firstname.lastname@example.org
Fossilia Mastodi OSSIS, which is a skeletal fossil of a Mastodon, an ancient mammal, has been found to have anxiolytic, sedative and anticonvulsant activities in Oriental medicine. In this study, in vivo characterization of the sedative activities of Fossilia Mastodi OSSIS was performed in order to obtain basic information for the development of a putative natural sedative. The 80% methanol extract of Fossilia Mastodi OSSIS given per os at a dose of 3 g/kg in mice showed anxiolysis, potentiation of pentobarbital sleeping time, reduced locomotor activity, and anticonvulsive activity. Fossilia elicited GABA(A) receptor-mediated anxiolysis. The data obtained suggest that the 80% methanol extract of Fossilia Mastodi OSSIS contains some biologically active principles with sedative activity.
PMID: 16819180 [PubMed - indexed for MEDLINE]
Source: See this.
Toxicity & Cautions:
Not to use in cases of damp-heat .
有濕 熱，實邪 者不宜服用。
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Last update: Dec 19, 2012; 12:58 p.m. LAH