TCM China:  

Introduction To Dragon's Bone (long gu) 









Dragon's Bone (long gu)  

Os Draconis Fossilia


Properties: Astringent and sweet in flavour, mild in nature, it acts on heart, liver and kidney channels. This drug is heavy and can lower the adverse Qi. It has the functions of sedation, tranquilization, suppressing hyperactivity of liver-yang and astringency. It can be used to treat intranquility of mind caused by disturbance of Yang-qi, vertigo and headache due to hyperactivity of liver-yang, sweating, loss of blood, and leukorrhea due to deficiency of healthy Qi.

Effects: Sedation and tranquilization, calming the liver and suppressing hyperactivity of liver-yang, restraining spermatorrhea.


1. Restlessness, insomnia due to hyperactivity of Yang and deficiency of Yin. It is used with tranquilizers, such as Radix Paeoniae Alba, Concha Margaritifera Usta, Concha Ostreae, Cinnabaris, etc. For intranquility of mind, palpitation, insomnia and aminesia due to deficiency of Qi and blood, it is used with Radix Ginseng, Semen Ziziphi Spinosae, Semen Biotae, etc.

2. Irritability, dizziness and headache caused by hyperactivity of liver-yang due to deficiency of Yin of kidney and liver, it is often used with drugs of nourishing Yin and suppressing hyperactivity of Yang , auch as Concha Ostrae,, Conche Haliotidis, Radix Achyranthis Bidentatae, Radix Paeoniae, Flos Chrysanthemi.

3. With drugs of astringency and arresting perspiration, such as Concha Os-treae, Fructus Schisandrae, Fructus Tritici Levis, it is used to treat spontaneous sweating and night sweat. With herbs of astringing intestine and arresting diarrhea, such as Halloysitum Rubrum, Fructus Mume Fructus Chebulae, it is used to treat chronic diarrhea. It is used with hemostatics and herbs for metrorrhagia, such as Radix Astragali, Sea Hedysari, Rhizoma Atractylodis Macrocephalae, Os Sepiella sea Sepiae, Radix Rubiae, to treat metrirrhagia due to deficiency and cold, For spermatorhea due to deficiency of kidney, it is often used  with herbs of tonifying kidney, such as Semen Nelumbinis, Semen Euryales, Semen Astragali Complanati, etc.

Dosage and Administration: 10-30g, crushed before using and decocted ealier than other herbs. For astringing it should be used calcined. For other therapeutic purpose, it is used perferable unprepared.


For the convenience of customers, we offer the Dragon's Bone (long gu) as the quick-dissolving granule made through modern technology.




Every sachet is equivalent to raw herb 20 grams.


The dosage is for adults, one sachet each time, twice a day. Please put the granule into a cup, then put 50-100ml boiling water into the cup and stir it with spoon. You will get some tea, drink it when it is luke-warm. For children, the dosage should be reduced according to the weight.


Air ship 50 sachets of Dragon's Bone (long gu) in the form of quick-dissolving granule for your personal use now at $98.00.

If you would like to order this raw herb, please go to the order form.


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