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Dragon's bone (Longgu)
Pharmaceutical Name: Os draconis
Zoological Name: 1. Stegodon orientalis;
2. Rhinocerus senensia
Common Name: Dragon's bone, Fossilized bone
Source of Earliest Record: Shennong Bencao
Jing
Part Used & Method for Pharmaceutical
Preparations: The fossilized vertebrae and
other bones of ancient large mammals, such
as Rhinocerus or Rechistaric reptiles, are
collected and broken into pieces.
Properties & Taste: Sweet, astringent
and slightly cold
Meridians: Heart and liver
Functions:
1. To pacify the liver and subdue the yang;
2. To calm the heart and soothe the mind;
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3. To relieve leukorrhea and arrest seminal
emissions or sweating
Indications & Combinations:
1. Deficient yin of the liver and kidneys
with hyperactive yang of the liver manifested
as dizziness, vertigo, blurred vision or irritability.
Dragon's bone (Longgu) is used with Oyster
shell (Muli), Red ochre (Daizheshi) and White
peony root (Baishao) in the formula Zhengan
Xifeng Tang.
2. Seminal emissions due to deficient kidneys.
Dragon's bone (Longgu) is used with Oyster
shell (Muli), Flattened milkvetch seed (Shayuanzi)
and Euryale seed (Qianshi).
3. Palpitations and insomnia. Dragon's bone
(Longgu) is used with Oyster shell (Muli),
Polygala root (Yuanzhi) and Wild jujube seed
(Suanzaoren).
4. Leukorrhea due to deficient kidneys.
Dragon's bone (Longgu) is used with Oyster
shell (Muli), Dioscorea (Shanyao) and Cuttlefish
bone (Wuzeigu).
5. Spontaneous sweating and night sweating.
Dragon's bone (Longgu) is used with Oyster
shell (Muli) and Schisandra fruit (Wuweizi).
Dosage: 15-30 g
Cautions & Contraindications: This herb
should be cooked before adding other herbs.
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