Dragon bones are fossilized bones of ancient mammals such as elephants, rhinoceroses, and three-toed horses. After digging out the keel bone, soil and impurities are removed. Five flowers keel brittle, out of the ground, exposed to the air is very easy to break, commonly used burlap paste. The surface is white, grayish white or yellowish white to light brown, mostly smooth, some with longitudinal fissures or with brown stripes and spots.
Hard, smashed, uneven section, white or yellowish white, some hollow. The joints are enlarged, and there are small honeycomb holes in the section. Strong moisture absorption. Odorless and tasteless. Hard, white color, strong moisture absorption is preferred.
The five-flower keel is also called five-colored keel (Guangli Fang). Cylindrical or irregular block. 5~25cm in diameter. Diameter 5~25cm. light gray-white, light yellow-white or light yellow-brown, mixed with blue-gray and red-brown pattern of different shades of coarse red, occasionally without pattern.
Generally the surface is smooth, sometimes the outer layer is flaked in pieces, uneven, with fissures. The texture is more crispy, after broken, the section is rough, can be seen wide and narrow concentric ring pattern.
The efficacy of the Chinese medicine keel
1, calm the mind and tranquilize the spirit: used for mental depression, palpitations and forgetfulness, insomnia and dreaming, etc., often with raw tortoise board, calamus, far Zhi, each equal portion of the powdered water pills to serve.
2, calm the liver and submerge Yang: used for hypertension caused by headache and dizziness, irritability and other evidence, often with oysters, raw white peony, Bai Wei, chrysanthemum, hooker, etc..
3, astringent and fixing loss: used in spermatorrhea, diaphoresis, spontaneous sweating, night sweating, excessive menstruation, etc. It is often used with calcined oyster, yam, cuttlebone and poria.
4, muscle astringent sores: used for sores and ulcers long time not close the mouth and umbilical cord sores, bleeding gold sores, etc., and with alum, each equal parts of the powder for external use.