Dragon bone is a commonly used traditional Chinese medicine. It was first recorded in "Shen Nong's Materia Medica". It has the functions of calming the liver and subduing yang, calming convulsions and calming the nerves, astringing and firming astringency, promoting muscle growth and reducing ulcers. It is used for palpitation, insomnia, dreaminess, headache, dizziness, spontaneous sweating, night sweats, spermatorrhea, leucorrhea, metrorrhagia, sores and other symptoms.
Source? 1. Keel: It is the skeleton fossil of ancient mammals such as three-toed horses, rhinoceros, and elephants.
2. Five-flowered keel: It is the fossil of the incisor of an ancient mammal.
Origin and distribution? Mainly produced in Gansu, Shanxi, Qinghai, Ningxia, Inner Mongolia and other places. Sold nationwide and exported.
Key points for identification? The main difference between keels and five-flowered keels is: the former is in the shape of bones or broken blocks, white or off-white, and some have textures or spots. The joint sections have honeycomb holes and are sticky when licked. The tongue may be slightly sticky; while the five-flowered keel is cylindrical or irregular in shape, smooth with five-color texture, easily broken, and has no small holes in the cross section, making it sticky to the tongue when licked. The two come from different sources, so their shapes are slightly different.
Identification of famous classics? 1. "Shen Nong's Materia Medica": "Dragon bone tastes sweet and flat. It is mainly used for confidants and ghosts... children with heat and epilepsy... are born in valleys." 2. Liang Yu's "Famous Doctors": " They were harvested from the dead dragons in the valleys of the Jin Dynasty and in the earth caves on the rocky banks of Taishan Mountain." 3 Tao Hongjing said: "Now there are many places in Liang, Yi and Bazhong. If you want to get the bones, make a white brocade and lick them. The tongue is good, the teeth are small and strong, and the horns are strong and solid. They are all dragon sloughs, not really dead." 4 Lei Xuezao said: "The ones from Shanzhou, Cangzhou, and Taiyuan are the best. Their writing is fine and broad. The ones with thick bones are long and narrow, and the ones with five colors are on the top, the white ones are in the middle, and the black ones are on the bottom. If the sutra is not clean, it is not used if it is picked by a woman." 5 Su Gong of the Tang Dynasty said: "Now. It also comes from the Jin region. Those who are blunt are not good, and those who have five colors are good. The green, yellow, red, white, and black should also match the internal organs according to the color, such as five rays, five quartz, and five stone fat, but this book does not mention it. "6 Song Dynasty? Kou Zongshi said: "There are different opinions, but it is all conjecture. There was once a pair of cliffs that collapsed, with all the branches, heads and horns. I don't know if it was dead?" 7. "Materia Medica Mengquan" of Ming Dynasty: " There are many dragon bones in the east of the river, and there are many cliff caves. It is a guess to say that the dragon bones are narrow and the lines are thick, and the five colors are white and yellow. If it is black, it is very low. If it is detected, it is not false. If it sticks to the tongue, it is good. . Out of Chuangu and Liangyi Bazhong in Jin Dynasty... people may have faked it with ancient mine ashes."
Quick identification? 1. Keel: It is in the shape of bones or has been broken into irregular blocks of different sizes. The surface is white, off-white or light brown, mostly smooth, and some have textures and cracks or brown stripes and spots. It is hard, has an uneven cross-section, and has many honeycomb-shaped holes at the joints. Highly hygroscopic, odorless and tasteless.
2. Wuhua keel: irregular block or cylindrical shape, different sizes and lengths. The surface is light gray-white, light yellow-white or light yellow-brown, with blue-gray and red-brown patterns of different depths and thicknesses, and occasionally no patterns. The surface is smooth with occasional small cracks. It is hard, brittle, and easily weathered, so it is often sealed with paper to prevent it from falling apart. Highly hygroscopic, odorless and tasteless.