1. Keel: Alias Land Rover Legacy, Naga Bone, Wuhua Keel, Tsinghua Keel, Huahua Keel and Bailong Keel, it is the skeleton fossil of ancient mammals such as elephant, rhinoceros, three-toed horse, cow and deer. It consists of apatite, calcite and a small amount of clay minerals. Conical or cylindrical, often broken after calcination. It has astringent taste and cool nature, and can soothe the nerves, clear away heat, and treat palpitation and insomnia. 2. earthworm: it is the dry body of earthworm, commonly known as earthworm. Location: Guangxi, Guangdong and Fujian. Cold in nature and salty in taste. Can clear away heat, relieve convulsion, dredge collaterals, relieve asthma and induce diuresis; Can be used for treating coma due to high fever, convulsion, joint paralysis, limb numbness, hemiplegia, asthma and cough due to lung heat, oliguria and edema, etc.

3. Dragon clothes: It is often said in Fang that the dragon clothes and snake slough are the dry epidermis of snakes, black-browed snakes, golden snakes or Zaocys. Harvesting in late spring, early summer or early winter, removing sediment, and drying. The smell is slightly fishy and the taste is light or slightly salty. Has the effects of expelling pathogenic wind, calming convulsion, removing toxic substances and eliminating nebula. Used for infantile convulsion, convulsion, corneal rash, laryngitis, furuncle, skin itching, etc. 4. Solanum nigrum seed: It is the seed of Solanaceae plant Solanum nigrum, which is taken when the fruit of Solanum nigrum is ripe in autumn. The fatty acids in seeds are mainly palmitic acid, stearic acid, oleic acid and linoleic acid, and contain a small amount of sterols. Sweet, warm and nontoxic. Indications: acute tonsillitis and furuncle.

5. Five-claw dragon: the scientific name is Saussurea involucrata, which is the whole grass of Saussurea involucrata, also known as Saussurea involucrata, five-leaf rattan and sow rattan. Born in wilderness, valleys, forests, roadsides. Flat in nature, sweet in taste and slightly bitter. Has the effects of expelling pathogenic wind and removing dampness, removing blood stasis and swelling, clearing away heat and toxic materials, promoting blood circulation and removing blood stasis, promoting diuresis and eliminating dampness, and can be used for treating sore throat, furuncle, furuncle, dysentery, hematuria, turbidity, traumatic injury and snake bite. 6. Gentiana: the general name of Gentianaceae plants and Chinese herbal medicine Gentiana. There are more than 240 species of Gentiana in China, most of which are distributed in the southwest mountainous areas. Gentiana scabra is also an important medicinal plant, and its roots and rhizomes have the functions of clearing away heat, purging liver and relieving convulsion. Compendium of Materia Medica records: "Bitter, astringent, cold and nontoxic. It is mainly used to treat cold and heat between bones, fright, follow-up injury, strengthen five internal organs, kill insects and detoxify. " Gentiana scabra also has a good effect on treating alopecia.

7. Dragon teeth: tooth fossils of ancient mammals such as elephants, rhinoceroses and three-toed horses. Dragon teeth are cool, sweet and astringent, and have the functions of calming the nerves, clearing away heat and removing annoyance. Indications: epilepsy, madness, palpitation, insomnia, dreaminess, body heat and upset. 8. Dragon blood; It is the resin of Dracaena of Liliaceae, mainly distributed in Yunnan and Southeast Asian countries. The main component is dracorhodin B, which is slightly fragrant and astringent. Functions: promoting blood circulation, removing blood stasis, relieving pain, stopping bleeding, healing sores and promoting granulation. Can be used for traumatic injury, blood stasis pain, qi stagnation and blood stasis in women, traumatic hemorrhage and abscess.