The root of the Chinese angelica plant is used to treat joint pain.

The root of the Chinese quince tree is also known by many other names such as tiger root, ban root, field quince, etc., and is a plant whose roots are used to make medicine.

Whenever medicinal herbs containing the word "bone" are mentioned, the first thing that comes to mind is something related to treating bone diseases, for example, *Cốt toái bổ* (a type of herb), *Bổ cốt chi* (a type of herb)... Thus, *Cốt khí củ* (a type of root) is no exception to this rule. When talking about *Cốt khí*, one can think of at least two plants: *Cốt khí củ* (Polygonum cuspidatum Sieb. et Zucc., Polygonaceae family) and *Cốt khí muồng* (Cassia ocidentalis L., Caesalpiniaceeae family).

The plant and tuber of Coptis chinensis.

The root of the Chinese angelica plant, also known by other names such as tiger root, ban root, and field stone, is used as medicine. However, it is commonly referred to as "the root" in folk medicine, hence the name "root"... To obtain the medicinal material, after harvesting, usually from September onwards, ideally in winter, when the above-ground parts of the plant have begun to wither, the roots are dug up, washed to remove soil and sand, the smaller roots are cut off, dried until slightly shriveled, and then dried with sulfur to prevent mold; after that, they are further dried or oven-dried and stored in clean sacks in a dry, cool, and well-ventilated place. Before use, they are soaked to soften, washed clean, sliced, dried, and roasted until golden brown. It should also be noted that Chinese angelica root is very susceptible to mold, reducing the quality of the medicine. Therefore, post-harvest processing and processing before use are matters that require utmost attention.

The chemical composition of the root of *Cynanchum auriculatum* is mainly composed of anthranoid compounds. The aqueous extract of *Cynanchum auriculatum* has anti-inflammatory effects, inhibits tumor growth, and inhibits mutation and DNA closure by 1-nitropyrene. It is one of the medicinal herbs with anti-aging effects. The root extract also has hemostatic, antitussive, bronchodilating, cholesterol-lowering, and inhibitory effects on Staphylococcus aureus, Pseudomonas aeruginosa, and Shigella dysenteriae. The stibens in *Cynanchum auriculatum*, especially resveratrol, reduce lipoprotein (LDL) deposition, act as antioxidants, prevent the development of skin cancer, and can alter triglyceride and cholesterol synthesis, reducing damage to nearby tissues.

According to Traditional Chinese Medicine, the root of the Coptis chinensis plant has a bitter taste and warm nature. It acts on the liver and pericardium meridians, with the functions of promoting blood circulation, regulating menstruation, relieving pain, dispelling wind and dampness, clearing damp heat, reducing inflammation, and killing bacteria.

The medicinal herb is the root of the bone-strengthening plant.

The root of the Coptis plant is used as medicine in the following ways:

It treats rheumatism, bone and joint pain, knee pain, shoulder pain, back pain, and pain in the finger and toe joints... due to its blood-activating properties.

Prescription: 20g each of *Cynanchum auriculatum* root, *Tinospora cordifolia* root, *Cynanchum stauntonii* root, *Piper betle* leaves, *Glycyrrhiza glabra* vine, and *Tinospora cordifolia* vine, decocted and drunk once a day for 2-3 weeks. Alternatively, use 12g each of *Cynanchum auriculatum* root and *Gynostemma pentaphyllum* root, 20g each of *Akebia quinata* and *Ipomoea nil* leaves, decocted and drunk to treat knee pain, swelling and pain in the soles of the feet...

Additionally, the root of the Chinese angelica is often combined with blood-activating herbs such as Leonurus japonicus, Carthamus tinctorius, Prunus persica, and Spatholobus parviflorus to treat abdominal pain due to amenorrhea, menstrual cramps, postpartum blood stasis, abdominal distension causing pain or swelling due to trauma or falls, etc.

The remedy: 20g of Coptis root, 30g of Impatiens leaves. Boil and drink, divided into two doses per day.

To treat acute hepatitis, use 15g each of Coptis root and Polygonum multiflorum, and 20g of Impatiens leaves. Boil and drink one dose per day for 3-4 weeks; or combine with 12-16g each of Desmodium gyrans, Plantago major, and Dioscorea opposita to treat hepatitis, cholecystitis, gallstones, and urinary stones.

The root of the Coptis chinensis plant is also used to treat arteriosclerosis, coughs, asthma, and hypertension... However, in specific cases, it is often combined with other herbs to enhance its therapeutic effect.

According to SKĐS