Description

Origin:
the rhizome of drynaria fortunei (kunze) j. Sm. Or drynaria baronii (christ) diels, a perennial plant, of the family polypodiaceae.

in china, the former is mainly produced in the provinces zhejiang, hubei, guangdong, guangxi, sichuan, etc., While the latter is mainly produced in shaanxi, gansu, qinghai, sichuan, etc. Harvested all year round, the leaves and scales are removed from the rhizome, then the rhizome is washed clean, sliced and dried for use when raw or after being sand-scorched.

properties:
bitter in flavor, warm in nature, it is related to the liver and kidney channels.

functions:
promotes blood circulation to heal wounds and nourishes the kidneys to strengthen bones.

applications:
1. To treats traumatic injuries, sprains, contusions, bruises, incised wounds, injuries of bones and muscles and swelling and pain with blood stasis:

this herb can activate the flow of blood in the vessels, promote the reunion of fractured bones and lacerated muscles and heal wounds to alleviate pain.

a) traumatic injuries:

it can be soaked alone in wine for oral administration or for external application.

b) incised wounds, laceration of muscles and tendons and fractures:

this herb is used in combination with pyrite, myrrh, etc., E.G., Gusuibu san in the book ‘peaceful holy benevolent recipes’.

2. Treats lumbago and weakness of the feet due to deficiency of the kidneys, tinnitus and deafness, toothache, prolonged diarrhea, etc.:

bitter in taste and warm in nature and entering the liver and kidney channels, this herb can warm and nourish kidney-yang, strengthen bones and muscles and restore qi.

a) lumbago and weakness of the feet due to deficiency of the kidneys:

it is used in combination with malaytea scurfpea (fructus psoraleae), ox-knee root (radix achyranthis bidentatae/radix cyathulae), etc.

b) tinnitus and deafness and toothache due to deficiency of the kidneys:

this herb is used in combination with prepared rehmannia, medicinal cornel fruit (fructus corni), etc.

c) prolonged diarrhea due to deficiency of the kidneys:

the herb is ground alone into powder, placed in pig kidneys and simmered until cooked for eating.

d) streptomycin (a commonly used antibiotic in cell culture media) side effects:

recently this herb has produced certain effects when used for the treatment of the side effects of streptomycin.

3. Miscellaneous:

it can also be used for the treatment of alopecia areata (a patchy baldness usually of a temporary nature), vitiligines, etc.

dosage and administration:
decoct for oral administration.

use an adequate amount externally.

cautions on use:
this herb should be used carefully by anyone with yin deficiency but without internal heat or without blood stasis.

reference materials:
‘kai bao materia medica’ :

“dissipating blood stasis to arrest bleeding and healing lacerations and fractures.”

‘the compendium of materia medica’ :

“tinnitus, prolonged diarrhea due to deficiency of the kidneys and toothache.”

“long, long ago, there was a person named wei who suffered from prolonged diarrhea. He had been treated by many physicians, but in vain, and he was on the verge of death. Therefore the powder of this herb was placed in a pig kidney and simmered until cooked for eating. His diarrhea ceased forthwith.”

‘new compilation of materia medica’ :

“atrophic debility of bones.”

“in case of loss of hair after illness, it should be decocted together with wild rose branches for brushing the hair.”

toxic or side effects:

modern researches:
this herb contains hesperidin, davallic dihydroflavonoid glycoside, davallic acid, etc.

drynaria root can promote the absorption of calcium by bones and raise the levels of blood calcium and blood phosphorus to facilitate the healing of fractures. It has a certain chondrocyte-improving function and it can postpone the retrograde degeneration of cells.

this statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure, or prevent any disease.