Decocting pieces
Processing Rhizoma Dioscoreae Oppositae Eliminate foreign matter, grade
according to size, soak and soften thoroughly, cut into thick slices,and dry. Subround
thick slices, Externally whitish or pale yellowish-white, Texture fragile, easily broken,
fracture whitish and starchy.
Checking Total ash Not more 2.0%.
Extratives Not more than 4.0%
The method of Identification、Checking (water content) is same like the method of
Rhizoma Dioscoreae Oppositae.
Rhizoma Dioscoreae Oppositae (stir-baked with bran) Stir-bake the slives of
Rhizoma Dioscoreae Oppositae as described under the method for stir-baking with
bran(Appendix Ⅱ D) to yellow.
Look like decocting pieces, externally yellowish-white or slightly yellow, with
occasional focal spot, odour, scorched.
Checking Water content Not more than 12.0%
Extratives Not less than 4.0%
The method of Identification、Checking (water content) is same like the method of
Rhizoma Dioscoreae Oppositae.
Action and indications To replenish the spleen and stomach, promote fluid
secretion and benefit the lung, and strengthen the kidney and restrain seminal
discharge. Anorexia and chronic diarrhea due diminished function of the spleen;
cough and dyspnea due to diminished function of the lung; seminal emission,
excessive leucorrhea, frequency of urination or diabetes due to deficiency of kidney.
Rhizoma Dioscoreae Oppositae (stir-baked with bran) Diminished function of the
spleen with anorexia, diarrhea and excessive leucorrhea.
Usage and dosage 15-30g
Storage Preserve in a ventilated and dry place, protected from moth.