Fresh rehmannia root (Shengdihuang)
Pharmaceutical Name: Radix Rehmanniae
Botanical Name: Rehmannia gultinosa Libosch.
Common Name: Fresh rehmannia root
Source of Earliest Record: Shennong
Bencao Jing.
Part Used & Method for Pharmaceutical
Preparations: The roots are dug in spring or autumn. After the fibrous
roots have been removed, the roots are dried in the sun, and then cut into
slices.
Properties & Taste: Sweet, bitter
and cold
Meridians: Heart, liver and kidney
Functions: 1. To clear heat and cool
blood; 2. To nourish yin and promote the production of body fluids
Indications & Combinations:
1. Exogenous heat invading at the nutritive
and blood levels manifested as dry mouth and deep red tongue proper with scanty
coating. Fresh rehmannia root (Shengdihuang) is used with Scrophularia
(Xuanshen), Rhinoceros horn (Xijiao) and Ophiopogon root (Maidong).
2. Yin and body fluids consumed in the late
stage of febrile diseases manifested as fever at night, and subsiding in the
morning without presence of sweating. Fresh rehmannia root (Shengdihuang)
is used with Anemarrhena rhizome (Zhimu), Sweet wormwood (Qinghao) and Turtle
shell (Biejia).
3. Hemorrhaging due to extravasation of
blood by heat manifested as vomiting with blood, epistaxis, blood in the urine,
bloody stool and functional uterine bleeding. Fresh rehmannia root
(Shengdihuang) is used with Biota tops (Cebaiye) and raw Lotus leaf (Heye).
4. Febrile disease with excessive toxic heat
in the blood, epistaxis and maculopapule. Fresh rehmannia root
(Shengdihuang) is used with Rhinoceros horn (Xijiao), Moutan bark (Mudanpi) and
Red peony (Chishao).
5. Febrile disease with consumption of body
fluids manifested as red tongue proper, dry mouth, thirst and excessive
drinking. Fresh rehmannia root (Shengdihuang) is used with Fragrant
solomonseal rhizome (Yuzhu), Ophiopogon root (Maidong), Glehnia root (Shashen)
and Dendrobium (Shihu). If there is constipation, Fresh rehmannia root
(Shengdihuang) is used with Scrophularia (Xuanshen) and Ophiopogon root
(Maidong).
Dosage: 9-30 g.
Cautions & Contraindications: This
herb is contraindicated in cases with deficiency and excessive dampness in the
spleen, full sensation in the abdominal region or diarrhea.
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