1 TASTE
Sweet and slightly warm

2 MERIDIANS
Liver and kidney

3 FUNCTIONS
To nourish blood and replenish yin

4 INDICATIONS
1. Deficient blood syndrome manifested as sallow complexion, dizziness, vertigo, palpitations, insomnia, irregular menstruation and uterine bleeding. Preared rehmannia root (Shu Di Huang) is used with Chinese angelica root (Dang Gui) and White peony root (Bai Shao)in the formula Siwu Tang.    2. Deficient kidney syndrome manifested as afternoon fever, night sweating, noctural emissions, diabeted, dizziness and blurred vision. Prepared rehmannia root (Shudihuang) is used with Dogwood fruit (Shan Zhu Yu) and Dioscorea (Shan Yao) is the formula Liuwei Dihuang Wan.    3. Deficient yin and excessive fire syndrome manifested as afternoon fever, feverish sensation on the palms, soles and in the chest, night sweating, noctural emissions, red tongue proper with scanty coating and thready, rolling and rapid pulse. Prepared rehmannia root (Shudihuang) is used with Tortoise plastron (Gui Ban), Anemarhena rhizome (Zhi Mu) and Phellodendron bark (Huang Bai) in the formula Zhi Bai Dihuang Wan.

5 DOSAGE
10-30 g

6 COUTIONS
This herb is contraindicated in cases with qi stagnation and profuse phlegm, with epigastric and abdominal distension and pain, and with poor appetite and Diarrhea.