Single Herbs

Category	Qing Re Yao 清熱藥
Sub Category	Qing Re Liang Xue 清熱涼血
Name	Sheng Di Huang 生地黃 Rehmannia
Grown	North and central China.
Source	Dried rhizome of Rehmannia glutinosa (GAERTN.) LIBOSCH.
Ingredients	Stachyose, Verbascose, Catalpol, Aucubin, Rehmannioside
Pharma Effect	1) Effect on glucose: oral ingestion of the herbal extract can lower glucose in rabbits. 2) Others: the herbal extract can strengthen heart and elevate blood pressure. A small dose can contract blood vessels and large amount will expand them. It is diuret
Properties	Fresh herb: sweet, bitter, cold. Dried herb: sweet, cold
Channels	Heart, liver, kidney
Function	Fresh herb: clears fire, cools blood, stops vomiting and relieves febrile disease symptoms. Can be used as an antipyretic. Dried herb: nourishes yin and cools heat in the blood. Can be used for nourishing and strengthening.
Clinic Usage	Fresh herb: for exogenous febrile disease and weakness due to overstrain. Treats symptoms such as coughing with blood-streaked sputum, thirst, nosebleeds, bloody vaginal discharge, postpartum bleeding, internal injuries due to extreme distress, threatened
Cautions	Use with caution in cases of diarrhea due to stomach or spleen deficiency, lack of appetite due to stomach deficiency and copious phlegm in chest or diaphragm.
Dosage	10~30g. Use in decoctions or smash fresh herb and mix with prescription.
Storage	Fresh herb: store in a cool place. Do not store for an extended period. Dried herb: store in a cool, dry place.