Rabdosia rubescens (Donglingcao)

Distribution:
Mainly in Henan province and areas south of Yellow River Valley (China).
 
Properties (characteristics):
Bitter and sweet in taste, slightly cold.
 
Channels (meridians) entered:
Stomach, lung and liver.
 
Actions & Indications:
Clears heat and toxins, nourish yin, remove blood stasis and relieve swelling, relieves pain.
Being used in cancer of esophagus, and cardia; breast and liver. For swelling of throat, insect bites, snake bites, Acute Tonsillitis, Chronic Tonsillitis.

It is effective for epithelial hyperplasia of esophagus; for stomach ache due to stomach-heat, inflammation of the throat, hot cough, mammary abscess, chronic bronchitis, chronic inflammation of the pelvic area.　

Medical Function:
1. Its active ingredients rubescensine A (C20H28O6  molecule weight 364.42)  and rubescensine B can inhibit the synthesis of deoxyribonucleic acid and protein of cancer cells. They showed to inhibit Ehrlich-Ascites tumors, sarcoma180 and esophageal carcinoma in laboratory animals.

2. Relieves esophagismus induced by acetylcholine

3. Possesses anti-bacterial function, and rids of parasites and kills insects

Modern Research:
1. Its components rubescensine A and B inhibit Ehrlich-Ascites tumor, sarcoma180 and esophageal carcinoma in laboratory animals.
2. Relieving esophagismus induced by acetylcholine.