Rumex japonicus (Yangti)

Distribution:
North eastern part and northern part of China and in provinces of Hebei, Shanxi, Shaanxi, Gansu, Jiangsu, Zhejiang , Henan, Hubei, Hunan, Guangxi, Xizang, and Taiwan etc.

Properties (characteristics):
Bitter, sour,cold and slightly toxic

Channels (meridians) entered:
Heart, liver, large intestine.

Medical functions:
Antibiotic effect
anti-inflammatory effect
anti-viral effect
arresting bleeding effect
anti-tumor effect
regulate immune system effect
small dosage inhibits motility of the large intestine; large dosage enhance motility of the large intestine and creates laxative effect
　
Actions & Indications:
For internal use it is similar to da huang: Nasal Bleeding, functional bleeding of the uterus, purpura due to thrombocytopenia, Virus Hepatitis, inflammation of the anus, Constipation. Fresh squeezed juice is effective for fungus infection of skin, Hemorrhoids, inflammation of the mammary glands, Eczema. Taken internally causes diarrhea. Do not substitute yang ti with da huang for external use.

Dosage:
To take internally:12 to 19 grams. External use: no limit

Warning:
It contains oxalic acid. Using large amount can be toxic to the kidneys.