Pharmaceutical name:

Cortex Phellodendri

Biological name:

Phellodendro amurense Rupr. or Phellodendro chinense Schneid.

Pron. in Japanese:

obaku

Pron. in Korean:

kwangbaek

Pron. in Cantonese:

wong pak

Common Name:

amur cork-tree bark

Distribution:

Liaoning, Jilin, Hebei (P. amurense), Sichuan, Guizhou, Hubei, Yunnan (P. chinense)

Properties (characteristics)性味﹕

bitter, cold

味苦，性寒

Channels (meridians) entered:

歸經﹕

腎﹐膀胱經

kidney﹐ bladder

Actions & Indications:

功用﹕

1. Rid of damp-heat , especially in the xiao jiao (lower burner), as in vaginal bacterial infection or yeast infection, bacterial infection of the bowel,and infectious jaundice, wet and smelly groin area;

2. For hot leg qi with swollen knees, legs and feet;

3. spermatorrhea;

4. night sweating﹔

5. boils and sores﹔

1. 去 濕熱﹐  特別是下焦之感染﹐如﹕陰道黴菌(帶下)或細菌感染﹐大腸之細菌感染﹐細菌性黃疸﹐陰部潮濕腥臭等﹔

2. 腳氣﹕腳﹐腿﹐膝部水腫﹔

3. 遺精﹔

4. 盜汗﹔

5. 瘡瘍腫毒﹔

Medical Function:

藥理﹕

(1) antibiotic: it can inhibit Staphylococcus aureaus, pnumococcus, Shigella dysenteriae

(2) lower blood pressure

(3) anti Trichomoniasis

(4) lower blood sugar

(1)抗菌，能直接抑制金黃色葡萄球菌﹐

肺炎球菌﹐痢疾桿菌；

(2)降血壓

(3)抗陰道滴蟲；

(4)降血糖。　

Chemical ingredients:

化學成份﹕

 樹皮含 (bark contains)﹕

1. 小孽 鹼 (berberine),

2. 藥根鹼（jatrorrhizine),

3. 木蘭花碱(magnoflorine),

4. 黄柏鹼 (phellodendrine),

5. n-甲基大麦芽碱(candicine),

6. 棕櫚鹼（palmatine）,

7. 蝠葛任鹼（menisperine）,.

8.  黄柏内酯(obaculactone),

9. 黃 蘗 酮（obacunone）,

10. 黃 蘗 酮 酸 (obacunonic acid).

11. 白鲜交酯 (dictamnolide),

12. 青螢光酸 (lumicaeruliec acid)﹐

13. 7-脱氫豆甾醇(7-dehydrostigmasterol)﹐

14. β-谷甾醇 (β-sitosterol)﹐

15. 菜油甾醇 (campesterol),

16. 青螢光酸 (lumicaeruleic acid),

17. 白鮮交酯(dictamnolide)。

18. 木材也含(wood contains:)

19. 小孽 鹼 (berberine)。

新鮮葉( leaves contian:)

1. 含黄柏甙 (phellamurin)﹐

2. 脱氫黄柏甙 (amurensin)﹐

3. 異黄柏甙 (phellavin)。

乾燥葉 含(dried leaves contain:)

1. 金絲桃甙 (hyperosid)，

2. 不含黄柏甙 (do not contain phellamurin)。

Dosage:

每日用量﹕

3 to 12 g

Samples of formulae:

zhi bai di huang wan, long dan xie gan tang, zhi xie tang for diarrhea due to acute bacterial infection

Modern Research:

to be loaded.

Cautions:

Do not use in cases of spleen deficient, weak digestion, lack of appetite. Use caution when there is no real heat.

胃弱食少﹐脾虛泄瀉者忌服。無實熱者慎用。