| 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: | kidney bladder |
| Actions & Indications: 功用﹕ | Rid of damp heat, especially in the xiao jiao (lower burner), as in vaginal bacterial infection, bacterial infection of the bowel, wet and smelly groin area, hot leg qi with swollen knees, legs and feet, and infectious jaundice. |
| 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: | 1. (berberine), (jatorrhizine), (magnoflorine), (phellodendrine), (candicine), (palmatine), (menisperine). 2. (obaculactone), (obacunone), (obacunonic acid). 3. (7-dehydrostigmasterol), (β-sitosterol), (campesterol). 4. (lumicaeruleic acid), (dictamnolide). |
| Dosage: | 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。 |
