Pharmaceutical name:

英文藥名﹕

Radix Gentianae longdancao

Biological name:

學名﹕

Gentiana scabra Bge,

Gentiana   triflora Pall., 三 花 龍 膽

Gentiana manshurica Kitag.,

Gentiana regescens Fransh.

Gentiana arisanensis Hayata  阿里山龍膽

Other Names:

別名﹕

Pron. in Japanese:

日語發音﹕

ryutanzo, rindouzo

Pron. in Korean:

韓語發音﹕

yongdanch'o

Pron. in Cantonese:

粤語發音：

lung4 daam2 cou2

Common Name:

常用英文名﹕

gentiana

Distribution:

分佈﹕

throughout China: Northeastern provinces (Manchuria), Anhui, Jingjiang of Jiangsu,Shandong. Those produced in Huzhou of Zhejiang is deemed best.

全中國﹐ 尤其在東北﹐ 安徽﹐ 江蘇﹐ 山東。 浙江湖州產 的一般認為品質較佳。

Properties (characteristics)：

bitter, cold, non toxic

苦 寒無毒

Channels (meridians) entered:

歸經﹕

gallbladder, liver, stomach

肝 ﹐膽﹐膀胱

Actions & Indications:

用途﹕

expels damp heat from liver and gallbladder channels with symptoms of high fever and seizures, red swollen sore throat and eyes, swollen and painful ears or sudden loss of hearing,  boils in mouth and tongue, hepatitis with jaundice, vaginal discharge, damp and itchy groln area, cystitis, inflammation of the urethra, boils on skin, feverish malaria, chronic gastritis, eczema, conjunctivitis, hypertension with dizziness and tinnitus, malaria, and herpes zoster.

高熱驚厥，目赤咽痛，口舌 生瘡， 濕熱黃疸，帶下，陰 部濕癢，膀 胱炎，尿 道炎，疥瘡，瘧疾發熱，慢 性胃黏膜炎，皮膚濕疹﹐血壓高兼頭暈耳鳴﹐帶狀庖疹。

Medical Function:

藥理﹕

Medical Function:

1. Decoction of long dan cao inhibits Pseudomonas aeruginosa﹐ Proteus species, Salmonella typhi and Staphylococcus aureaus, certian skin fungi and Leptospirosis.

2. Anti-inflammation.

3. sedative effect

4. muscle relaxing effect

5. Small amount taken half hour before meals can stimulate the digestive system and promotes bile, hydrochloride acid and other digestive enzymes secretion; thus promotes appetite. If taken after meals causes the secretion of digestive juices to go down. If large amount  is taken, it interferes with digestion, sometimes creates headache and dizziness.

6. lowers ALT, choleretic effect; and protects liver from damage

7. anti-oxidant effect [1]

8. anti-tuberculosis [2]

9. inhibits production of melanin

Chemical ingredients:化學成份﹕

Dosage:

用量﹕

03 to 3 g per day as decoction or powder form

一日量﹕0.3 ~ 3 克﹐水煎或作粉劑。

Samples of formulae:

to strengthen digestive system:

1. long dan cao 2 g, da huang 1 g, huang bai  1 g, water 400 c.c. Simmer till 150 c.c. Make into 3 serving per day. (source: He Han Yao Ying Yong Fang)

2. long dan cao powder 0.5 g, huang bai  powder 0.5 g, sheng jiang powder 0.3 g, hui xiang powder 0.3 g, ji nei jin powder 0.5 g, burnt shan zha powder 1 g, gui zhi powder 0.3 g, mix together.  Make into 3 servings per day.

治胃弱

1. 龍膽草2克 ， 大黃 1克 ，黃 柏 1 克﹐ 水400公 撮，煎至150公 撮，一日三回分服。

2. 龍膽草末0.5克 ，黃 柏末0.5克 ，生薑末0.3克 ， 桂 枝 末0.3克 ，茴香末0.3克 ，雞內金末0.5克 ，山查炭末1克 ，以上混和，一日三回分服。（和漢藥應用方）

Also see:

dang gui long hui wan 當歸龍薈丸

long dan xie gan tang  按此看龍膽瀉肝湯,

long dan xie gan wan 按此看龍膽瀉肝丸。,

Modern Research:

to be loaded soon

Cautions:

禁忌﹕

not to use in case of diarrhea due to pixu (spleen deficient) . Be careful not to use gui jiu by mistake. Gui jiu is a poisonous herb for cancer treatment.

脾虛﹐便溏及非實火症忌用.

注 意﹕龍膽草與鬼臼的形狀相似。鬼臼是用 來治癌症。有毒。