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Scutellaria Root
Scutellaria Root
Market name:黄芩
Photo location:Museum of Materia Medica, Inst. of Nat. Med.
TMPW No.:18504
Scutellaria baicalensis
Plant name:Scutellaria baicalensis
Photo location:Inner Mongolia, China
Photo date:1994
Photographer:K. Komatsu

Latin name Scutellariae Radix
Botanical source: Family name Labiatae
Botanical source: Plant name Scutellaria baicalensis Georgi (IPNI:458155-1)
Part used Root
Empirical criteria for quality selection Good one is thick, long and dense. It is yellow without outer cover (NI). Shandon-huangqin and Rehe-huangqin are the highest quality.
Constituents Monosaccharides:


β-Sitosterol, Campesterol, Stigmasterol

Flavones & Flavonols:
Baicalin, Baicalein, Wogonin, Oroxylin A, 5,7,4'-Trihydroxy-8-methoxyflavone, 5,7,2',6-Tetrahydroxyflavone, Skullcapflavone I, Skullcapflavone II, 5,8-Dihydroxy-6,7-dimethoxyflavone, Oroxylin A glucuronide, Koganebananin, Wogonin-7-O-glucuronide
Pharmacological effects Antifebrile, detoxicant, enhancement of bile secretion, inhibition of the secretion of gastric juices, antiinflammatory, antiallergic, antibacterial, improvement of lipid metabolism, inhibition of thrombus formation, acts on arachidonic acid metabolic system, etc. (flavonoids).
Indications As an antiinflammatory and antifebrile, it is applied to treat inflammation, congestion, stuffiness in the abdomen, diarrhea, and stomachache.
Diseases Feeling of pressure in the chest, Vomitting, Full stomach, Diarrhea, Cough, High fever, Swelling and pain of the throat, Pyogenic dermatosis, Threatened abortion, Hematemesis, Nasal hemorrhage
Formulas unseiin , ogonkahangeshokyoto , ogonto , odoto , oren'akyoto , orengedokuto , otsujito , otsujitokyodaio , kagenryokakusan (asada) , kagenryokakusan (kyoteiken) , kakkon'oren'ogonto , kamigedokuto , karokijitsuto , kankyooren'ogon'ninjinto , kanzoshashinto , kanroin , keigairengyoto , gorinsan , saikatsugekito , saikatsutokasenkyushin'i , saikanto , saikyohangeto , saikokaboshoto , saikokaryukotsuboreito , saikokikitsuto , saikokeishikankyoto , saikokeishito , saikoseikanto , saisoin , saibokuto , saireito , san'osan , san'oshashinto , sammotsuogonto , shokyoshashinto , shosaikoto , shosaikotokakikyosekko , shozokumeito , shin'iseihaito , jijintsujito , junchoto , seikiankaito , seishitsuketanto , seishinrenshiin , seijokentsuto , seijobofuto , seihaito , senkanmeimokuto , daioorenshashinto , daisaikoto , daisaikotokyodaio , tokisan , nijutsuto , nyoshinsan , hangeshashinto , bushishashinto , hokikenchuto , hontonto (kinkiyoryaku) , bofutsushosan , ryutanshakanto , ryokakusan
Meridian tropism Heart, Lung, Gall bladder, Large intestine, Small intestine
Property Cold
Flavor Bitter
Classification in "Shen-non Ben-cao Jing" Middle
TCM: Classification Antipyretics (Drugs for elimination heat and dampness)
TCM: Medicinal effects To clear away heat and relieve dampness, purge the sthenic fire and detoxify, stop bleeding, prevent miscarriage.
Used for discomfort in the chest, nausea and vomiting in epidemic febrile disease caused by damp-heat or summer-heat, feeling of stiffness in the abdomen, acute dysentery or jaundice, cough due to heat in the lung, high fever with dire thirst, spitting of blood and epistaxis due to heat in the blood, carbuncle and sores, threatened abortion.
Remarks Listed in the Japanese Pharmacopoeia 18th ed.
New roots with a dense internal part are called Zigin (Tiaogin, Zhigin and Wanzhou). The apexes of the roots are called Jiangin. Sugin and Kugin are the old roots, partially rotted with hollows. The flakes are called Piangin or Pingshou.
References NI: N. Isshiki, Methods of Quality Evaluation and Preparation of Wakan-yaku, Tohodo Shoten, Tokyo, 1987.
DNA sequences of medicinal plants
Gene Region
Nuclear Chloroplast Mitochondria
Botanical source: Plant name 5Ss 18S ITS1 5.8S ITS2 26S others trnH-psbA matK trnK trnK-rps16 trnT-L trnL trnL-F rbcL rpoC1 ndhF others
Scutellaria baicalensis Georgi (IPNI:458155-1)


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University of Toyama
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