Official name: Codonopsis Radix
English name: Tangshen
Scientific name: Codonpsis pilosula (Franch.) Nannf., Codonopsis pilosula Nannf. var. modesta (Nannf.) L. T. Shen or Codonopsis tangshen Oliv.
Chinese name: 黨參
Chinese phonetic name: Dangshen
Dried root of Codonpsis pilosula (Franch.) Nannf., Codonopsis pilosula Nannf. var. modesta (Nannf.) L. T. Shen or Codonopsis tangshen Oliv. (Fam. Zingiberaceae). 
Place of origin
Tangshen mainly produced in Shanxi, Shaanxi, Gansu etc. 
Tangshen is sweet in flavor, neutral in nature, and mainly manifests its therapeutic actions in the spleen and lung meridians. 
Major Chemical Constituents
Major active components in Tangshen include saccharides, glycosides, sterol, coumarins and triterpene etc. 
Drug actions in TCM
Tangshen fortify the spleen, replenish lung, nourish blood and engender body fluids.
Traditional Uses in TCM
Traditionally, Tangshen is used to treat hypofunction of the spleen and the lung; dual deficiency of qi and blood; dual deficiency of qi and yin etc.
Tangshen can tonify spleen qi and lung qi
Tangshen is sweet in flavor and neutral in nature, mainly manifests its therapeutic actions in the spleen and lung meridians. Tangshen can tonify spleen and lung qi. Using for deficiency of middle qi, body weakness, loss of appetite, sloppy stool; cough, shortness of breath and faint low voice caused by lung deficiency. Used as ginseng’s alternative in clinical treatment of qi deficiency of the spleen and lung qi,.
The pharmacological actions associated with tonifying spleen and lung qi may be due to the function of promote intestinal absorption, regulate the spasm of digestive tract smooth muscle, improve the ventilation function of the lung, enhance cardiac function and enhance anti-fatigue and hypoxia tolerance.
Tangshen can tonify qi and nourish blood
Tangshen can be used for person with pale or sallow complexion, fatigue, dizziness, palpitations etc., which caused by blood deficiency or qi deficiency.
Modern search found that the Tangshen can improving blood rheology and microcirculation, reduce the index of erythrocyte sclerosis and promote hematopoietic function, which may be related to the qi and blood function in traditional use.
Tangshen can tonify qi and engender fluid
Commonly used for mild situation of thirst and shortness of breath due to exuberant heat damaging fluid or qi deficiency pattern fluid depletion.
Reinforce the healthy qi and eliminate the pathogenic factors
Tangshen can reinforce the healthy qi and eliminate the pathogenic factors, prescribe with exterior-releasing medicinal, offensive purgative medicinal etc. Using for pattern of qi deficiency with external contraction and interior excess pattern with interior deficiency.
The immune function enhancing function and antibacterial antiviral effect may be related to the mechanism of Reinforce the healthy qi of Tangshen.
Studies showed that Tangshen has effects like promote the secretion of adrenocorticotropic hormone (ACTH), enhance adrenocortical function, enhance immune function, anti-stress, cardiotonic action, dual modulation of blood pressure, enhance hematopoietic function, adjust gastrointestinal motility, hypoxia tolerance, enhance learning and memory ability, anti-fatigue , sedative, anticonvulsant effect, anti-bacterial, anti-inflammatory etc. 
Administration and dosage
Incompatible with Rhizoma et Radix Veratri.
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