  
Chinese Name |
Mahuang |
Latin |
Herba Ephedrae |
English Name |
Ephedra |
Key Characteristics |
Acrid-warm herb that releases the exterior |
Source |
Dried herbaceous stem of Ephedra sinica Stapf, Ephedra intermedia Schernk et C. A. Mey.or Ephedra equisetina Bge(Fam.Ephedracease).
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Property, Flavor and Meridians Entered |
Acrid, slightly bitter,warm; Lung, Bladder
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Actions |
To induce perspiration to expel cold, ventilate the lung to relieve asthma, and induce excretion of urine to alleviate edema |
Indications |
Common cold due to wind-cold, chest distress, dyspnea and cough, wind edema. In addition, used for bronchial asthma, sinus bradycardia, hemorrhage of the upper digestive tract, acute renal failure and toothache
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Special Usage |
Unprocessed ones are used to induce perspiration to release the exterior,and that processed with honey is used to relieve cough and asthma.
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Precaution |
Use with caution to those who are debilitated, those with spontaneous sweating from exterior deficiency, those with night sweats from yin deficiency, and those with yang hyperactivity due to yin deficiency.
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Chemical Composition |
It mainly contains ephedrine, a little d-pseodo-phedrine, volatile oil, flavanoid, and ephedran.
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