Imperata cylindrica var. major
- 1 Nomenclature
- 2 Historical Use of Imperata cylindrica var. major
- 3 Background
- 4 Pharmaceutical Information
- 5 Evidence or the Use of Imperata cylindrica var. major in the Treatment of Epilepesy
- 6 Safety
Historical Use of Imperata cylindrica var. major
Imperata cylindrica var. major in Traditional Chinese Medicine
Chinese Name (pinyin): Baimaogen
Chinese Name :
Common Name :Imperata Rhizome
Specific Name : Rhizoma imperatae
Collection : The drug is collected in spring and autumn, wash clean dried in the sun, removed from fibrous roots and membranous leaf sheath and tied up in small bundle.
Description : Long cylindrical, 30 - 60 cm long, 2 - 4 mm in diameter. Externally yellowish white or yellowish, slightly lustrous, longitudinally wrinkled, nodes distinct and slightly raised, internodes varying in length usually 1.5 - 3 cm long. Texture light, somewhat fragile, fracture white in bark, mostly with cracks arranged radially, stele yellowish, easily stripe from cortex. Odourless, taste slightly sweetish.
Identification : 1.Heat and reflux 5 g of the coarse powder with 30 ml of benzene for 1 hour and filter. Evaporate 5 ml of the filtrate to dryness, add 1ml of acetic anhydride to dissolve then add 1 - 2 drops of sulfuric acid, a red color is produced which gradually turns to violet red bluish violet and dirty green color at last.2.Boil 1 g of the coarse powder with 10 ml of water for 5 - 10 minutes, filter and concentrate the filtrate to 1 ml, add 1 ml of alkaline cupric tartarate TS, heat on a water bath, a brownish red precipitate is produced.Total ash: Not more than 5.0% (Appendix 1X K)
Processing : Wash clean, soften briefly, cut into sections, dry and sift.Rhizoma Imperatae (carbonized): Stir fry the sections as describe under the method of carbonizing by stir frying (Appendix ll D) until it becomes brown.
Action : To arrest bleeding by reducing heat in blood, to remove heat, and to cause diuresis.
Indication : spiting of blood, epistaxis and hematuria due to heat in the blood; febrile diseases with thirst; jaundice; urinary infection with difficult painful urination; edema in acute nephritis
Dosage : 9 to 30 g; 30 to 60 g of the fresh rhizome.
Storage : Preserve in a dry place.
Synonymns for Imperata cylindrica var. major
Patent Medicines and Medicines with Multiple Ingredients that include Imperata cylindrica var. major
Evidence or the Use of Imperata cylindrica var. major in the Treatment of Epilepesy
Cohort, Case-Control and Non-Randomized Trials
Randomized Controlled Trials
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