Individual Herbs Notebook

Ze Xie

Pharmaceutical: Rhizoma Alismatis
Taxonomy: Alisma plantago-aquatica seu orientale

Other names: Water Plantain Rhizome

Category: Herbs that Drain Dampness



Properties: Sweet, bland, cold

Meridans Entered:
Primary: Kidney and Bladder
Divergent Zones: Taiyang
Divergent Channels: Bladder, Kidney
Extraordinary Vessels: Yin Qiao


Traditional Actions/Indications:
  1. Promotes urination and leaches out Dampness
    Stagnation due to Dampness with urinary difficulty, painful urinary dysfunction, diarrhoea and dizziness
    Especially useful for Damp-Heat in the Lower Jiao
  2. Settles Ministerial Fire in the Kidneys by draining Damp-Heat from the lower Jiao
    Spermatorrhea due to Damp-Heat in the Lower Jiao disturbing the ministerial Fire of the Kidneys
  3. Drains Kidney Fire
    Kidney Yin Deficiency with Fire Rising
  4. Aids fasting
    Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, sharpen the ears and eyes, make one free from hunger, prolong life, make the body light, render the face brilliant, and enable one to walk over water. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Suggested Daily Dosage: 4.5-15g in decoction. Sometimes up to 30g in extreme cases.


Cautions: Overdose, extended use or combination with diuretic drugs could cause electrolyte imbalance due to diuretic effect.


Appears in 65 formulae listed on this site: (click to display)
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