Coix Seed

Source Coix Seed is the dried kernel of Coix lacrynajobi L. var. ma-yuen (Roman.) Stapf. (Fam. Gramineae).

Producing Areas Fujian, Hebei and Liaoning, etc.

Properties Sweet, Neutral, Slightly Cold

Channels Spleen, Stomach, Lung


  • Promotes urination
    For difficult urination and scanty urination due to dampness-heat.
  • Tonifies spleen-qi
    Aids in treating loose stool, lethargy, and low appetite.
  • Alleviates dampness and reduces swelling in arthritis
    Promotes diuresis, especially for edema of any etiology.
  • Treats Bi syndrome as well as relieves muscular cramps
  • Treats pulmonary and intestinal abscesses
    Relieves tightness in chest and aids in clearing phlegm.
  • Relieves phlegm
    For spleen deficiency when congested fluids move upward, with symptoms such as dizziness, palpitations, and a thick and greasy tongue coat.

Usage and Dosage
The crude is for resolving dampness and clearing away heat.
The stir-baked is for invigorating the spleen to stop diarrhoea.
9−30 g is used in decoction for oral use.
It can be prepared as gruel or soup and consumed as medicated diet.

Use with caution in the person deficient in bodily fluid.

Keep in a cool and dry place, and protect from moths.

Description of Quality Herb
The good one is big and full-grained, white in colour and not broken.

Professional Tips
Identifying Yiyiren and Fuling (Poria)
Similarities: Both are mild in nature, can eliminate dampness, strengthen the spleen, and treat spleen-deficiency syndrome with accumulation of dampness.
Differences: Yiyiren is often prescribed for pulmonary, intestinal abscess and carbuncle; it is good for expelling dampness from tendons and muscles, and for relieving Bi syndrome and draining the pus. Besides the similarities, Fuling is also for invigorating the heart and spleen, and tranquillising the mind.