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Wa Leng Zi (Cockle Shell, Ark Shell)

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Neutral Wa Leng Zi (Concha Arcae Inflatae)
Sweet, Salty, Neutral
Concha Arcae Inflatae
Tone Marks:
wă lèng zĭ


  • Invigorates Blood, Dissolves Phlegm, Softens Hardness, Disperses Nodules
    For fixed or mobile abdominal masses due to blood stasis, stagnant Qi, or phlegm accumulation. Also treats scrofula and goiter, menstrual pain, chronic cough and phlegm, hepatomegaly, and splenomegaly
  • Absorbs Acid, Relieves Pain
    Treats acid reflux, gastric and duodenal ulcers, chronic pain in the stomach with vomiting and acid regurgitation.

Contraindications and Cautions

  • None Noted

Herb-Drug Interactions

  • This section is being researched, and is not completed.

Toxicity and Overdose

  • Only one case of allergic reaction is noted


  • 9-30 grams in decoction, 1-3 grams in powder/pill (Bensky)
  • 10-30 grams in decoction, 1-3 grams in powder/pill (Chen)


  • Should be cooked long time for maximum extraction of active components