Zi Cao - Groomwell Root, Lithospermum

TCM Materia Medica

Zi Cao TCM Herb Classifications and Usages

The TCM herb "zi cao" which in english is "groomwell root, lithospermum", is categorized within the "herbs that cool the blood" functional grouping. It is thought to enter the heart and liver channels and exhibits cold (han) and sweet (gan) taste/temperature properties.

Dosages and preparations will vary according to each individual and the overall approach of a formula, but generally this herb has the following dosage and/or preparation guidelines:

  • Dosage: 3-9g

Of many possible clinical applications, it may be considered to influence the following issues/symptoms:

  • Clears Heat, Cools the Blood, Relieves Fire Toxicity while Venting Rashes. Encourages rashes to surface, often for fire toxin with very dark purple rashes.
  • Topically. Clears damp heat, damp heat skin lesion, vaginal itching, burns.
  • Moisten Intestines, Unblock Bowels. Heat in the blood with constipation.

As noted above, zi cao is within the herbs that cool the blood functional group. All the herbs in this category are listed below.

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