Jin Sha Teng - Japanese Fern

TCM Materia Medica

Jin Sha Teng TCM Herb Classifications and Usages

The TCM herb "jin sha teng" which in english is "japanese fern", is categorized within the "herbs that clear heat and relieve toxicity" functional grouping. It is thought to enter the small intestine and urinary bladder 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:

  • Whole plant 15-30 g.  
  • Sporangium 3-9 g.
  • Dry ripe spore 6-15 g.

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

  • Useful for damp heat patterns in the lower warmer, stones in the urine (damp-heat obstruction / painful urination).
  • Eliminate fire toxins - sore throat, mumps.
  • Useful in some cases of high fevers in infants.

Jin Sha Teng has some precautions to be considered (see our precautions list).

  • Avoid during pregnancy.

A single herb is not often thought of as an empirical way to influence a TCM diagnostic pattern. Jin Sha Teng, however, is a strong candidate to be considered when needing to influence bladder damp heat.

Jin Sha Teng may potentially be used, in coordination with a well tailored formula (in most cases), to influence the following conditions: fever, mumps, sore throat and/or urinary disorders (lin disease)

While it may not always be included depending on the manufacturer or herbalist making the formula, jin sha teng is generally included in the following 1 formula:

ViewSan Jin Wan (Triple Gold Pills)

Painful/burning or diffulty urination possibly with increased urgency due to damp heat accumulation. Dark or scanty urine. Urinary stones. Urinary tract infection.

As noted above, jin sha teng is within the herbs that clear heat and relieve toxicity functional group. All the herbs in this category are listed below.

(truncated intro "... toxins for the purpose of this categorization means fevers and other adverse effects of infectious diseases where patients are clinically sick. )".

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