Tian Zhu Huang (Siliceous Secretions of Bamboo, Bamboo Sugar, Tabasheer)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Tian Zhu Huang?

  3–6 g in decoction (Chen & Chen) or 3–9 g (Bensky), and 0.6–1 g when taken as a powder. Both reference ranges are held on this record and they agree closely; the powdered dose is much smaller because the material is taken directly rather than extracted into water.

  • Decoction — 3–9 g, within the range of an ordinary dried herb. This is one of the practical differences from Zhu Li (bamboo sap), which is dosed at 30–60 g because it is mostly water.
  • Powder — 0.6–1 g. The classical paediatric preparations that use it are pills and powders rather than decoctions, which is consistent with the very small powdered dose.
  • Part used — the concretion itself, collected from the internodes of the bamboo stem and dried. There is no leaf, root or bark involved.
  • Practical note on the material — because it is a mineral-like concretion rather than a soft plant part, it is normally supplied already broken or powdered.

  Source: Sacred Lotus sources & references (both recorded reference ranges and the powdered dose, as held on file); comparison with the recorded Zhu Li dosage. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Tian Zhu Huang?

  No traditional contraindication is recorded for this herb on its own — the entry held here reads “none noted” — but the category cautions apply, and the context in which it is used deserves more attention than the herb itself does. It is a cold, phlegm-cooling substance, so it is not aimed at cold-type phlegm.

  • Cold phlegm or a cold cough — not indicated. Copious clear or white sputum that is worse for cold is the opposite of the phlegm-heat pattern this herb addresses.
  • Spleen and Stomach cold with loose stools — the standard caution for cold, phlegm-cooling herbs. Tian Zhu Huang is regarded as gentler here than the very cold bamboo sap, which is part of why it is preferred in children.
  • Convulsions in a child are a medical emergency. This is a reference note about the setting, not a caution about the herb: the classical indication — a convulsing, feverish or unresponsive child — describes a situation requiring immediate conventional medical assessment. The traditional indication is documented here as a reference fact and is not an instruction for use.
  • About Hui Chun Dan — the formula this herb appears in also contains Zhu Sha (cinnabar) and She Xiang. Cinnabar is a mercury sulfide mineral and is a restricted substance in many jurisdictions; She Xiang is derived from a protected animal. That is a fact about the classical formula, recorded neutrally, not a recommendation to prepare or take it.
  • Material variability — elemental analysis of commercial batches has found real variation between sources (see research). Provenance matters for a mineral-like article more than for a leaf.

  Source: Sacred Lotus sources & references (recorded cautions entry, and the Hui Chun Dan composition as held on file); category cautions per materia medica consensus, cross-referenced against multiple online sources; batch variability per PMID 39701733, DOI 10.19540/j.cnki.cjcmm.20240713.103. Reference note, not a safety guarantee.

Chinese Herb Toxicity & Overdose

• Is Tian Zhu Huang toxic?

  No toxicity is recorded for Tian Zhu Huang — the entry held here reads “none noted,” it is not classed among the toxic materia medica, and no poisoning reports for the substance were found in the sources that could be verified. It is an inert-seeming siliceous concretion given in small doses, and there is no established toxic threshold in the literature.

  • What it is chemically — largely biogenic silica, with a small mineral and organic fraction. An inductively-coupled-plasma study of commercial batches detected 25 inorganic elements and quantified thirteen, with potassium, iron and sodium highest by average content; the paper’s stated purpose was to lay groundwork for quality evaluation and safe application, which is an honest indication of how early this work still is.
  • Batch variation is the real issue, not intrinsic toxicity — the same study found the content of boron, sodium, aluminium, calcium, iron and barium varied between batches from different origins, and identified copper, arsenic and manganese as the elements that best distinguished sources. Trace arsenic in a mineral-derived article is a routine quality-control concern for any such material and is noted here as a neutral reference fact.
  • The absence of reported toxicity is not a formal safety evaluation. No clinical safety study of this herb exists in the literature that could be confirmed.

  Source: Sacred Lotus sources & references (recorded toxicity entry, “none noted”); elemental composition and batch variation per PMID 39701733, DOI 10.19540/j.cnki.cjcmm.20240713.103. Neutral reference facts — not a safety guarantee.

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Tian Zhu Huang (Bambusae Concretio Silicea)?

  Very little on its traditional indications, and a surprising amount on the material itself — because tabasheer has become a feedstock for materials chemistry. There are no clinical trials of this herb, and no animal study of it for convulsions or cough that could be verified. What does exist splits into two strands: Chinese pharmacognosy work on identity and quality, and Western nanomaterials work that uses tabasheer as a source of biogenic silicon.

  • Identity and quality control — a 2023 textual study reconstructed the herb’s nomenclature and indications through the classical literature and found the recorded medicinal properties broadly consistent since Ri Hua-zi’s Materia Medica, while noting that the classical texts say almost nothing about grading quality. A 2024 elemental fingerprinting study established a 25-element profile across commercial batches, and a companion study assessed the article’s amino-acid content. This is groundwork for standardisation rather than pharmacology.
  • Tabasheer as a silicon source (materials science) — because bamboo is a silicon-accumulating plant, the concretion is unusually pure biogenic silica, and several groups have used it as a green feedstock for porous silicon. Researchers have made mesoporous silicon from tabasheer by calcination followed by magnesiothermic reduction, then loaded it with plant extracts as a sustained-release drug carrier; used it to stabilise garlic-derived allicin against degradation; and co-reduced it with iron oxide to make biodegradable iron silicide nanoparticles for photothermal cancer research in mice. None of this is about the herb’s traditional use — but it is a striking confirmation that the substance really is what its Latin name says it is.
  • As a formula ingredient — the herb is the first-named component of the Tibetan formula Sanchen powder, whose antibacterial activity was investigated by network pharmacology with in vitro validation in 2024. The compounds the authors traced into the blood and identified as antibacterial came from the formula’s other two ingredients, not from the bamboo concretion.

  Honest summary: the paediatric and anticonvulsant reputation of this herb is entirely traditional. Nothing above tests it, and none of it should be read as a treatment claim.

  Sources: PMID 38212039, DOI 10.19540/j.cnki.cjcmm.20230903.101 (textual research on the herb’s names, properties and quality standards); PMID 39701733, DOI 10.19540/j.cnki.cjcmm.20240713.103 (25-element analysis of commercial batches); PMID 38812193, DOI 10.19540/j.cnki.cjcmm.20240119.101 (amino-acid content); PMID 38417599, DOI 10.1016/j.jep.2024.117981 (source species, and Sanchen powder network pharmacology); PMID 27684478, PMC 5042556, DOI 10.1371/journal.pone.0163270 (porous silicon fabricated from tabasheer as a drug carrier); PMID 29111753, DOI 10.1021/acs.molpharmaceut.7b00638 (tabasheer-derived porous silicon stabilising a natural therapeutic); PMID 31459924, PMC 6648573, DOI 10.1021/acsomega.9b00127 (tabasheer-derived mesoporous silicon microcarriers); PMID 37082912, DOI 10.1039/d2tb02399g (iron silicide nanoparticles from biogenic tabasheer). Research context, not a therapeutic claim.

Chinese Herb Notes

• What is the difference between Tian Zhu Huang, Zhu Ru and Zhu Li?

  Three medicinals, one plant genus, three completely different substances: a shaving, a liquid, and a stone-like concretion. All three are cooling phlegm herbs, all three are held here as separate records, and they are not interchangeable. This entry completes the trio.

  • Zhu Ru (竹茹, bamboo shavings, Bambusae Caulis in Taeniam) — sweet, slightly cold; Gallbladder, Lung, Stomach. Shaved strips of the culm; the mildest and the most routinely prescribed. The everyday choice for phlegm-heat cough, Stomach-heat nausea and vomiting, and Gallbladder-heat irritability and insomnia.
  • Zhu Li (竹沥, bamboo sap, Bambusae Succus) — sweet, very cold; Heart, Lung, Stomach. The liquid driven out of heated fresh culms. The strongest and coldest of the three, reserved for severe phlegm-heat: wind-stroke with loss of speech, seizures, sudden loss of consciousness. Stirred into a finished decoction at 30–60 g.
  • Tian Zhu Huang (天竺黄, this herb, Bambusae Concretio Silicea) — sweet, cold; Gallbladder, Heart, Liver. The silica-rich concretion from inside the stem nodes. The only one of the three that enters the Liver channel, which is the reason it is the convulsion-and-spirit herb of the group. Dosed like a normal herb at 3–9 g, or 0.6–1 g as powder.

  The shortest version: shavings for the ordinary case, sap for the emergency, concretion for convulsions and the spirit. Only Zhu Ru enters Gallbladder and Stomach together; only Zhu Li is very cold; only Tian Zhu Huang enters the Liver. In paediatric practice the choice between the sap and the concretion is largely one of intensity and of handling — the concretion is dispensed and swallowed like any other herb, the sap has to be sourced as a bottled liquid.

  Where does Tian Zhu Huang actually come from?

  It is a secreted mass that hardens inside the hollow stem of certain bamboos. The ethnopharmacology literature describes the article precisely: the dried mass of secreted fluid in the stalks of grasses such as Bambusa textilis McClure or Schizostachyum chinense Rendle. Bamboos are silicon-accumulating plants, and the concretion is the visible result of that accumulation.

  • Two accepted source species — Bambusa textilis and Schizostachyum chinense, rather than a single plant.
  • The old names — a 2023 textual study of the herbal literature found the substance recorded under several names before the current one settled: Zhu Huang, Zhu Gao and Zhu Tang among them, with the earliest formal use of the name Tian Zhu Huang traced to Ri Hua-zi’s Materia Medica. The same study notes that quality-grading criteria for it were barely described in the classical texts — a gap modern quality control is still filling.
  • In Tibetan medicine — the same substance is the first-named ingredient of Sanchen powder, a three-ingredient Tibetan formula completed by safflower and a bovine gallstone preparation.

  English-name note flagged, not corrected: the common names held on this record include “Bamboo Sugar.” The substance is not a sugar — the recorded Latin (Concretio Silicea) and the modern literature both describe a siliceous concretion. “Bamboo sugar” appears to be an old descriptive gloss based on the pale, glassy appearance of the material rather than on its composition. The name field has been left exactly as held and is flagged here for review rather than changed.

  What formulas contain Tian Zhu Huang?

  The formula held here that uses it is Hui Chun Dan (Return of Spring Special Pill) — and its recorded pattern is a near-perfect statement of what this herb is for: phlegm-heat obstructing the Heart orifices with internal Liver wind, that is, acute infantile convulsion. Tian Zhu Huang sits in that formula alongside Dan Nan Xing, Chuan Bei Mu and Ban Xia on the phlegm side and Gou Teng, Tian Ma, Quan Xie and Jiang Can on the wind side. (Traditional formula context, not treatment advice — and see the cautions note about that formula’s other ingredients.)

  Source: Sacred Lotus sources & references (the herb records for Zhu Ru, Zhu Li and Tian Zhu Huang — nature, flavour, channels and dosages — and the Hui Chun Dan formula record, as held on file); cross-referenced against multiple online sources and materia medica consensus (Bensky, Materia Medica 3rd ed.); source species and description of the article per PMID 38417599, DOI 10.1016/j.jep.2024.117981; nomenclature and textual history per PMID 38212039, DOI 10.19540/j.cnki.cjcmm.20230903.101.