Chuan Shan Jia (Anteater Scales, Pangolin Scales)

Chinese Herb Actions

Chinese Herb Dosage

• What is the dosage of Chuan Shan Jia, and can it still be prescribed?

  Chuan Shan Jia is not prescribed today, so no current dosage guidance is given. Pre-2020 materia medica commonly recorded roughly 3–9 g in decoction (or a smaller amount as powder); that figure is preserved here purely as a historical record of pre-Pharmacopoeia-removal practice, not as guidance for present use. For the traditional actions this herb once covered, see the Wang Bu Liu Xing, Lu Lu Tong, and Zao Jiao Ci monographs for their own current dosage information.

  Source: standard materia medica dosage ranges as historically documented (pre-2020), cross-checked against multiple professional TCM references. Historical record only — not a current recommendation or prescription.

Chinese Herb Contraindications & Cautions

• Is Chuan Shan Jia (pangolin scale) safe or legal to use today?

  No — Chuan Shan Jia should not be sourced or used. All eight pangolin species (four Asian, four African) were transferred to CITES Appendix I in 2016, effective January 2017, banning all international commercial trade. Pangolins are critically endangered and are widely documented as the world's most trafficked wild mammals, driven largely by demand for their scales in traditional medicine. In June 2020 China removed pangolin scales from the official Chinese Pharmacopoeia (citing exhaustion of wild resources) and simultaneously raised pangolins to first-class national protected status, its highest level of legal protection.

  • CITES Appendix I — all pangolin species, since January 2017; commercial international trade prohibited.
  • IUCN Red List — the Chinese pangolin (Manis pentadactyla, the species traditionally used for Chuan Shan Jia), the Sunda pangolin, and the Philippine pangolin are assessed Critically Endangered; the remaining species are Endangered or Vulnerable.
  • Removed from the Chinese Pharmacopoeia (2020) — pangolin scale is no longer an officially sanctioned medicinal material in China; independent research has since found no reliable evidence of a distinct clinical benefit (see Research).
  • Legal risk — possession, sale, or import of pangolin scale products is illegal or restricted in most jurisdictions outside a narrow, tightly regulated domestic Chinese stockpile system.

  What are the modern substitutes for Chuan Shan Jia?

  Wang Bu Liu Xing (Vaccariae Semen, cowherb seed) and Lu Lu Tong (Liquidambaris Fructus, sweetgum fruit) are the herbs most commonly cited to replace Chuan Shan Jia's channel-unblocking and lactation-promoting actions; Zao Jiao Ci (Gleditsiae Spina, honey locust thorn) is separately cited for its pus-expelling, swelling-reducing action on sores and abscesses. A 2020 survey of Chinese TCM practitioners found that 71% (20 of 28 doctors interviewed) agreed that pangolin scale could be substituted by other ingredients in at least some, if not all, of its traditional uses.

  Note: one systematic review of conservation literature cautions that promoting a substitute is not automatically safe for the substitute species either — when saiga antelope horn was promoted as a rhino-horn substitute, saiga populations subsequently underwent sharp declines — so substitute recommendations should still be evidence-based and monitored, not just assumed benign. Wang Bu Liu Xing, Lu Lu Tong, and Zao Jiao Ci are common plant-derived substances, not threatened species, which mitigates this concern here.

  Source: CITES Appendices (pangolin species Appendix I listing, effective Jan 2017); IUCN Red List species assessments; WildAid and CNN reporting on China's 2020 Pharmacopoeia revision; DOI 10.1002/pan3.10150 (Wang, Turvey & Leader-Williams, People and Nature, 2020, TCM-doctor substitution survey); DOI 10.1111/gcb.16425 / PMID 36074067 (Wang, Turvey & Leader-Williams, Global Change Biology, 2022, substitute-species caution). Neutral reference disclosure, not advocacy; not medical advice.

Chinese Herb Toxicity & Overdose

• No distinct toxicity is attributed to pangolin scale itself in materia medica sources — it is a keratin-based animal material, structurally similar to other keratinous substances (e.g., horn, nail). The substantive modern safety issues are not pharmacological but legal and evidentiary: possession/trade is restricted or illegal in most jurisdictions under CITES Appendix I, and a 2021 systematic review found no reliable clinical evidence to support its use at all, meaning any use today carries legal and conservation risk without a demonstrated offsetting benefit. Market samples are also vulnerable to species substitution/fraud given the restricted genuine supply.

  Source: PMID 32837905 / DOI 10.1016/j.imr.2020.100486 (Jin et al., systematic review, Integrative Medicine Research, 2021: "no reliable evidence" for clinical value); CITES Appendix I status. Reference note, not a safety guarantee.

Herb-Drug Interactions

• No clinical herb–drug interaction data exist for Chuan Shan Jia. The 2021 systematic review of available studies found the evidence base for pangolin scale too limited and methodologically weak to support even its core clinical claims, so there is no reliable body of research from which interaction data could be drawn. This is a reference gap, not a documented safety record, and is moot in practice given the substance's CITES/legal status. (Not applicable to current practice.)

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 Chuan Shan Jia (Squama Manitis) or on its conservation status?

  Yes — recent research is split between (1) evaluating the herb's own evidence base, which was found insufficient to justify continued use, and (2) documenting the conservation and trade-regulation crisis driving the species toward extinction.

  • No reliable evidence of clinical value (2021). A systematic review searching six databases (PubMed, Embase, Cochrane Library, CNKI, WanFang, SinoMed) through May 2020 identified only 15 eligible studies (4 randomized controlled trials, 1 case-control, 3 case series, 7 case reports), most with significant methodological bias. The authors concluded there is no reliable evidence for the clinical value of Squama Manitis and that its removal from the Chinese Pharmacopoeia was rational.
  • TCM-practitioner attitudes toward substitution (2020). A survey of 28 TCM doctors plus TCM shop staff and members of the public in Henan and Hainan provinces found 71% of doctors believed pangolin scale could be substituted by other ingredients in at least some uses, and identified the TCM community as a key, previously overlooked partner for reducing illegal trade.
  • Regulatory gaps in the legal trade (2022). A review of China's TCM trade regulation found pangolin scale remained an ingredient in patent medicines even after the 2020 Pharmacopoeia delisting, that stockpile trade data is largely unpublicized, that the share of shops selling illegal pangolin products had not meaningfully declined over the prior decade, and that scales entering the legal market are not reliably verified to species level.

  Bottom line: the modern evidence base does not support a distinct clinical benefit for pangolin scale, while conservation research documents an active, only partially regulated trade in a critically endangered, CITES Appendix I group of species. Research context only, not a treatment claim.

  Sources: PMID 32837905 / DOI 10.1016/j.imr.2020.100486 (Jin et al., systematic review, Integrative Medicine Research, 2021); DOI 10.1002/pan3.10150 (Wang, Turvey & Leader-Williams, People and Nature, 2020); PMID 36074067 / PMC 9826198 / DOI 10.1111/gcb.16425 (Wang, Turvey & Leader-Williams, Global Change Biology, 2022). Research context, not a therapeutic claim.

Chinese Herb Notes

• How does Chuan Shan Jia compare with the herbs now used in its place?

  Chuan Shan Jia was classified among the "Herbs that Invigorate Blood and Remove Stagnation," prized for an unusually penetrating, channel-opening quality — classical sources describe it as reaching every part of the body to unblock stasis. Its two most-cited modern replacements each cover part of that range rather than reproducing it exactly.

  • Wang Bu Liu Xing (Vaccariae Semen) — the substitute most consistently named for both the blood-invigorating/menses-unblocking action and the lactation-promoting action; historically already used alongside Chuan Shan Jia for difficult lactation, which is part of why it transferred over so directly.
  • Lu Lu Tong (Liquidambaris Fructus) — cited for the channel-unblocking and lactation-promoting actions, and separately carries its own traditional use for wind-damp painful obstruction.
  • Zao Jiao Ci (Gleditsiae Spina) — the herb most specifically cited for the swelling-reduction/pus-expulsion action on sores and abscesses, rather than the blood/lactation actions.

  No single substitute is a one-to-one replacement; practitioners today select among these (and other blood-invigorating or channel-opening herbs) according to which specific traditional action of Chuan Shan Jia is relevant to the pattern being addressed.

  Source: Sacred Lotus category classification ("Herbs that Invigorate Blood and Remove Stagnation"); standard materia medica consensus on substitute herbs, cross-checked against multiple professional TCM references. Historical/comparative framing only.

This herb is from an endangered/protected species and is illegal in the United States