Bai Hua She (Agkistrodon, Bungarus)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Bai Hua She?

  Our record gives 3–10 g. In practice the standard references distinguish two preparations: the whole dried snake in decoction at roughly this range, and a much smaller powdered dose — commonly on the order of 1–1.5 g taken directly as powder — because grinding concentrates the material. It is also traditionally prepared in medicinal wine for chronic painful obstruction.

  • Decoction — 3–10 g of the processed dried snake, per our own record.
  • Powder — substantially lower than the decoction dose; powdered animal medicinals are dosed by a different scale and should not be substituted gram-for-gram for the decoction amount.
  • Medicinal wine — a long-standing traditional preparation for chronic wind-damp patterns.

  Note: published sources differ on the powdered dose because they are describing different snake species and different processing (see the naming question below). Where a source does not state which species and which preparation it means, the figure is not directly comparable. We give our own record’s decoction range as the anchor and describe the powder dose only in general terms.

  Source: our own herb record (3–10 g); published materia medica ranges cross-referenced against multiple online sources. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Bai Hua She?

  Yes — it is a toxic, strongly moving animal medicinal and is not a self-care herb. Our record classifies it as toxic and cautions against use, or advises extreme caution, in patients with yin deficiency, blood dryness, or where blood deficiency is generating internal wind — because a warm, drying, dispersing agent can worsen those patterns rather than help them. It should be used only under a qualified practitioner.

  • Pattern cautions — yin deficiency, blood dryness, blood-deficiency internal wind; heat patterns generally, given its warm nature.
  • Pregnancy — strongly moving, toxic-classified animal medicinals are conventionally avoided in pregnancy; discuss with a qualified practitioner.
  • Animal-derived (dietary/ethical reference note) — Bai Hua She is a whole dried snake. It is not suitable for vegetarians or vegans, and the animal source should be disclosed to patients who ask about ingredient origin. Some readers will also want to know before it appears in a patent formula under a Latin name.
  • Species substitution — because more than one snake is sold under this name and adulteration is documented (see research), the identity of a given batch cannot be assumed from the label alone.
  • Sourcing and legality — international trade in medicinal snakes is regulated and reported under CITES, and the species involved are under documented collection pressure. Legal status varies by country and by species; practitioners and buyers outside China should check local regulations before importing or dispensing snake-derived material.

  Source: our own herb record (toxic classification and pattern cautions); published materia medica consensus; adulteration and trade research cited below. Neutral reference disclosures, not usage instructions.

Chinese Herb Toxicity & Overdose

• Classified as toxic in the traditional literature. Our record lists toxicity as part of this herb’s nature, which in materia medica usage signals a restricted dose ceiling, professional supervision, and avoidance of prolonged or casual use — not necessarily acute poisoning at normal prepared doses.

  Two separate points are often conflated and should be kept apart:

  • The medicinal is not the venom. The material dispensed is the processed, dried snake body. Modern research on snake venom proteins (see research) studies isolated venom components, not the prepared medicinal, and its findings do not transfer to the dried herb.
  • Quality is the practical risk. Documented substitution with other snake species, and the general handling and storage issues of dried animal material, are the realistic safety concerns in commerce.

  Anyone considering an animal-derived, toxic-classified medicinal should do so only under a qualified practitioner.

  Source: our own herb record (toxic classification); published materia medica consensus; species-authentication research below. Reference note, not a safety guarantee and not a dosing instruction.

• This herb is considered toxic.
  (while some Chinese herbs are toxic, it must be noted that many come prepared, or are combined, to mitigate their toxicity)

Herb-Drug Interactions

• No well-established clinical herb–drug interactions are documented for the prepared medicinal. One precautionary flag is worth practitioner awareness: proteins isolated from the venom of the sharp-snouted pit viper have documented antithrombotic and anticoagulant activity in laboratory and animal studies (PMID 33773469; PMID 35408629). That research concerns isolated venom, not the dried processed snake used as a herb, and it is not evidence of a clinical interaction — but it is a reasonable reason for extra caution in patients on anticoagulant or antiplatelet therapy until the question is studied directly. (Precautionary; flagged for practitioner confirmation.)

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

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

• Which snake is Bai Hua She — Agkistrodon or Bungarus?

  Both names are in genuine use, for two different snakes, and our record deliberately holds both. Our pharmaceutical Latin reads “Agkistrodon Seu Bungarus” — literally Agkistrodon or Bungarus — reflecting that the Western TCM literature has long dispensed this heading against more than one species. In Chinese practice the two are normally kept distinct:

  • Qi She — the sharp-snouted pit viper, Deinagkistrodon acutus (older literature: Agkistrodon acutus). A viperid.
  • Jin Qian Bai Hua She — the many-banded krait, Bungarus multicinctus, dispensed as small coiled discs. An elapid, an entirely different family.

  A published pharmaceutical-analysis paper on a patent medicine containing both names them explicitly and separately in exactly this way — “Qi She (sharp-snouted pitviper, Deinagkistrodon acutus)” and “Jinqian Baihua She (many-banded krait, Bungarus multicinctus)” — confirming that the two are recognised as distinct crude drugs in Chinese pharmacy (PMID 34710727). The English name “Bai Hua She” has been applied to both, which is why our record carries the dual Latin rather than choosing one.

  Identity fields flagged for owner review (left unchanged): (1) our Chinese characters read 白化蛇, whereas our own English translations field gives “White Patterned Snake / White Flowered Snake,” which corresponds to 白花蛇 — the character 花 (huā, flower/pattern) rather than 化 (huà, transform). This looks like a character substitution and is reported, not corrected. (2) Our record does not currently carry a toxic/endangered marker, although this is an animal-derived medicinal from species under documented trade pressure. Both are owner decisions.

  Is Bai Hua She endangered or CITES-listed?

  Medicinal snakes traded internationally are covered by CITES reporting, and the trade is substantial. An analysis of official CITES trade data from 1975 to 2023 found China’s legal snake trade exceeded 11.7 million whole-organism equivalents, with the country shifting from a supply centre in the early 1990s to a consumption hub by 2012; wild-sourced and captive-bred supply chains both persist, and the authors identified misreported species in the official data (PMID 42278059; PMC 13255723). Separately, authentication researchers describe adulteration of Bungarus multicinctus with other species as driven by “large demand and resource starvation” (PMID 32372964; PMC 7186403). We do not state a specific CITES appendix or Red List category here, because listing differs by species and has changed over time — check the current listing for the specific species before making any sourcing or legal claim.

  Is there modern research on Bai Hua She?

  Most published work is on authentication and on isolated venom components, not on the prepared medicinal. There is little modern clinical research on the dried snake as used in Chinese medicine, so nothing here supports a therapeutic claim.

  • Species authentication — a multiplex ligation-dependent probe amplification assay was developed to identify Bungarus multicinctus alongside its common adulterants (Sinonatrix annularis, Xenochrophis flavipunctatus, Deinagkistrodon acutus and Naja atra) in a single test, and can estimate how much adulterant is present (PMID 32372964; PMC 7186403). A separate quantitative PCR method was built to measure how much Qi She (Deinagkistrodon acutus) a finished patent medicine actually contains (PMID 34710727). Both exist because substitution is a known market problem.
  • Venom pharmacology (not the medicinal) — proteins isolated from Deinagkistrodon acutus venom show antithrombotic and anticoagulant activity in laboratory and animal models (PMID 33773469; PMID 35408629), and peptides derived from Bungarus multicinctus have been reported to inhibit angiotensin-converting enzyme in vitro (PMID 41599695). These are isolated-compound studies on venom, not evaluations of the dried herb.
  • Related species — origin-identification work has likewise been published for commercially available Zaocys dhumnades (Wu Shao She), the milder snake medicinal (PMID 31090287).

  Human clinical evidence for the prepared medicinal is essentially absent. Treat the above as context on identity and quality control, not as efficacy or safety evidence.

  Sources: PMID 34710727 (Qi She and Jinqian Baihua She named as distinct crude drugs; qPCR quantification); PMID 32372964, PMC 7186403 (MLPA identification of Bungarus multicinctus and its adulterants); PMID 42278059, PMC 13255723, DOI 10.3390/ani16111624 (CITES-based analysis of China’s snake trade); PMID 33773469 and PMID 35408629 (Deinagkistrodon acutus venom proteins, preclinical); PMID 41599695 (Bungarus multicinctus-derived ACE-inhibitory peptides, in vitro); PMID 31090287 (Zaocys dhumnades origin identification). Research context, not a therapeutic claim.

Chinese Herb Notes

• Is Bai Hua She the same as Bai Hua She She Cao?

  No — and this is the single most important distinction on this page. Bai Hua She (“white-patterned snake”) is a dried venomous snake. Bai Hua She She Cao is a plant. The names look almost identical in pinyin, but they are unrelated medicinals with different categories, natures, channels and uses. Confusing them is a genuine safety issue, because one is a toxic animal medicinal and the other is a cooling herb.

  • Bai Hua She (this page) — a dried snake; sweet, salty, warm, toxic; Liver and Spleen channels; a wind-damp dispelling medicinal for chronic painful obstruction and internal wind.
  • Bai Hua She She Cao — “white-flowered snake-tongue grass,” the whole herb of Hedyotis / Oldenlandia diffusa; bitter, sweet, cold; Liver, Stomach and Large Intestine channels; a heat-clearing, toxin-resolving herb. Not an animal product, and not toxic in the same sense.

  Also nearby in pinyin, also unrelated: She Gan (Belamcanda rhizome, a bitter cold Lung herb for sore throat), She Chuang Zi (Cnidium fruit, a warm external-use seed), and She Xiang (deer musk, an aromatic orifice-opening substance). The syllable she is doing different work in each name — only Bai Hua She, She Tui (snake slough) and Wu Shao She are actually snake-derived.

  How does Bai Hua She differ from Wu Shao She?

  They occupy the same role but at different strengths. Wu Shao She (Zaocys, black-striped snake) is a non-venomous snake, described as sweet and neutral without toxicity, and is the milder, safer option for the same wind-damp and skin indications. Bai Hua She is the stronger, more penetrating, and more restricted choice. She Tui (snake slough) is different again — the shed skin, used mainly for skin conditions and childhood convulsions rather than for deep painful obstruction.

  Formula context: our own formula records do not currently link Bai Hua She to any formula, so no formula is named here.

  Source: our own herb records for Bai Hua She, Bai Hua She She Cao, Wu Shao She, She Tui, She Gan, She Chuang Zi and She Xiang (identity, nature, channels); published materia medica consensus for the comparisons. Disambiguation note, not treatment advice.

This herb is considered toxic