How does She Gan work to treat sore throat?

She Gan (Belamcanda chinensis) contains active isoflavonoid compounds including tectoridin, irigenin, and mangiferin that exert anti-inflammatory effects on respiratory tissues. These compounds help reduce throat inflammation and clear heat-toxins according to Traditional Chinese Medicine principles. The herb also promotes phlegm resolution, making it effective for respiratory conditions involving phlegm-heat patterns. Evidence level: C (preclinical and traditional use support).

Is She Gan safe to take during pregnancy?

No, She Gan is contraindicated during pregnancy and should be avoided. Traditional Chinese Medicine classifies this herb as unsafe for pregnant women due to its heat-clearing and toxin-resolving properties, which may stimulate uterine activity or affect fetal development. She Gan is also contraindicated in cases of Spleen cold deficiency. Women who are pregnant or nursing should not use this herb. Evidence level: Traditional.

What is the recommended dosage for She Gan rhizome?

The standard adult dosage for She Gan (Belamcanda chinensis) is 3-9 grams of dried rhizome daily, typically prepared as a decoction. Dosage may vary based on individual constitution and condition severity. This herb should only be used under guidance from a qualified practitioner trained in Traditional Chinese Medicine. Self-medication is not recommended. Evidence level: C (traditional pharmacopoeia standards).

Does She Gan interact with any medications?

Limited clinical data exists on She Gan drug interactions. Due to its anti-inflammatory isoflavonoid compounds, theoretical interactions with immunosuppressants, anticoagulants, or anti-inflammatory medications may exist. Patients taking prescription medications should consult a qualified healthcare provider before using She Gan. Always disclose all herbal supplements to your healthcare provider to avoid potential interactions. Evidence level: C.

What are the side effects of She Gan?

She Gan may cause gastrointestinal upset and nausea, particularly when taken in excessive doses. These side effects are more likely in individuals with Spleen cold deficiency, who should avoid this herb entirely. Adhering to the recommended dosage range of 3-9 grams daily and using the herb under professional guidance minimizes adverse effects. Evidence level: Traditional.

She Gan Rhizome (Belamcanda chinensis)

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

She Gan Rhizome (Belamcanda chinensis) is a perennial herb from the Iridaceae family used in East Asian traditional medicine for respiratory and inflammatory conditions [PMID:27032710, PMID:26347953, PMID:41375398].

Background

Belamcanda chinensis (L.) DC is a perennial herb primarily found in Northeast Asia, including China, Japan, Korea, and India [PMID:27032710, PMID:41375398]. It is the sole species in the genus Belamcanda and is closely related to the genus Iris [PMID:27032710, PMID:33628873].

Traditional uses

Traditionally used in Chinese, Japanese, and Korean medicine as an antipyretic, antidote, expectorant, antiphlogistic, and analgesic [PMID:27032710]. It is specifically recognized for clearing heat, detoxifying, eliminating phlegm, and soothing the throat [PMID:41375398, PMID:38754643].

Active compounds

The rhizome contains polyphenols (isoflavones, xanthone glycosides, stilbenes, simple phenols, and quinones), triterpenoid iridals [PMID:26347953], and specific compounds such as tectoridin and tectorigenin [PMID:42198377, PMID:37581303]. Other identified components include sucrosephenylpropanoid esters [PMID:38185009] and nor-sesquiterpenoids [PMID:38019684].

Mechanism of action

Tectorigenin acts as a selective estrogen receptor modulator by binding to ERalpha and ERbeta receptors [PMID:15330494]. In bladder cancer cells, tectorigenin induces ferroptosis by targeting EGFR [PMID:41177012]. Extracts have been shown to inhibit non-small cell lung cancer proliferation by inhibiting the MAPK (Ras/Raf) and Akt pathways [PMID:39229537].

Clinical evidence

Evidence DNon-small cell lung cancer (NSCLC)

Extract inhibited proliferation and induced apoptosis in SPC-A1 and NCI-H460 cells and in vivo xenograft models [PMID:39229537]

Evidence DBladder Cancer

Tectorigenin inhibited tumor growth and decreased Ki67 levels in 5637 cell xenograft models, showing effects similar to cisplatin [PMID:41177012]

Evidence DHyperglycemia/Obese Diabetes

Leaf extract (component F2) alleviated hyperglycemia and insulin resistance in KK-Ay mice by inhibiting hepatic gluconeogenesis [PMID:30530047]

Evidence DTriple-Negative Breast Cancer

Iridal-type triterpenoid (compound 9) inhibited cell metastasis and induced G1 phase cell cycle arrest in 4T1 and MDA-MB-468 cells [PMID:37375271]

Evidence DMenopausal Hot Flushes

Tectorigenin inhibited pulsatile pituitary LH secretion in ovariectomized rats [PMID:15330494]

Safety & adverse effects

Tectorigenin showed no significant organ damage or toxicity in bladder cancer xenograft models [PMID:41177012]. General toxicology is mentioned as a subject of review, but specific adverse effects in humans are not detailed in the provided abstracts [PMID:27032710, PMID:38754643].

Evidence summary

The current evidence is primarily based on in vitro cell studies and in vivo animal models (Level D), with several comprehensive reviews (Level C) summarizing its phytochemistry and traditional uses. There are no human clinical trials (Level B) or meta-analyses (Level A) provided.

PubMed sources

1.PMID: 27032710 (2016) — Belamcanda chinensis (L.) DC-An ethnopharmacological, phytochemical and pharmacological review. · Journal of ethnopharmacology
2.PMID: 26347953 (2015) — Belamcandae chinensis rhizome--a review of phytochemistry and bioactivity. · Fitoterapia
3.PMID: 29510567 (2018) — Phenolic Compounds from Belamcanda chinensis Seeds. · Molecules (Basel, Switzerland)
4.PMID: 41375398 (2025) — Traditional Uses, Phytochemistry, Pharmacology, and Toxicology of Belamcanda chinensis: A Review. · Plants (Basel, Switzerland)
5.PMID: 18058385 (2008) — Chemical constituents from Belamcanda chinensis. · Journal of Asian natural products research

She Gan Rhizome

Sources & Citations