Stemonona tuberosa (Stemona tuberosa): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Stemona tuberosa work to treat coughs and parasites?

Stemona tuberosa contains alkaloid compounds, primarily stemonine and tuberostemonine, which provide its therapeutic effects. These alkaloids suppress the cough reflex through action on the central nervous system, making it an effective antitussive. For parasitic infections, the alkaloids cause paralysis in parasites by affecting their neuromuscular function. The herb also demonstrates antifungal and antibacterial properties in laboratory studies, supporting its traditional use for respiratory infections and external applications for skin parasites. (Evidence Level: C, Traditional)

Is Stemona tuberosa safe to take during pregnancy?

Stemona tuberosa is contraindicated during pregnancy and should be strictly avoided. The alkaloid compounds present in the root can cross the placenta and may harm fetal development. Traditional Chinese medicine texts explicitly warn against use in pregnant women. Breastfeeding women should also avoid this herb, as compounds may pass into breast milk. Children should not be given Stemona tuberosa due to potential alkaloid toxicity. Pregnant women seeking treatment for coughs or parasites should consult a qualified healthcare provider for safer alternatives. (Evidence Level: D, Traditional)

What is the recommended dosage for Stemona tuberosa?

Traditional dosage recommendations for Stemona tuberosa (Bai Bu) are 3-9 grams of dried root per day prepared as a tea or decoction. For tincture preparations, 2-3 milliliters taken three times daily is the standard recommendation. These dosages are based on traditional Chinese medicine practice rather than clinical trials. Users should start with lower doses to assess tolerance, as individual sensitivity to alkaloids varies. For external use on skin parasites, concentrated preparations may be applied topically. Always follow guidance from a qualified practitioner. (Evidence Level: Traditional)

Does Stemona tuberosa interact with any medications?

There is limited clinical research on specific drug interactions with Stemona tuberosa. Due to its alkaloid content and effects on the central nervous system, theoretical interactions may exist with CNS depressants, antitussive medications, and antiparasitic drugs. The herb may affect liver enzyme activity, potentially altering the metabolism of certain medications. Patients taking prescription medications should consult a healthcare provider before using Stemona tuberosa. The lack of formal interaction studies warrants caution when combining with pharmaceutical treatments. (Evidence Level: D)

What are the side effects of Stemona tuberosa?

Common side effects of Stemona tuberosa include nausea and gastrointestinal discomfort, particularly when taken at higher doses. The alkaloid content can cause toxicity symptoms if consumed excessively, including dizziness, headache, and in severe cases, respiratory depression or neurological effects. Overdose may lead to serious adverse reactions. To minimize risks, users should adhere strictly to recommended dosages and discontinue use if significant side effects occur. Long-term use is not recommended without professional supervision. Seek medical attention if symptoms of toxicity develop. (Evidence Level: C, Traditional)

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

Stemona tuberosa is a perennial herb of the Stemonaceae family used extensively in traditional medicine in China and South Asian regions [PMID:35295975, PMID:33898747].

Background

Stemona tuberosa (also known as Baibu) is a medicinally important perennial herb [PMID:33898747, PMID:42049773]. Its root tubers are recognized by the Pharmacopoeia of the People's Republic of China as an authentic source of Radix Stemonae [PMID:16750339].

Traditional uses

It has been widely used as a traditional medicine in China and South Asian regions [PMID:35295975] to treat respiratory diseases such as cough and tuberculosis [PMID:37532076], as well as scabies and eczema [PMID:39426768]. It is also recognized for traditional applications as an anti-cancer agent [PMID:40159570].

Active compounds

The plant contains a diverse array of compounds including alkaloids (stenine-type, stemoninine-type, and tuberostemoamide-type) [PMID:16750339, PMID:16872143, PMID:32224153], stilbenoids (stemobenoids A and B) [PMID:32713205], phenolic constituents and furfural derivatives [PMID:37614210], bibenzyls [PMID:7766165], iminosugars (such as alpha-homonojirimycin) [PMID:16124768], and polysaccharides [PMID:38542983, PMID:39426768].

Mechanism of action

Specific compounds act through various pathways: neotuberostemonine inhibits osteoclastogenesis by blocking the TRAF6 and NF-κB activation [PMID:30439408]; tuberostemonine may alleviate pulmonary fibrosis by enhancing the SLC7A11/glutamate antiporter to restrain ferroptosis [PMID:37532076]; and methyl ferulate inhibits the release of cytokines and NO generation in macrophages [PMID:25312145].

Clinical evidence

Evidence DCough/Asthma

Stenine-type alkaloids (neotuberostemonine and neostenine) and stemoninine-type alkaloids (bisdehydrostemoninine) showed significant antitussive activity in guinea pig models [PMID:14648394, PMID:16872143].

Evidence DObesity and Hepatic Steatosis

Tuberostemonine reduced weight gain, fat accumulation, and improved lipid and glucose metabolism in mice with high-fat diet-induced obesity [PMID:37236577].

Evidence DInflammation

Various alkaloids and polysaccharides from S. tuberosa inhibit NO production in LPS-induced RAW 264.7 cells [PMID:35295975, PMID:38734212, PMID:38331134].

Evidence DCancer

Methanolic extracts showed cytotoxic effects and suppressed colony formation in human lung adenocarcinoma (A549) cells [PMID:40159570]; the dichloromethane fraction inhibited growth and induced apoptosis in human medullary thyroid carcinoma cells [PMID:19707315].

Evidence DPulmonary Fibrosis

Tuberostemonine was found to alleviate bleomycin-induced pulmonary fibrosis in mice [PMID:37532076].

Evidence summary

The current evidence is primarily based on in vitro cell studies and in vivo animal models (Level D), focusing on the isolation of bioactive alkaloids and their pharmacological effects on inflammation, cough, and metabolic disorders.

PubMed sources

1.PMID: 32713205 (2022) — Stilbenoids from the roots of Stemona tuberosa. · Natural product research
2.PMID: 37614210 (2023) — Furfural Derivatives and Phenolic Constituents in Stemona tuberosa Lour. · Chemistry & biodiversity
3.PMID: 35295975 (2022) — Alkaloids From Stemona tuberosa and Their Anti-Inflammatory Activity. · Frontiers in chemistry
4.PMID: 38081397 (2024) — Baiheqingjin formula reduces inflammation in mice with asthma by inhibiting the PI3K/AKT/NF-κb signaling pathway. · Journal of ethnopharmacology
5.PMID: 35178192 (2021) — Bioactive small-molecule constituents of Lao plants. · Journal of medicinal plant research
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Stemonona tuberosa

Sources & Citations

Calculate a safe dose of Stemonona tuberosa