Contraindicated / High risk. Use only under practitioner supervision.
TCM Properties
- Taste
- sweet
- Temperature
- neutral
- Channels
- Liver, Kidney, Spleen, Stomach
Traditional Use
Primary Actions
- Regulates menstruation and activates Blood - Xiao Ye Lian is a rare toxic gynecologic herb used for amenorrhea, delayed menses, or fixed lower-abdominal pain when Blood stasis is the central pattern.
- Assists the expulsion of retained products in obstructed labor patterns - older regional usage includes difficult labor, retained placenta, and stillbirth, which is why the herb is treated as a specialist medicine rather than a routine women's tonic.
- Breaks accumulation rather than nourishing deficiency - its role is to move what is stuck, especially when cold-neutral but toxic force is needed to dislodge stubborn stasis.
Secondary Actions
- Xiao Ye Lian is not a mainstream daily-use blood mover; it belongs to the group of toxic medicinals that require precise indication, dosage control, and experienced supervision.
- Modern interest in the plant is driven more by podophyllotoxin chemistry than by broad contemporary clinical use of the crude fruit itself.
Classical References
- Regional materia medica summaries describe Xiao Ye Lian as sweet, neutral, and toxic, emphasizing its use for amenorrhea, difficult labor, and retained fetal or placental material rather than for ordinary menstrual discomfort.
- Traditional handling treats the drug as a targeted gynecologic mover of stasis, not as a general tonic, and its toxic classification has always limited routine household use.
- Modern restricted-substance lists and conservation notes reinforce an older practical lesson: authentication and restraint matter because podophyllum-type materials are potent and easily misused.
Modern Research
Active Compounds
- Podophyllotoxin - the signature aryltetralin lignan and the best known anticancer lead compound associated with Sinopodophyllum species
- Deoxypodophyllotoxin and picropodophyllotoxin - closely related lignans that contribute to the plant's strong bioactivity and toxicity profile
- Podophyllotoxin glycosides - storage and transport forms documented in Sinopodophyllum chemistry studies
- Total lignan fractions - quality-relevant constituents that vary substantially by habitat and source material
Studied Effects
- A 2021 review summarized how podophyllotoxin and related lignans from Sinopodophyllum-type plants remain major lead structures for modern anticancer drug development, while also underscoring the narrow therapeutic window of the parent natural product (PMID 34447752).
- Chemical work on Sinopodophyllum emodi identified multiple podophyllotoxin glucosides and related lignans, reinforcing that the crude drug's activity is driven by a dense cluster of cytotoxic aryltetralin compounds rather than by a single simple marker (PMID 11411537).
- A habitat study of Sinopodophyllum emodi found marked regional differences in podophyllotoxin and total lignan content, which helps explain why crude material potency and toxicity can vary significantly between sources (PMID 22860442).
PubMed References
Safety & Interactions
Contraindications
- Pregnancy
- Heavy menstrual bleeding or active uterine bleeding
- Self-prescribed internal use
- Use in children or frail patients without specialist supervision
Cautions
- Xiao Ye Lian is classically toxic and should not be treated like an ordinary blood-moving herb.
- Podophyllotoxin-type plants can cause significant gastrointestinal irritation and potentially serious systemic toxicity if overdosed or misidentified.
- Because traditional use includes obstructed labor and retained products, this herb is especially inappropriate during normal pregnancy.
- MSK page not found - drug interaction data not available from Memorial Sloan Kettering integrative medicine database