Quick Summary

Spatholobus suberectus is a traditional Chinese medicinal herb studied mainly as part of complex TCM (Traditional Chinese Medicine) formulas and combination therapies. Evidence from randomized controlled trials and meta-analyses suggests it may provide potential benefits when used alongside conventional treatments for conditions such as diabetic peripheral neuropathy, psoriasis vulgaris, connective tissue disease-associated interstitial lung disease, and Wilson’s disease. Preliminary safety data are generally favorable, but more well-designed, large-scale clinical trials are needed to confirm its efficacy and safety. Limited information is available regarding specific adverse effects, drug interactions, and use during pregnancy or breastfeeding.

What is it?

Spatholobus suberectus is a climbing vine native to East Asia and used in traditional Chinese medicine. The stems of the plant are primarily utilized for medicinal purposes. It is commonly included in herbal formulas intended to support blood circulation and treat various disorders.

Traditional Uses

Traditionally, Spatholobus has been employed in TCM to improve blood flow, relieve pain, and treat conditions affecting connective tissues and the cardiovascular system. It is often used in combination with other herbs as part of multi-component formulas.

Active Compounds

The herb contains various phytochemicals, including flavonoids, polysaccharides, and phenolic compounds. These contribute to its biological activities, such as potential antioxidant, anti-inflammatory, and antiplatelet effects.

Potential Benefits with Evidence Levels

  • Diabetic Peripheral Neuropathy (Moderate evidence): TCM therapies involving herb combinations that may include Spatholobus, together with acupuncture or herbal footbaths, showed improvements in nerve conduction velocity and clinical symptoms in a large network meta-analysis of randomized controlled trials (95 RCTs, 8194 patients).
  • Psoriasis vulgaris (Low to moderate evidence): East Asian herbal medicines combined with conventional treatments showed improved Psoriasis Area Severity Index (PASI) scores and quality of life, though evidence quality is limited.
  • Connective tissue disease-associated interstitial lung disease (Moderate evidence): Chinese herbal medicines, some possibly containing Spatholobus, combined with cyclophosphamide improved clinical outcomes and lung function without increased adverse events.
  • Wilson’s disease (Low to moderate evidence): Adjunct use of Chinese herbal medicine may improve liver function and increase urinary copper excretion; however, methodological limitations warrant cautious interpretation.
  • Cancer symptom management (Insufficient evidence): Herbal decoctions containing Spatholobus might alleviate symptom clusters and enhance quality of life in advanced cancer patients, although evidence remains preliminary.
  • Chemotherapy-induced peripheral neuropathy (Low evidence): Herbal combinations including other herbs showed promise in reducing incidence and severity, but further rigorous trials are required.

Side Effects

Clinical studies generally report favorable safety profiles for herbal formulations containing Spatholobus when used adjunctively, with no serious adverse events widely reported. No significant or severe adverse effects specifically attributed to Spatholobus alone were identified. Some trials noted no increase in adverse events compared to conventional therapy alone.

Drug Interactions

Specific data on drug interactions with Spatholobus are lacking. General caution is recommended due to potential interactions between traditional Chinese medicines and Western pharmaceuticals, especially antiplatelet agents like aspirin, as noted in broader TCM herb-drug interaction reviews.

Who Should Avoid It

No specific contraindications for Spatholobus have been identified. However, use should be cautious in sensitive populations and those lacking robust safety data, including pregnant or breastfeeding women.

Evidence Limitations

  • Most clinical evidence involves multi-herb formulas containing Spatholobus, limiting the ability to isolate effects of the herb alone.
  • Many studies have methodological limitations such as small sample sizes and lack of blinding, and they are mostly conducted in China, which may limit generalizability.
  • Variation in formulations, dosages, and treatment durations complicates firm conclusions.
  • More high-quality, large-scale randomized controlled trials specifically investigating Spatholobus are needed.
  • Limited data exist on pharmacokinetics, long-term safety, drug interactions, and use during pregnancy or breastfeeding.

References

  • Hu J, Wang H, Hao X, et al. (2025). Traditional Chinese medicine for diabetic peripheral neuropathy: a network meta-analysis. Frontiers in Endocrinology. DOI: 10.3389/fendo.2025.1596924. PMID: 40937416.
  • Guan X, Wu Y, Jia Q, et al. (2025). Efficacy and safety of Chinese herbal medicine for multiple sclerosis: a systematic review and meta-analysis of randomized controlled trials. Frontiers in Pharmacology. DOI: 10.3389/fphar.2025.1635833. PMID: 41059199.
  • Yin X, Zhao S, Xiang N, et al. (2023). Efficacy and safety of Chinese herbal medicines combined with cyclophosphamide for connective tissue disease-associated interstitial lung disease: A meta-analysis of randomized controlled trials. Frontiers in Pharmacology. DOI: 10.3389/fphar.2023.1064578. PMID: 36909152.
  • Xu MB, Rong PQ, Jin TY, et al. (2019). Chinese Herbal Medicine for Wilson’s Disease: A Systematic Review and Meta-Analysis. Frontiers in Pharmacology. DOI: 10.3389/fphar.2019.00277. PMID: 31001112.
  • Lim JW, Chee SX, Wong WJ, et al. (2018). Traditional Chinese medicine: herb-drug interactions with aspirin. Singapore Medical Journal. DOI: 10.11622/smedj.2018051. PMID: 29796686.
  • Cui Y, Sun W, Li Q, et al. (2022). Effects of Caulis Spatholobi Polysaccharide on Immunity, Intestinal Mucosal Barrier Function, and Intestinal Microbiota in Cyclophosphamide-Induced Immunosuppressive Chickens. Frontiers in Veterinary Science. DOI: 10.3389/fvets.2022.833842. PMID: 35372558.
  • Xiu LY, Zhang YQ, Zhang FC, et al. (2011). Antiplatelet effects of Spatholobus suberectus via inhibition of the glycoprotein IIb/IIIa receptor. Journal of Ethnopharmacology. DOI: 10.1016/j.jep.2010.12.039.

Last Reviewed

April 2024

Disclaimer: This page is for informational purposes only and does not constitute medical advice. The effects of Spatholobus suberectus have not been fully established, and it should not replace conventional medical treatment. Always consult a qualified healthcare provider before starting any new herbal supplement, especially if you have underlying health conditions or are taking other medications. Use during pregnancy or breastfeeding is not recommended due to insufficient safety data.