American Society of Hirudotherapy

A systematic review on Zhilong Huoxue Tongyu capsule in treating cardiovascular and cerebrovascular diseases: Pharmacological actions, molecular mechanisms and clinical outcomes

Systematic review published in J Ethnopharmacol (2021)

Last Updated: June 18, 2026Reviewed by: ASH Editorial Board
Research article — evidence reviewArticle reference
Evidence: Systematic reviewDrug DevelopmentSalivary PharmacologyLiang P et al. · Journal of ethnopharmacology, 2021

Abstract

ETHNOPHARMACOLOGICAL RELEVANCE: Cardiovascular and cerebrovascular diseases have become a severe threat for human health worldwide, however, optimal therapeutic options are still developed. Zhilong Huoxue Tongyu capsule (ZL capsule) is mainly composed of Astragalus membranaceus, Leech, Earthworm, Cinnamomum cassia and Sargentodoxa cuneata, having functions of replenishing qi and activating blood, dispelling wind and reducing phlegm. It is an expanded application on the basis of traditional uses of above TCMs, acquiring a satisfactory curative effect on cardiovascular and cerebrovascular diseases over twenty years. AIM OF THE STUDY: To comprehensively summarize the main components of ZL capsule, understand the mechanisms of ZL capsule, and conclude clinical regimens of ZL capsule for cardiovascular and cerebrovascular diseases. MATERIALS AND METHODS: We selected network pharmacology technology to analyze main active compounds and predict underlying mechanism of ZL capsule against atherosclerosis. Molecular docking was performed to simulate the interaction pattern between the active components of ZL capsule and putative targets. Further, PubMed, Web of Science, China National Knowledge Infrastructure and Google Scholar were used to search literatures, with the key words of "Zhilong Huoxue Tongyu capsule", "cardiovascular and cerebrovascular diseases", "atherosclerosis", "clinical study" and their combinations, mainly from 2000 to 2020. RESULTS: Both network pharmacology analysis, molecular docking and animal experiments studies confirmed that mechanisms of ZL capsule plays the role of anti-inflammatory, anti-apoptosis and promoting angiogenesis in treating cardiovascular and cerebrovascular diseases by multi-components acting on multi-targets via multi-pathways. Over 1000 clinical cases were benefited from the treatment of ZL capsule, suggesting a holistic concept of "the same therapy for different myocardial and cerebral diseases". CONCLUSIONS: For the first time, this systematic review may supply meaningful information for further studies to explore material basis and pharmacodynamics of ZL capsule and also provide a basis for sharing the "Chinese patent medicine" for cardiovascular and cerebrovascular diseases.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Publication typeJournal ArticleSystematic Review
Indexed MeSH termsAnimalsCardiovascular DiseasesCerebrovascular DisordersDrugs, Chinese HerbalHumansMedicine, Chinese TraditionalMolecular Docking Simulation

Summary

Network-pharmacology analysis and over 1000 reported clinical cases support anti-inflammatory, anti-apoptotic, and pro-angiogenic effects of Zhilong Huoxue Tongyu capsule (containing leech as a principal component) in cardiovascular and cerebrovascular diseases.

Why This Matters for Hirudotherapy

This systematic review examined Zhilong Huoxue Tongyu (ZL) capsule, a traditional Chinese medicine formulation containing Astragalus membranaceus, leech, earthworm, Cinnamomum cassia, and Sargentodoxa cuneata, in the context of cardiovascular and cerebrovascular diseases. The authors used network pharmacology analysis, molecular docking, and reviewed animal and clinical studies, reporting anti-inflammatory, anti-apoptotic, and pro-angiogenic mechanisms and stating that over 1000 clinical cases benefited from ZL capsule treatment. Leech is one of several components in this multi-ingredient formula, but the review does not isolate leech-specific effects. Its relevance to hirudotherapy or the leech secretome is indirect, as the leech component is not examined independently and the abstract provides no detail on leech-specific contributions.

Citation

A systematic review on Zhilong Huoxue Tongyu capsule in treating cardiovascular and cerebrovascular diseases: Pharmacological actions, molecular mechanisms and clinical outcomes.

Liang P et al. · Journal of ethnopharmacology, 2021

Added to ASH library: May 26, 2026 · Site last updated: June 18, 2026

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