Lumbrokinase
Lumbrokinase
TL;DR
Lumbrokinase is a group of fibrinolytic enzymes from earthworms, sold for circulation and clot support. Most human data comes from Chinese hospital studies of variable quality; it is not a substitute for prescribed anticoagulation.
Ideal For
- People exploring circulation support under clinician supervision who are not on anticoagulants
Avoid If
- You take warfarin, a DOAC, aspirin or clopidogrel
- You have a bleeding disorder or active ulcer
- You have surgery or dental extraction scheduled within two weeks
- You are pregnant or breastfeeding
Frequently Asked Questions
Overview
Lumbrokinase is not a single enzyme but a family of fibrinolytic proteases extracted from Lumbricus rubellus, used in China for decades under names such as Boluoke. Unlike nattokinase, which mainly degrades fibrin directly, lumbrokinase preparations both cleave fibrin and appear to activate endogenous plasminogen, and they have been reported to reduce fibrinogen and platelet aggregation. The clinical literature is genuinely substantial in volume — hundreds of Chinese-language studies in ischaemic stroke, unstable angina and diabetic complications — but most are small, poorly randomized, inconsistently reported and rarely blinded, so the effect size cannot be trusted at face value. Western regulatory bodies have not approved it, and no large multicentre trial exists. The practical concerns are real: because it is enzymatically active on fibrin, stacking it with warfarin, DOACs, aspirin or fish oil compounds bleeding risk, and it should be stopped well before surgery. Enteric coating matters because the enzymes are destroyed by gastric acid. Treat it as a plausible but unproven adjunct, not as therapy for a diagnosed clotting disorder.
How It Works
- Directly hydrolyses fibrin, dissolving the protein scaffold of clots
- Activates plasminogen to plasmin, amplifying endogenous fibrinolysis
- Reduces platelet aggregation and plasma fibrinogen in reported studies
- Requires enteric coating to survive gastric acid and be absorbed intact
Benefits & Outcomes
No linked outcomes yet. Research is ongoing.
Supporting Research5 studies
Oral administration of lumbrokinase for acute ischaemic stroke: a systematic review of randomised controlled trials
Cao YJ, Zhang X, Wang WH
Pooled trials suggested improved neurological scores with lumbrokinase, but all included studies had substantial methodological weaknesses.
Lumbrokinase, a Fibrinolytic Enzyme, Prevents Intra-Abdominal Adhesion and Thrombosis: A Review of Pharmacology and Clinical Evidence
Wang YH, Li Z, Wang JP
Lumbrokinase degrades fibrin directly and activates plasminogen, with clinical data limited to small studies.
Safety and tolerability of oral earthworm fibrinolytic enzyme preparations: a review of adverse event reports
Li G, Wang KY, Li D
Bleeding risk when combined with anticoagulants is theoretically increased and poorly studied.
Fibrinolytic enzymes from earthworm: pharmacological properties and therapeutic potential
Verma MK, Pulicherla KK
Human pharmacokinetic data for orally administered earthworm fibrinolytic enzymes are lacking.
Lumbrokinase attenuates myocardial ischemia-reperfusion injury and improves fibrinolytic markers
Jin L, Jin H, Zhang G +1 more
Oral lumbrokinase reduced fibrinogen and plasma viscosity in patients with ischaemic disease.
Safety Information
Potential Side Effects
Nausea, mild GI upset, and easy bruising or prolonged bleeding from minor cuts. Allergic reactions are possible given the protein source.
Contraindications
Concurrent anticoagulant or antiplatelet therapy, bleeding disorders, active peptic ulcer, imminent surgery.
Drug Interactions
- Warfarin and DOACs — additive bleeding risk
- Aspirin, clopidogrel and other antiplatelets
- High-dose fish oil, nattokinase, ginkgo and garlic — cumulative bleeding risk
Pregnancy & Breastfeeding
Pregnancy: likely_unsafe
Breastfeeding: insufficient_data
Dosage Guidelines
Dosage Used in Studies
Consult healthcare provider
Forms Compared
Food & Timing
On an empty stomach, at least 30 minutes before or two hours after eating — food diverts the enzyme to digesting protein.
Medical Disclaimer
The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.
Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.