Nattokinase is a fibrinolytic enzyme that directly breaks down fibrin and inhibits platelet aggregation. Combined with any anticoagulant (warfarin, aspirin, DOACs), dramatically increases bleeding risk.
Recommendation
Do NOT take nattokinase with any blood thinner. Consult doctor before use.
Timing
Avoid combination entirely; stop 2 weeks before surgery
Sources
— Nutrition Research
— PMID: 19818632
— PMID: 15046501
Frequently Asked Questions
Can I take blood thinners and nattokinase together?
Nattokinase has potent blood-thinning properties. Do NOT take nattokinase with any blood thinner. Consult doctor before use.
How should I time blood thinners and nattokinase?
Avoid combination entirely; stop 2 weeks before surgery
Is this interaction dangerous?
This interaction is rated “Danger” by Formulate. Nattokinase is a fibrinolytic enzyme that directly breaks down fibrin and inhibits platelet aggregation. Combined with any anticoagulant (warfarin, aspirin, DOACs), dramatically increases bleeding risk.
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