May 29, 2016

Nattokinase

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How does Nattokinase work?

Nattokinase decreases the ability of blood to clot. This "thins the blood" and might protect against conditions caused by blood clots such as stroke, heart attack, and others.

Are there safety concerns?

Nattokinase is LIKELY SAFE when taken by mouth in amounts commonly found in foods. Nattokinase is a natural component of the soy food natto. It has been routinely consumed in Japanese cultures for hundreds of years.

Nattokinase is POSSIBLY SAFE when taken by mouth as medicine. Taking two doses of a specific product containing nattokinase (Flite Tabs) seems to be safe. However, it is not known if taking more than two doses is safe.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking nattokinase if you are pregnant or breast-feeding. Stay on the safe side and avoid use.

Bleeding disorders: Nattokinase seems to act like a "clot thinner" and might make bleeding disorders worse. Use with caution.

Surgery: Nattokinase might increase the chance of bleeding too much during or after surgery. Stop taking it at least 2 weeks before a scheduled surgery.


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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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