Ingredients | Amount Per Serving |
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(Nattokinase Note: (enzyme activity in fibrinolytic units) (2,000 FU) )
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Modified Cellulose Note: vegetarian capsule, Maltodextrin, Magnesium Stearate Note: vegetable source
Below is general information about the effectiveness of the known ingredients contained in the product Nattokinase. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
INSUFFICIENT RELIABLE EVIDENCE to RATE
Below is general information about the safety of the known ingredients contained in the product Nattokinase. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
LIKELY SAFE ...when used orally in amounts commonly found in foods. Nattokinase is a natural component of the soy food natto. It has been routinely consumed in Japan for hundreds of years (12072,12073).
POSSIBLY SAFE ...when used orally for medicinal purposes. Nattokinase has been used with apparent safety in doses of 2000 fibrinolytic units daily for up to 3 years or 10,800 fibrinolytic units daily for up to 12 months (64835,92312,106406,111252).
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
Below is general information about the interactions of the known ingredients contained in the product Nattokinase. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Nattokinase might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.
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Theoretically, nattokinase might increase the risk of hypotension when used with antihypertensive drugs.
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Below is general information about the adverse effects of the known ingredients contained in the product Nattokinase. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
General
...Orally, nattokinase is generally well tolerated.
Preliminary clinical trials suggest that the incidence of adverse effects with nattokinase is similar to that with placebo.
Serious Adverse Effects (Rare):
Orally: Anaphylaxis, hemorrhage.
Hematologic ...Orally, nattokinase has been associated with rare reports of hemorrhage (64834,109551). A case of intracranial hemorrhage (ICH) has been reported in a 52-year-old female who took nattokinase while taking low-dose aspirin for secondary prevention of ischemic stroke. Seven days after initiating nattokinase 400 mg daily, the patient reported vertigo and unsteady gait and was diagnosed with an acute cerebellar hemorrhage. It was suggested that the thrombolytic and anticoagulant effects of nattokinase combined with aspirin's antiplatelet effects contributed to the ICH (64834). In another case, a 92-year-old female taking nattokinase daily (dose unknown) for atrial fibrillation presented to the hospital after a fall. The patient was on no other anticoagulant or antiplatelet drugs. Abdominal CT showed a ruptured hepatic cystic lesion and intraperitoneal hemorrhage, which was difficult to stop despite several transfusions of red blood cells and fresh frozen plasma. The authors attributed the bleeding complications, in part, to nattokinase use (109551).
Immunologic ...Orally, nattokinase can cause hypersensitivity reactions, including anaphylaxis, in individuals sensitive to natto (109552,111253). A case series examining hypersensitivity reactions to natto shows that the causative allergen can be either nattokinase or polygamma glutamic acid (PGA), both of which are found in the sticky substance surrounding natto soybeans. In patients with hypersensitivity to nattokinase, specifically, symptoms occurred within 2 hours after ingestion, were limited to the pharynx and larynx, and included swelling, tightness, and itching in the throat and lips and dyspnea. All patients with nattokinase sensitivity shared a history of atopic dermatitis (111253).