Is Lipitor Safe To Take With Nattokinase?

In our latest question and answer, the pharmacist discusses the combined use of Lipitor and nattokinase.

2 min read Updated Jun 2026 Read by 3,532 people
Is Lipitor Safe To Take With Nattokinase?
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Rich asked

Is it OK to take Lipitor with Nattokinase?

May 28, 2025
The quick answer
  • Nattokinase and Lipitor are generally considered safe to take together with no well-documented harmful interaction between them.
  • Nattokinase is an enzyme from fermented soybeans that may have mild blood-thinning effects, but Lipitor does not affect blood clotting so there is no specific concern with this combination.
  • It's important to tell your healthcare provider if you're taking nattokinase so you can be appropriately monitored.
A quick summary of Dr. Brian Staiger, PharmD's full answer below, condensed by AI from that answer only (not from any outside source). The pharmacist's answer is the source of record.
Medications in this answer — tap to explore

Answer

Thanks for reaching out! Our drug-supplement interaction checker does not list an interaction between nattokinase and Lipitor (atorvastatin) [Nattokinase - Lipitor Interaction Details | HelloPharmacist]. They are generally considered safe to take together, and there is no well-documented evidence suggesting a harmful interaction between them.

Additional Info

Nattokinase is an increasingly popular dietary supplement that is worth understanding before use, especially if you're also taking medications that affect blood clotting.

Nattokinase is an enzyme extracted from natto, a Japanese-style food made from fermented soybeans. It has been used for centuries in Japan and is most often marketed as a natural fibrinolytic agent in dietary supplements, meaning it helps break down fibrin, a protein involved in blood clotting. Some early research suggests nattokinase may have mild blood-thinning and blood pressure-lowering effects, which is why it's often promoted for cardiovascular health.

The mechanism of action of nattokinase differs from how statins like Lipitor work (which primarily lower cholesterol by inhibiting HMG-CoA reductase). Lipitor does not affect blood clotting.

There is a theoretical concern when nattokinase is combined with medications that affect blood clotting, such as aspirin, warfarin, Plavix or other blood-thinning agents. These combinations may increase the risk of bleeding. However, as mentioned, Lipitor does not work as a blood thinner, so this specific concern does not apply to the Lipitor-nattokinase combination.

It's also worth noting that nattokinase may reduce blood pressure, which is why our website lists it as having possible interactions with antihypertensives.

Final Words

If you're considering taking nattokinase for heart health, as always, it's best to let your healthcare provider know so you can be appropriately monitored.

Let us know if you'd like us to check any other supplements or medications you're taking!

References & sources
  1. Dietary supplementation of fermented soybean, natto, suppresses intimal thickening and modulates the lysis of mural thrombi after endothelial injury in rat femoral artery — PubMed
  2. Effects of nattokinase on blood pressure: a randomized, controlled trial — PubMed
  3. Lipitor Prescribing Information — AccessFDA
Glossary — Terms in This Answer
Nattokinase
An enzyme extracted from fermented soybeans that may help break down blood clots.
Fibrinolytic agent
A substance that helps dissolve fibrin, the protein that forms the structure of blood clots.
Fibrin
A protein in the blood that forms the mesh-like structure of blood clots.
Statin
A class of medications that lowers cholesterol by blocking an enzyme the body uses to make it.
HMG-CoA reductase
An enzyme that the body uses to produce cholesterol, which statins block.
Anticoagulant
A medication that thins the blood and helps prevent blood clots from forming.
Antihypertensive
A medication that lowers blood pressure.
Mechanism of action
The specific way a drug or supplement works in the body to produce its effects.
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Dr. Brian Staiger, PharmD
About the pharmacist

Dr. Brian Staiger, PharmD

Clinical Pharmacy

Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified

Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...

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