The most important interaction
Vitamin K can have a serious interaction with warfarin. Nattokinase may increase bleeding risk with anticoagulants or daily aspirin.
These are not theoretical details to ignore; contact a physician or pharmacist before starting this blend if these apply.
Blood-pressure medicines and other treatments
L-citrulline affects pathways involved in vascular signaling, so people taking drugs affecting blood pressure or erectile function should discuss combinations.
Do not discontinue prescription medicines or start this supplement to replace a medical treatment.
When to seek evaluation
NIDDK recommends a medical history, examination and tests where needed for ED.
Persistent erection difficulties, chest symptoms or other new health concerns should be assessed rather than attributed to lack of a supplement.
Safer next steps
Photograph the actual Supplement Facts and take it to a clinician along with a complete medication list.
Use the correct label, not just promotional botanicals, when screening for allergies, interactions and contraindications.
Safety and the blood-thinner question
The supplement reportedly includes both vitamin K and nattokinase, which make the product particularly important to review with a clinician if you take warfarin, other anticoagulants or aspirin. NIH describes significant vitamin K–warfarin interactions; Memorial Sloan Kettering advises against nattokinase with anticoagulants.
Other prescription and OTC medicines may interact with dietary supplements. Do not discontinue ED medication, heart medication or blood thinners because a supplement sales page suggests that alternative medicines are unnecessary.
Common buyer questions for this topic
The most reliable product-specific answer starts with the current physical label and final merchant terms, followed by appropriate medical advice about medicines and pre-existing conditions.
Discounted bundle pricing, positive promotional testimonials and ingredient-level citations cannot by themselves establish a medical treatment outcome.
More Boostaro buyer research
Sources and editorial verification
We checked the user-provided official sales campaign on November 9, 2026. Where amounts come from a separate Boostaro-branded label page, that source is identified explicitly. Ingredient or disease research is not an endorsement of Boostaro.
- Boostaro official /long/ sales campaign, checked November 9, 2026
- Seller-branded Boostaro ingredient-label presentation (secondary comparison)
- NIDDK: Erectile Dysfunction overview
- Memorial Sloan Kettering: Nattokinase safety
- NIH Office of Dietary Supplements: Vitamin K
- FDA: Dietary supplement information for consumers