Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Vitamin K-2 Menaquinone-7 50 mcg Ingredients & Drug Interactions

by Solaray

Vitamin K-2 Menaquinone-7 50 mcg label
See full label image
Capsule Category: Vitamin
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Vitamin K-2 Menaquinone-7 50 mcg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Major

Vitamin K-2 Menaquinone-7 50 mcg is a dietary supplement by Solaray with 1 active ingredient. Its ingredients are commonly taken for supporting normal blood clotting, bone health, heart and vascular health.Based on those ingredients, 2 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin K. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Vitamin K-2 Menaquinone-7 50 mcg by Solaray

Ask about any prescription or over-the-counter medication and we check it for interactions with Vitamin K-2 Menaquinone-7 50 mcg by Solaray — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Vitamin K-2 Menaquinone-7 50 mcg by Solaray

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: vitamin K, in the form of menaquinone-7 (a naturally occurring K2 variant), at 50 mcg per capsule. Vitamin K plays a central role in blood clotting and bone health.

The capsule also holds inactive ingredients — cellulose, glycerol monostearate, magnesium stearate, fermented defatted chickpea flour extract, rice extract blend, and silica — which are binders, fillers, and flow agents that give the supplement its form.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Bone and arterial support.
  • We looked for evidence on: Osteoporosis, Cardiovascular disease (CVD), Vitamin K-dependent clotting factors deficiency (VKCFD), Hemorrhagic disease, Hypoprothrombinemia, Warfarin anticoagulation — and 3 related terms.
  • The strongest evidence on file: Vitamin K is rated "Effective" for Hemorrhagic disease (Natural Medicines).
  • Also on file: Vitamin K is rated "Effective" for Hypoprothrombinemia, Warfarin anticoagulation, Vitamin K-dependent clotting factors deficiency (VKCFD).
  • Also on file: Vitamin K is rated "Possibly Effective" for Osteoporosis.

Vitamin K is established as effective for treating vitamin K deficiency conditions — low levels of vitamin K–dependent clotting factors, and hemorrhagic disease (serious bleeding from clotting problems). It's also effective for managing warfarin anticoagulation by restoring clotting ability when needed.

For osteoporosis, the evidence is possibly effective, meaning there's some supportive research but not yet proof it works for that purpose.

The evidence, ingredient by ingredient Vitamin K

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Taken by mouth, vitamin K is generally well tolerated in healthy people at dietary levels and most supplement doses. The most common side effects are mild — diarrhea, nausea, and stomach upset.

The safety data advises that normal dietary amounts are fine, but you should check with your doctor before taking supplements. For pregnancy and lactation, vitamin K is rated as likely safe.

Side effects, ingredient by ingredient Vitamin K

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Vitamin K.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 2 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take warfarin (Coumadin) or any other blood thinner, check with your pharmacist before using this supplement. Vitamin K can reduce how well warfarin works, and even modest supplemental doses can matter.

No interactions are documented for the other ingredients we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This supplement is a straightforward source of vitamin K-2 for people who may not get enough from food, or whose doctor recommends it for bone or clotting support. If you take warfarin or any other blood thinner, do not start this without talking to your pharmacist first — the interaction is serious and dose matters.

Anyone with questions about whether it fits their health picture should ask their provider.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Mar 25, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Vitamin K-2 Menaquinone-7 50 mcg, straight from the product label.

Brand Solaray
Barcode (UPC) 076280874969
Net contents 60 VegCap(s)
Market status On market
Date entered into DSLD Mar 25, 2025
DSLD ID 326154
Product type Vitamin
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Vitamin K-2 Menaquinone-7 50 mcg by Solaray, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 VegCap(s)
Maximum serving Sizes:
1 VegCap(s)
Servings per container
60
UPC/BARCODE
076280874969
IngredientAmount% DV
Vitamin K50 mcg--

Other ingredients: Cellulose, Glycerol Monostearate, Magnesium Stearate, fermented defatted Chickpea flour extract, Rice extract Blend, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)

Solaray Est. 1973 A brighter way 1973

Formulation

Bone support Arterial support

Vegan

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Lab Verified Vegan

General Statements

Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter & embrace the moments that matter most.

100% PCR Bottles

Precautions

Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product.

Keep out of reach of children.

Suggested/Recommended/Usage/Directions

Directions: Use only as directed. Take 1 VegCap daily with a meal or glass of water.

Storage

Store in a cool, dry place.

Formula

Discussion: The premium Vitamin K-2 menaquinone-7 used in this formula is derived from chickpea. Menaquinone-7 (MK-7) is known to have a longer half-life than other forms of Vitamin K, and is therefore believed to offer unique benefits to the body. It helps support cardiovascular health, bone formation and vascular health.

FDA Disclaimer Statement

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Vitamin K-2 Menaquinone-7 50 mcg by Solaray label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Vitamin K-2 Menaquinone-7 50 mcg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Vitamin K-2 Menaquinone-7 50 mcg by Solaray

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 VegCap(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Vitamin K

Interacts with
2 drugs
50 mcg per serving Form: Menaquinone-7, Vitamin K2

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but suppl...

Vitamin K monograph & interactions

Other (inactive) ingredients: Cellulose, Glycerol Monostearate, Magnesium Stearate, Fermented defatted Chickpea flour extract, Rice extract Blend, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Vitamin K-2 Menaquinone-7 50 mcg by Solaray Drug Interactions

Want to check YOUR meds against Vitamin K-2 Menaquinone-7 50 mcg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
2Drugs
2 Major

Ingredients driving the most interactions

Vitamin K 2

Individual Drug Interactions

The ingredients in Vitamin K-2 Menaquinone-7 50 mcg interact with 2 drugs. Click any drug to see the details.

1 of the 1 ingredient in Vitamin K-2 Menaquinone-7 50 mcg interact with drugs. Each result below shows which ingredient is responsible. Vitamin K

Each ingredient & the kinds of drugs it affects

For each ingredient in Vitamin K-2 Menaquinone-7 50 mcg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitamin K1 drug type · 2 drugs

Warfarin (Coumadin)

Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Vitamin K antagonizes the effects of warfarin. Excessive vitamin K intake, either from supplements or from changes in the diet, can reduce the anticoagulant effect of warfarin.

Likelihood Likely Evidence C
Vitamin K full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Vitamin K-2 Menaquinone-7 50 mcg, from the product label.

Solaray

See all Solaray products
Name
Nutraceutical Corp.
Web Address
www.nutraceutical.com
Pharmacist Counseling Corner

Vitamin K-2 Menaquinone-7 50 mcg by Solaray: Common Questions

Does Vitamin K-2 Menaquinone-7 50 mcg by Solaray interact with any medications?
Yes. Based on its ingredients, Vitamin K-2 Menaquinone-7 50 mcg has a known interaction with 2 medications, including 2 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Vitamin K-2 Menaquinone-7 50 mcg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
I take warfarin. Can I use this?
Not without checking with your pharmacist or doctor first. Vitamin K directly opposes warfarin's effect, and this supplement can weaken its clot-prevention power. Your provider may adjust your warfarin dose or recommend you skip this product — it depends on your situation.
What are the side effects?
When taken by mouth, vitamin K is generally well tolerated. Some people report mild stomach upset, nausea, or diarrhea. These are the most common effects noted in the data, and they're usually temporary and mild.
Does vitamin K really help bones?
There's some supportive research, so vitamin K is rated as possibly effective for osteoporosis. That means it shows promise but isn't yet proven. Talk to your doctor if bone health is your main reason for taking it.
Is it safe during pregnancy or breastfeeding?
Vitamin K is rated as likely safe during pregnancy and lactation. If you're pregnant or nursing, though, it's still worth confirming with your doctor or midwife before starting any supplement.
What's menaquinone-7?
That's vitamin K2, a form that occurs naturally in some foods like fermented soy, cheese, and grass-fed dairy. It's different from K1, which is in leafy greens, but your body uses both for clotting and bone metabolism.
Does this product have any fillers?
Yes — it contains inactive ingredients like cellulose, magnesium stearate, and rice extract blend that help make the capsule. These are standard in supplements and help with absorption and shelf stability.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Vitamin K-2 Menaquinone-7 50 mcg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Vitamin K-2 Menaquinone-7 50 mcg label
Go deeper

The Full Monographs Behind Vitamin K-2 Menaquinone-7 50 mcg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitamin K

Interacts with 2 drugs

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but supplements are sometimes used for deficiency...

Read the full Vitamin K monograph →
Sources

Sources & How We Checked

Vitamin K-2 Menaquinone-7 50 mcg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 11 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Vitamin K 11 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  3. Crowther MA, Ageno W, Garcia D, et al. Oral vitamin K versus placebo to correct excessive anticoagulation in patients receiving warfarin: a randomized trial. Ann Intern Med. 2009;150(5):293-300. PubMed
  4. Dietary vitamin K guidance: an effective strategy for stable control of oral anticoagulation? Nutr Rev. 2010;68(3):178-81. PubMed
  5. Kim JS, Nafziger AN, Gaedigk A, et al. Effects of oral vitamin K on S- and R-warfarin pharmacokinetics and pharmacodynamics: enhanced safety of warfarin as a CYP2C9 probe. J Clin Pharmacol. 2001 Jul;41(7):715-22. PubMed
  6. Riegert-Johnson, D. L. and Volcheck, G. W. The incidence of anaphylaxis following intravenous phytonadione (vitamin K1): a 5-year retrospective review. Ann.Allergy Asthma Immunol. 2002;89(4):400-406. PubMed
  7. Dezee, K. J., Shimeall, W. T., Douglas, K. M., Shumway, N. M., and O'malley, P. G. Treatment of excessive anticoagulation with phytonadione (vitamin K): a meta-analysis. Arch.Intern.Med. 2-27-2006;166(4):391-397. DOI
  8. Dentali, F., Ageno, W., and Crowther, M. Treatment of coumarin-associated coagulopathy: a systematic review and proposed treatment algorithms. J.Thromb.Haemost. 2006;4(9):1853-1863. PubMed
  9. Caluwé R, Vandecasteele S, Van Vlem B, Vermeer C, De Vriese AS. Vitamin K2 supplementation in haemodialysis patients: a randomized dose-finding study. Nephrol Dial Transplant. 2014;29(7):1385-90.
  10. Huang ZB, Wan SL, Lu YJ, Ning L, Liu C, Fan SW. Does vitamin K2 play a role in the prevention and treatment of osteoporosis for postmenopausal women: a meta-analysis of randomized controlled trials. Osteoporos Int. 2015;26(3):1175-86. PubMed
  11. Hunnali CR, Devi U, Kitchanan S, Sethuraman G. Three Different Regimens for Vitamin K Birth Prophylaxis in Infants Born Preterm: A Randomized Clinical Trial. J Pediatr 2023;255:98-104. PubMed

See these in context on the Vitamin K monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team