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

D3 125 mcg + K2 100 mcg Ingredients & Drug Interactions

by SR SportsResearch

Softgel Capsule Category: Vitamin
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

D3 125 mcg + K2 100 mcg is a dietary supplement by SR SportsResearch with 2 active ingredients. Its ingredients are commonly taken for bone health and osteoporosis, correcting vitamin d deficiency, immune system support.Based on those ingredients, 715 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin D, Vitamin K. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of D3 125 mcg + K2 100 mcg by SR SportsResearch

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

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 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 2 active ingredients: vitamin D (125 mcg) and vitamin K (100 mcg). Vitamin D supports bone health, calcium regulation, and immune function.

Vitamin K plays a central role in blood clotting and bone metabolism. The softgel is made with organic virgin coconut oil, rice bran wax, modified tapioca starch, glycerin, purified water, and olive oil as inactive ingredients that help deliver and stabilize the vitamins.

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 health and nutrient supplementation.
  • We looked for evidence on: Corticosteroid-induced osteoporosis, Fall prevention, Fractures, Frailty, Hyperparathyroidism-related bone loss, Kidney transplant-related bone loss — and 4 related terms.
  • The strongest evidence on file: Vitamin D is rated "Effective" for Osteomalacia (Natural Medicines).
  • Also on file: Vitamin D is rated "Effective" for Vitamin D deficiency.
  • Also on file: Vitamin D is rated "Likely Effective" for Corticosteroid-induced osteoporosis.

Vitamin D is effective for treating rickets, osteomalacia (soft bones), renal bone disease, hypoparathyroidism, and familial hypophosphatemia. Vitamin K is effective for correcting blood clotting problems due to vitamin K deficiency and for managing warfarin dosing.

Vitamin K is also possibly effective for osteoporosis, though the evidence for that use is not yet strong.

The evidence, ingredient by ingredient Vitamin D 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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Both vitamins are generally well tolerated at recommended doses. Vitamin D is generally safe, though very high doses over time can cause toxicity with symptoms of high blood calcium (hypercalcemia).

Vitamin K taken by mouth typically causes only mild stomach upset — nausea, diarrhea, or abdominal discomfort — in some people. The safety data for vitamin D in pregnancy is mixed (some evidence it's likely safe, other evidence suggests caution), and in breastfeeding it's considered likely safe; vitamin K is likely safe in both pregnancy and lactation.

Talk with your doctor before taking this product if you're pregnant, breastfeeding, or planning to take high doses beyond what's in the supplement.

Side effects, ingredient by ingredient Vitamin D 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?
  • 2 of the 2 matched ingredients can interact with medications — Vitamin D, Vitamin K.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; heart-rhythm medications.
  • For scale: 716 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.

Before taking this product, double-check with your doctor or pharmacist if you take warfarin or other blood thinners — vitamin K can reverse their effects (Major interaction). Also check if you take heart rhythm medications like verapamil, diltiazem, or digoxin; thiazide water pills; atorvastatin or other cholesterol drugs; or any aluminum-containing products.

Vitamin D at high doses can raise blood calcium and interfere with how these drugs work. If you take other medications metabolized by the liver enzyme CYP3A4, vitamin D may reduce their effectiveness.

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 product is useful if you're correcting vitamin D or vitamin K deficiency, especially under medical supervision. However, if you take blood thinners (warfarin), heart rhythm medications, cholesterol drugs, water pills (diuretics), or have kidney problems, this combination requires careful review with your doctor or pharmacist before you start.

The warfarin interaction is serious, and the vitamin D interactions can reduce how well several heart and cholesterol medications work. Talk it over with your healthcare provider to make sure this product is right for you.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 14, 2023.

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 D3 125 mcg + K2 100 mcg, straight from the product label.

Brand SR SportsResearch
Barcode (UPC) 023249012344
Net contents 120 Veggie Softgel(s)
Market status On market
Date entered into DSLD Dec 14, 2023
DSLD ID 299954
Product type Vitamin
Supplement form Softgel Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, 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 D3 125 mcg + K2 100 mcg by SR SportsResearch, 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 Liquid Veggie Softgel
Maximum serving Sizes:
1 Liquid Veggie Softgel
Servings per container
120
UPC/BARCODE
023249012344
IngredientAmount% DV
Vitamin D125 mcg625%
Vitamin K100 mcg83%

Other ingredients: Organic Virgin Coconut Oil, non-GMO Rice Bran Wax, Tapioca Starch, Modified, Glycerin, Water, Purified, Olive Oil

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.
Formula

SR Vitamin D3 + K2 combines VegaDELight Vegan D3 (as cholecalciferol from lichen) and MenaQ7 K2 (as menaquinone-7 from chickpea). Formulated with virgin coconut oil, SR Vitamin D3 + K2 is an easy way to add these two essential micronutrients to your daily routine. Formulated with coconut oil

Made with coconut oil 125 mcg vitamin D3 (5000 IU) 100 mcg vitamin K2 as MK-7

Formulation

Non-GMO Project Verified

Track your lot number, and view third party independent testing. Sportsresearch.com Manufactured and quality tested in USA. Ingredients carefully sourced from around the world.

Plant-based 2-in-1 formula

Certified Vegan Vegan.org

Gluten free Non GMO Project Verified nongmoproject.org

Plant-based ingredients

FDA Disclaimer Statement

Note: This product has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

90 days money back guarantee Satisfaction guarantee We offer a full refund on the purchase price of your order (minus return cost) within 90 days of purchase. Restrictions apply. Please visit sportsresearch.com for full details. Please Recycle Instagram Facebook YouTube Snapchat Twitter @sportsresearch

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Certified Vegan Vegan.org Non GMO Project Verified nongmoproject.org cGMP Compliant Good Manufacturing Practice 3rd party quality tested

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, healthy adults take 1 liquid veggie softgel daily with food. Best when taken as directed by a qualified healthcare professional.

Precautions

Allergen warning: Contains tree nuts (coconut).

Caution: Keep out of reach of children and pets.

Caution: Keep out of reach of children and pets. Do not take with other vitamin D supplements. Do not exceed recommended daily intake. Do not use if safety seal is damaged or missing.

Consult with a qualified healthcare professional prior to using this product, especially if you are pregnant, nursing, have diagnosed medical conditions, or are taking prescription medications (e.g., anticoagulants [Coumadin/Warfarin]).

Note: This product is intended for individuals who are vitamin D deficient or do not obtain the RDI through their daily diet.

Brand IP Statement(s)

VegaDELight is a registered trademark of Nutraland USA, Inc. MenaQ7 is a registered trademark of NattoPharma ASA, Norway.

Storage

Store at room temperature, in a dry place. Protect product from excessive heat, freezing, humidity, and light.

See for yourself

D3 125 mcg + K2 100 mcg by SR SportsResearch label

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

What’s inside

The Ingredients in D3 125 mcg + K2 100 mcg by SR SportsResearch

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Liquid Veggie Softgel Dosage formSoftgel Capsule Servings per container120 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Vitamin D

Interacts with
715 drugs
125 mcg per serving Form: Cholecalciferol, Vitamin D3

Vitamin D is a fat-soluble vitamin that helps your body absorb calcium and is important for healthy bones, muscles, and immune function. Many people,...

Vitamin D monograph & interactions

Vitamin K

Interacts with
2 drugs
100 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: Organic Virgin Coconut Oil, Non-GMO Rice Bran Wax, Tapioca Starch, Modified, Glycerin, Water, Purified, Olive Oil. These complete the product’s ingredient list but are not active constituents.

Interaction report

D3 125 mcg + K2 100 mcg by SR SportsResearch Drug Interactions

Want to check YOUR meds against D3 125 mcg + K2 100 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
715Drugs
2 Major 80 Moderate 633 Minor

Ingredients driving the most interactions

Vitamin D 715

Each ingredient & the kinds of drugs it affects

For each ingredient in D3 125 mcg + K2 100 mcg with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitamin D8 drug types · 715 drugs

Aluminum

Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
The protein that transports calcium across the intestinal wall can also bind and transport aluminum. This protein is stimulated by vitamin D, which may therefore increase aluminum absorption. This mechanism may contribute to increased aluminum levels and toxicity in people with renal failure, when they take vitamin D and aluminum-containing phosphate binders chronically.

Likelihood Probable Evidence B
Atorvastatin (Lipitor)

Vitamin D might reduce absorption of atorvastatin.
A small, low-quality clinical study shows that taking vitamin D reduces levels of atorvastatin and its active metabolites by up to 55%. However, while atorvastatin levels decreased, total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol levels did not substantially change. Atorvastatin is metabolized in the gut by CYP3A4 enzymes, and researchers theorized that vitamin D might induce CYP3A4, causing reduced levels of atorvastatin. However, this proposed mechanism was not specifically studied.

Likelihood Probable Evidence B
Calcipotriene (Dovonex)

Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Calcipotriene is a vitamin D analog used topically for psoriasis. It can be absorbed in sufficient amounts to cause systemic effects, including hypercalcemia. Theoretically, combining calcipotriene with vitamin D supplements might increase the risk of hypercalcemia.

Likelihood Probable Evidence D
Digoxin (Lanoxin)

Theoretically, hypercalcemia induced by high-dose vitamin D can increase the risk of arrhythmia from digoxin.
High doses of vitamin D can cause hypercalcemia. Hypercalcemia increases the risk of fatal cardiac arrhythmias with digoxin. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and digoxin concurrently.

Likelihood Possible Evidence D
Diltiazem (Cardizem, Others)

Theoretically, hypercalcemia induced by high-dose vitamin D can reduce the therapeutic effects of diltiazem for arrhythmia.
High doses of vitamin D can cause hypercalcemia. Hypercalcemia can reduce the effectiveness of verapamil in atrial fibrillation. Theoretically this could also occur with diltiazem. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and diltiazem concurrently.

Likelihood Probable Evidence B
Thiazide Diuretics

Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Thiazide diuretics decrease urinary calcium excretion, which could lead to hypercalcemia if vitamin D supplements are taken concurrently. This has been reported in people being treated with vitamin D for hypoparathyroidism, and also in elderly people with normal parathyroid function who were taking a thiazide, vitamin D, and calcium-containing antacids daily.

Likelihood Probable Evidence D
Verapamil (Calan, Others)

Hypercalcemia induced by high-dose vitamin D can reduce the therapeutic effects of verapamil for arrhythmia.
Hypercalcemia due to high doses of vitamin D can reduce the effectiveness of verapamil in atrial fibrillation. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and verapamil concurrently.

Likelihood Probable Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.
There is some concern that vitamin D might induce CYP3A4. In vitro research suggests that vitamin D induces CYP3A4 transcription. Additionally, observational research has found that increased UV light exposure and serum vitamin D levels are associated with decreased serum levels of CYP3A4 substrates such as tacrolimus and sirolimus, while no association between UV light exposure or vitamin D levels and levels of mycophenolic acid, a non-CYP3A4 substrate, was found. A small, low-quality clinical study shows that taking vitamin D reduces levels of the CYP3A4 substrate atorvastatin and its active metabolites by up to 55%; however, the clinical effects of atorvastatin were not reduced. While researchers theorized that vitamin D might induce CYP3A4, this proposed mechanism was not specifically studied.

Likelihood Possible Evidence D

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
The maker

Brand information

Manufacturer and brand details for D3 125 mcg + K2 100 mcg, from the product label.

SR SportsResearch

See all SR SportsResearch products
Name
Sports Research
Street Address
784 Channel St.
City
San Pedro
State
CA
ZipCode
90731
Phone Number
(310) 519-1484
Web Address
sportsresearch.com
Pharmacist Counseling Corner

D3 125 mcg + K2 100 mcg by SR SportsResearch: Common Questions

Does D3 125 mcg + K2 100 mcg by SR SportsResearch interact with any medications?
Yes. Based on its ingredients, D3 125 mcg + K2 100 mcg has a known interaction with 715 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?
D3 125 mcg + K2 100 mcg contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Is this safe to take if I'm pregnant or breastfeeding?
The data on vitamin D in pregnancy is mixed — some shows it's likely safe at recommended amounts, and some advises caution. Vitamin K is considered likely safe in both pregnancy and breastfeeding. Talk with your doctor before taking this product during pregnancy or while breastfeeding to make sure it's right for your situation.
Can this really interact with so many medications?
The 716 number counts individual medications across both ingredients combined, many of which share the same interaction pathway. For example, vitamin D affects several different heart and cholesterol drugs through the same mechanism. Your own medications may or may not be in that count — that's why checking your specific drugs with the tool on this page matters.
What are the most common side effects?
Vitamin D at recommended doses is well tolerated. Vitamin K can cause mild stomach upset — nausea, diarrhea, or abdominal discomfort — in some people. Serious side effects from either ingredient are rare at normal doses, but very high doses of vitamin D over time can cause vitamin D toxicity.
Will this help my bones?
Vitamin D is established as effective for treating rickets and osteomalacia. Vitamin K is possibly effective for osteoporosis, though the evidence isn't as strong. If you're taking this for bone health, talk with your doctor about what your individual needs are.
Why does this product have both D3 and K2?
Both vitamins play roles in bone and calcium health — vitamin D helps your body absorb calcium, and vitamin K is involved in bone formation. The product combines them for their complementary effects, but that also means you need to check both ingredients against your medications.
Does this product have any fillers or other ingredients I should know about?
The softgel contains organic virgin coconut oil, rice bran wax, modified tapioca starch, glycerin, purified water, and olive oil as inactive ingredients. These help deliver and stabilize the vitamins but aren't active components themselves.

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

Not sure if D3 125 mcg + K2 100 mcg is safe with your meds?

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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.

D3 125 mcg + K2 100 mcg label
Sources

Sources & How We Checked

D3 125 mcg + K2 100 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 37 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 D 26 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Tatro DS, ed. Drug Interactions Facts. Facts and Comparisons Inc., St. Louis, MO. 1999.
  3. Koutkia P, Chen TC, Holick MF. Vitamin D intoxication associated with an over-the-counter supplement. N Engl J Med 2001;345:66-7. PubMed
  4. Bar-Or D, Yoel G. Calcium and calciferol antagonize effect of verapamil in atrial fibrillation. Br Med J 1981;282:1585-6.
  5. Demontis R, Leflon A, Fournier A, et al. 1 alpha(OH) vitamin D3 increases plasma aluminum in hemodialyzed patients taking AI(OH)3. Clin Nephrol 1986;26:146-9.
  6. Crowe M, Wollner L, Griffiths RA. Hypercalcemia following vitamin D and thiazide therapy in the elderly. Practitioner 1984;228:312-3.
  7. Parfitt AM. Thiazide-induced hypercalcemia in vitamin D-treated hypoparathyroidism. Ann Intern Med 1972;77:557-63. PubMed
  8. Thiazide diuretics and the risk of osteoporosis. Pharmacist's Letter/Prescriber's Letter 2003;19(11):191105.
  9. Moon J. The role of vitamin D in toxic metal absorption. J Am Coll Nutr 1994;13:559-64.
  10. Demontis R, Reissi D, Noel C, et al. Indirect clinical evidence that 1alphaOH vitamin D<SUB>3</SUB> increases the intestinal absorption of aluminum. Clin Nephrol 1989;31:123-7.
  11. Adler AJ, Berlyne GM. Duodenal aluminum absorption in the rat: effect of vitamin D. Am J Physiol 1985;249:G209-13. PubMed
  12. Schwartz JB. Effects of vitamin D supplementation in atorvastatin-treated patients: A new drug interaction with an unexpected consequence. Clin Pharmacol Ther 2009;85:198-203. PubMed
  13. Dietary reference intakes for calcium and vitamin D. Institute of Medicine, November 30, 2010. Available at: http://www.iom.edu/~/media/Files/Report%20Files/2010/Dietary-Reference-Intakes-for-Calcium-and-Vitamin-D/Vitamin%20D%20and%20Calcium%202010%20Repo
  14. Cox KA, Dunn MA. Aluminum toxicity alters the regulation of calbindin-D28k protein and mRNA expression in chick intestine. J Nutr 2001;131:2007-13. PubMed
  15. Escribano, J., Balaguer, A., Pagone, F., Feliu, A., and Roque, I. Figuls. Pharmacological interventions for preventing complications in idiopathic hypercalciuria. Cochrane.Database.Syst.Rev. 2009;(1):CD004754. PubMed
  16. Carlton, S., Clopton, D., and Cappuzzo, K. A. Vitamin D deficiency: appropriate replenishment therapies and the effects of vitamin D toxicity. Consult Pharm 2010;25(3):171-177. PubMed
  17. Wang, H., Xia, N., Yang, Y., and Peng, D. Q. Influence of vitamin D supplementation on plasma lipid profiles: a meta-analysis of randomized controlled trials. Lipids Health Dis. 2012;11:42. PubMed
  18. Turner AN, Carr Reese P, Fields KS, Anderson J, Ervin M, Davis JA, Fichorova RN, Roberts MW, Klebanoff MA, Jackson RD. A blinded, randomized controlled trial of high-dose vitamin D supplementation to reduce recurrence of bacterial vaginosis. Am J Obstet G PubMed
  19. Weiner M, Epstein FH. Signs and symptoms of electrolyte disorders. Yale J Biol Med. 1970;43(2):76-109.
  20. Lappe J, Watson P, Travers-Gustafson D, Recker R, Garland C, Gorham E, Baggerly K, McDonnell SL. Effect of Vitamin D and Calcium Supplementation on Cancer Incidence in Older Women: A Randomized Clinical Trial. JAMA. 2017 Mar 28;317(12):1234-1243. PubMed
  21. Roth DE, Leung M, Mesfin E, Qamar H, Watterworth J, Papp E. Vitamin D supplementation during pregnancy: state of the evidence from a systematic review of randomised trials. BMJ. 2017;359:j5237. PubMed
  22. Murai IH, Fernandes AL, Sales LP, et al. Effect of a single high dose of vitamin D3 on hospital length of stay in patients with moderate to severe COVID-19: A randomized clinical trial. JAMA. 2021.
  23. Wang Z, Schuetz EG, Xu Y, Thummel KE. Interplay between vitamin D and the drug metabolizing enzyme CYP3A4. J Steroid Biochem Mol Biol 2013;136:54-8. PubMed
  24. Doyle D, Browne U, Brickley A, Murphy D. Vitamin D-induced hypercalcaemia and acute kidney injury in sarcoidosis. BMJ Case Rep 2023;16(1):e250580. PubMed
  25. Williamson A, Martineau AR, Sheikh A, Jolliffe D, Griffiths CJ. Vitamin D for the management of asthma. Cochrane Database Syst Rev 2023;2(2):CD011511. PubMed
  26. Kinesya E, Santoso D, Gde Arya N, et al. Vitamin D as adjuvant therapy for diabetic foot ulcers: Systematic review and meta-analysis approach. Clin Nutr ESPEN 2023;54:137-143. PubMed

See these in context on the Vitamin D monograph →

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

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