K-2 100 mcg MK7 D3 125 mcg (5,000 IU) Ingredients & Drug Interactions
What is this page for?
First and foremost: checking K-2 100 mcg MK7 D3 125 mcg (5,000 IU) 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
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) is a dietary supplement by Superior Source with 3 active ingredients. Its ingredients are commonly taken for bone health and osteoporosis, correcting vitamin d deficiency, immune system support.Based on those ingredients, 885 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin D, Stevia leaf extract, Vitamin K. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source
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HelloPharmacist Scorecard of K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source
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.
What’s inside
Full disclosure
This tablet contains three active ingredients: vitamin D (125 mcg, or 5,000 IU), vitamin K as menaquinone-7 (K-2, 100 mcg), and stevia leaf extract. The inactive ingredients are lactose and acacia gum.
Vitamin D helps your body absorb calcium and is used to treat bone diseases and low calcium levels. Vitamin K helps your blood clot and supports bone health.
Stevia is a sweetener derived from the stevia plant leaf.
Does it work?
Strong evidence
Vitamin D in this product is effective for rickets, osteomalacia (soft bones from vitamin D deficiency), renal osteodystrophy (bone disease from kidney failure), hypoparathyroidism (low parathyroid hormone), and familial hypophosphatemia (a genetic disorder affecting phosphate). Vitamin K is effective for conditions involving deficient blood-clotting factors and warfarin overtreatment, and shows possibly effective evidence for osteoporosis.
Stevia's effects on diabetes, high blood pressure, and weight are not yet established in the data we hold.
How safe is it?
Well-documented data
Vitamin D is generally well tolerated at recommended doses, though very high doses over time can cause toxicity — symptoms include high blood calcium levels, which may show as bone loss, kidney problems, or anemia. Stevia appears well tolerated in food amounts, but whole-leaf or supplement doses are not well studied; minor effects like bloating, dizziness, headache, muscle pain, nausea, and numbness have been reported and often fade after the first week.
Rare allergic reactions to stevia are possible. Vitamin K taken by mouth is well tolerated; the most common side effects are mild stomach upset, nausea, and diarrhea.
For pregnancy: vitamin D is likely safe at recommended amounts but should be used only under your doctor's guidance. Stevia has insufficient data on file — talk with your doctor before taking this product if you're pregnant or breastfeeding.
Vitamin K is likely safe during pregnancy and lactation.
Meds to double-check
Major interaction found
Before taking this product, double-check with your doctor or pharmacist if you take warfarin or other blood thinners — vitamin K directly reverses warfarin's effect. Also flag thiazide diuretics, verapamil, diltiazem, digoxin, atorvastatin, or any psoriasis cream containing calcipotriene, which interact with the vitamin D dose here.
If you take blood pressure or diabetes medications, or lithium, mention those as well — stevia can theoretically add to their effects. Your pharmacist can confirm whether any of your medications are among the 886 documented to interact with these ingredients.
The bottom line
Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Major medication interactions have been identified, and safety information is well characterized.
This product is intended for people who need vitamin D for bone health or deficiency, combined with vitamin K support. If you take warfarin, blood pressure medications, diabetes medications, lithium, digoxin, statins, or certain other heart or psoriasis medications, check with your doctor or pharmacist before starting — the interactions can be meaningful.
At the stated dose, vitamin D (5,000 IU) is above the recommended daily amount for many people, so this is best used under medical guidance rather than as a daily multivitamin.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 24, 2020.
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
General information
Key facts about K-2 100 mcg MK7 D3 125 mcg (5,000 IU), straight from the product label.
| Brand | Superior Source |
|---|---|
| Net contents | 60 MicroLingual(R) Instant Dissolve Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Jun 24, 2020 |
| DSLD ID | 228043 |
| Product type | Botanical With Nutrients |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other |
| Intended target group(s) | Adult (18 - 50 Years) |
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 K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D | 125 mcg | 625% |
| Stevia leaf extract | 1 mg | -- |
| Vitamin K | 100 mcg | 83.3% |
Other ingredients: Lactose, Acacia Gum
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, dissolve one MicroLingual tablet under the tongue as directed by your healthcare provider. This product may also be chewed/swallowed.
Precautions
Warnings: Individuals taking this product should discuss vitamin D intake with their healthcare provider.
If you are currently taking any anti-coagulant drugs (warfarin, coumadin, heparin, i.e.) or if you are pregnant/lactating, consult your healthcare provider before consumption.
Keep out of the reach of children.
Allergen Statement: Contains milk.
Formulation
GMO free
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container60 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 with715 drugs
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 & interactionsStevia leaf extract
Interacts with259 drugs
Stevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regu...
Stevia leaf extract monograph & interactionsVitamin K
Interacts with2 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 suppl...
Vitamin K monograph & interactionsOther (inactive) ingredients: Lactose, Acacia Gum. These complete the product’s ingredient list but are not active constituents.
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source Drug Interactions
HelloPharmacist Interaction Report
Superior Source K-2 100 mcg MK7 D3 125 mcg (5,000 IU) does interact with medications through its vitamin D and vitamin K content.
The most serious interaction is vitamin K with warfarin (a blood thinner): vitamin K directly counteracts warfarin's effect and can reverse its ability to prevent clots. If you take warfarin, do not use this product without checking with your doctor first.
Read the full breakdown — every affected drug type, severity by severity
Vitamin D in this product can pose a Moderate-severity risk with several medication types. Thiazide diuretics, calcium channel blockers (verapamil and diltiazem), digoxin (a heart medication), and calcipotriene (a topical psoriasis treatment) all interact because high-dose vitamin D can raise your blood calcium level, which either increases the risk of irregular heartbeats or reduces how well these drugs work.
Vitamin D may also reduce absorption of atorvastatin (a statin for cholesterol) and theoretically increase aluminum absorption in people with kidney failure.
Stevia leaf extract in this product carries Minor-severity interactions with blood pressure medications and diabetes medications — theoretically it could lower blood pressure or blood sugar too much when combined with these drugs. Additionally, stevia might increase lithium levels in people taking it for bipolar disorder, a Moderate-severity concern.
Vitamin D may also induce certain liver enzymes (CYP3A4), potentially reducing levels of some medications that rely on those enzymes. Altogether, these interactions span 886 individual medications.
Run your exact medications through the search tool on this page before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against K-2 100 mcg MK7 D3 125 mcg (5,000 IU)?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in K-2 100 mcg MK7 D3 125 mcg (5,000 IU) interact with 885 drugs. Click any drug to see the details.
3 of the 3 ingredients in K-2 100 mcg MK7 D3 125 mcg (5,000 IU) interact with drugs. Each result below shows which ingredient is responsible. Vitamin D Stevia leaf extract Vitamin K
WarfarinWarfarin
How Warfarin interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin KWarfarin (coumadin) Major
Interaction Summary
Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Read the full Vitamin K + Warfarin interactionVitamin DCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.
Read the full Vitamin D + Warfarin interactionWarfarin SodiumCoumadin, Panwarfin, Sofarin
How Warfarin Sodium interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin KWarfarin (coumadin) Major
Interaction Summary
Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Read the full Vitamin K + Warfarin Sodium interactionVitamin DCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.
Read the full Vitamin D + Warfarin Sodium interactionAlginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Alginic Acid, Aluminum Hydroxide interactionAluminum Acetate, Benzethonium ChlorideBuro-Sol Otic Solution
How Aluminum Acetate, Benzethonium Chloride interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Acetate, Benzethonium Chloride interactionAluminum ChlorideAluminum Chloride, Anhydrol Forte, Driclor, Drysol
How Aluminum Chloride interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Chloride interactionAluminum HydroxideAlu-Cap, Amphojel, Gaviscon
How Aluminum Hydroxide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Hydroxide interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAluminum Hydroxide, Magnesium Hydroxide (otc Drug)Maalox, Mucogel
How Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interactionAluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug)Mylanta
How Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interactionAluminum, CalciumDomeboro
How Aluminum, Calcium interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum, Calcium interactionAluminum, Magnesium (otc Drug)Almagel
How Aluminum, Magnesium (otc Drug) interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum, Magnesium (otc Drug) interactionAluminum, Magnesium Hydroxide (otc Drug)Wingel
How Aluminum, Magnesium Hydroxide (otc Drug) interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aluminum, Magnesium Hydroxide (otc Drug) interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Amiloride, Hydrochlorothiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Amiloride, Hydrochlorothiazide interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAluminum Moderate
Interaction Summary
Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
Read the full Vitamin D + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Atenolol, Chlortalidone interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Atenolol, Chlorthalidone interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Atenolol, Chlorthalidone interactionAtorvastatinAtorvaliq
How Atorvastatin interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DCytochrome P450 3a4 (cyp3a4) Substrates, Atorvastatin (lipitor) Moderate
Interaction Summary
Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.
Read the full Vitamin D + Atorvastatin interactionAtorvastatin CalciumLipitor
How Atorvastatin Calcium interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DAtorvastatin (lipitor), Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Vitamin D might reduce absorption of atorvastatin.
Read the full Vitamin D + Atorvastatin Calcium interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Azilsartan, Chlorthalidone interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Azilsartan, Chlorthalidone interactionBenazepril, HydrochlorothiazideLotensin HCT
How Benazepril, Hydrochlorothiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Benazepril, Hydrochlorothiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Benazepril, Hydrochlorothiazide interactionBendroflumethiazideAprinox, Naturetin, Neo-NaClex
How Bendroflumethiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Bendroflumethiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Bendroflumethiazide interactionBendroflumethiazide, NadololCorzide
How Bendroflumethiazide, Nadolol interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Bendroflumethiazide, Nadolol interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Bendroflumethiazide, Nadolol interactionBendroflumethiazide, PotassiumCentyl K, Neo-NaClex-K
How Bendroflumethiazide, Potassium interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Bendroflumethiazide, Potassium interactionBendroflumethiazide, Rauwolfia SerpentinaRauzide
How Bendroflumethiazide, Rauwolfia Serpentina interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Bendroflumethiazide, Rauwolfia Serpentina interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Bendroflumethiazide, Rauwolfia Serpentina interactionBenzthiazideExna
How Benzthiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Benzthiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Benzthiazide interactionBetamethasone Dipropionate, CalcipotrieneEnstilar, Wynzora
How Betamethasone Dipropionate, Calcipotriene interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DCalcipotriene (dovonex) Moderate
Interaction Summary
Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Read the full Vitamin D + Betamethasone Dipropionate, Calcipotriene interactionBisoprolol, HydrochlorothiazideZiac
How Bisoprolol, Hydrochlorothiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Bisoprolol, Hydrochlorothiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Bisoprolol, Hydrochlorothiazide interactionCalcipotrieneDovonex
How Calcipotriene interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 1 ingredient. Tap an ingredient for the detail:
Vitamin DCalcipotriene (dovonex) Moderate
Interaction Summary
Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Read the full Vitamin D + Calcipotriene interactionCandesartan Cilexetil, HydrochlorothiazideAtacand HCT
How Candesartan Cilexetil, Hydrochlorothiazide interacts with K-2 100 mcg MK7 D3 125 mcg (5,000 IU) — through 2 ingredients. Tap an ingredient for the detail:
Vitamin DThiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D + Candesartan Cilexetil, Hydrochlorothiazide interactionStevia Leaf ExtractAntihypertensive Drugs Minor
Interaction Summary
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Read the full Stevia Leaf Extract + Candesartan Cilexetil, Hydrochlorothiazide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in K-2 100 mcg MK7 D3 125 mcg (5,000 IU) 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 D
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.
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.
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.
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.
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.
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.
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.
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.
Stevia leaf extract
Lithium
Theoretically, stevia might decrease clearance and increase levels of lithium.
Animal research suggests that stevia extracts might have diuretic activity. Theoretically, increased reabsorption of lithium along with sodium might reduce excretion and increase levels of lithium.
Antidiabetes Drugs
Theoretically, stevia might increase the risk for hypoglycemia when combined with antidiabetes drugs.
Preliminary clinical research in patients with type 2 diabetes suggests that taking a single dose of stevia extract 1000 mg reduces postprandial blood glucose levels when taken with a meal. However, other clinical research in patients with type 1 or type 2 diabetes suggests that taking stevioside 250 mg three times daily does not significantly affect blood glucose levels or glycated hemoglobin (HbA1C) after three months of treatment.
Antihypertensive Drugs
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Stevia extract and stevioside might lower blood pressure in patients with hypertension. However, other clinical research suggests that stevioside does not significantly lower blood pressure in patients with hypertension.
Vitamin K
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.
Brand information
Manufacturer and brand details for K-2 100 mcg MK7 D3 125 mcg (5,000 IU), from the product label.
Superior Source
See all Superior Source products- Name
- Superior Source
- City
- Los Angeles
- State
- CA
- ZipCode
- 90058
- Phone Number
- (800) 421-6175
- Web Address
- www.superiorsourcevitamins.com
K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source: Common Questions
Does K-2 100 mcg MK7 D3 125 mcg (5,000 IU) by Superior Source interact with any medications?
How can one product interact with so many drugs?
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Can I take this if I'm on warfarin or another blood thinner?
Is the vitamin D dose in this safe?
Will stevia cause side effects?
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What is vitamin K2 (menaquinone), and how is it different from vitamin K1?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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The Full Monographs Behind K-2 100 mcg MK7 D3 125 mcg (5,000 IU)’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Vitamin D
Interacts with 715 drugsVitamin D is a fat-soluble vitamin that helps your body absorb calcium and is important for healthy bones, muscles, and immune function. Many people, especially those with low sun exposure,...
Read the full Vitamin D monograph → Herb & supplement monographStevia
Interacts with 259 drugsStevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regulators. Purified stevia extracts have a...
Read the full Stevia monograph → Herb & supplement monographVitamin K
Interacts with 2 drugsVitamin 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 & How We Checked
K-2 100 mcg MK7 D3 125 mcg (5,000 IU)'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 47 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
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Tatro DS, ed. Drug Interactions Facts. Facts and Comparisons Inc., St. Louis, MO. 1999.
- 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
- Bar-Or D, Yoel G. Calcium and calciferol antagonize effect of verapamil in atrial fibrillation. Br Med J 1981;282:1585-6.
- 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.
- Crowe M, Wollner L, Griffiths RA. Hypercalcemia following vitamin D and thiazide therapy in the elderly. Practitioner 1984;228:312-3.
- Parfitt AM. Thiazide-induced hypercalcemia in vitamin D-treated hypoparathyroidism. Ann Intern Med 1972;77:557-63. PubMed
- Thiazide diuretics and the risk of osteoporosis. Pharmacist's Letter/Prescriber's Letter 2003;19(11):191105.
- Moon J. The role of vitamin D in toxic metal absorption. J Am Coll Nutr 1994;13:559-64.
- 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.
- Adler AJ, Berlyne GM. Duodenal aluminum absorption in the rat: effect of vitamin D. Am J Physiol 1985;249:G209-13. PubMed
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- Weiner M, Epstein FH. Signs and symptoms of electrolyte disorders. Yale J Biol Med. 1970;43(2):76-109.
- 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
- 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
- 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.
- 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
- 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
- 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
- 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
Stevia 10 references
- Chan P, Xu DY, Liu JC, et al. The effect of stevioside on blood pressure and plasma catecholamines in spontaneously hypertensive rats. Life Sci 1998;63:1679-84. PubMed
- Melis MS. A crude extract of Stevia rebaudiana increases the renal plasma flow of normal and hypertensive rats. Braz J Med Biol Res 1996;29:669-75.
- Melis MS. Chronic administration of aqueous extract of Stevia rebaudiana in rats: renal effects. J Ethnopharmacol 1995;47:129-34. PubMed
- Melis MS, Sainati AR. Effect of calcium and verapamil on renal function of rats during treatment with stevioside. J Ethnopharmacol 1991;33:257-622. PubMed
- Hsieh MH, Chan P, Sue YM, et al. Efficacy and tolerability of oral stevioside in patients with mild essential hypertension: a two-year, randomized, placebo-controlled study. Clin Ther 2003;25:2797-808. PubMed
- Chan P, Tomlinson B, Chen YJ, et al. A double-blind placebo-controlled study of the effectiveness and tolerability of oral stevioside in human hypertension. Br J Clin Pharmacol 2000;50:215-20. PubMed
- Gregersen S, Jeppesen PB, Holst JJ, Hermansen K. Antihyperglycemic effects of stevioside in type 2 diabetic subjects. Metabolism 2004;53:73-6. PubMed
- Barriocanal LA, Palacios M, Benitez G, et al. Apparent lack of pharmacological effect of steviol glycosides used as sweeteners in humans. A pilot study of repeated exposures in some normotensive and hypotensive individuals and in Type 1 and Type 2 diabeti
- Ferri LA, Alves-Do-Prado W, Yamada SS, et al. Investigation of the antihypertensive effect of oral crude stevioside in patients with mild essential hypertension. Phytother Res 2006;20:732-6. PubMed
- Almiron-Roig E, Navas-Carretero S, Castelnuovo G, et al. Impact of acute consumption of beverages containing plant-based or alternative sweetener blends on postprandial appetite, food intake, metabolism, and gastro-intestinal symptoms: Results of the SWEE
Vitamin K 11 references
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- 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.
- 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
- Dietary vitamin K guidance: an effective strategy for stable control of oral anticoagulation? Nutr Rev. 2010;68(3):178-81. PubMed
- 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
- 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
- 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
- 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
- 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.
- 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
- 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
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