Vitamin D-3 5,000 IU Ingredients & Drug Interactions
by Source Naturals
What is this page for?
First and foremost: checking Vitamin D-3 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
Vitamin D-3 5,000 IU is a dietary supplement by Source Naturals with 1 active ingredient. 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 moderate. The ingredients most likely to interact are Vitamin D3. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Vitamin D-3 5,000 IU by Source Naturals
Ask about any prescription or over-the-counter medication and we check it for interactions with Vitamin D-3 5,000 IU by Source Naturals — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Vitamin D-3 5,000 IU by Source Naturals
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 product contains one active ingredient: vitamin D3 (cholecalciferol), the form of vitamin D your body produces naturally when skin is exposed to sunlight. Each softgel delivers 5,000 IU.
The inactive ingredients are rice bran oil, gelatin, glycerin, and purified water.
Does it work?
Strong evidence
Vitamin D3 is effective for treating rickets, osteomalacia (soft bones), familial hypophosphatemia (a genetic disorder affecting phosphate levels), hypoparathyroidism (underactive parathyroid glands), and renal osteodystrophy (bone disease from kidney failure). The evidence we hold does not cover other uses.
How safe is it?
Well-documented data
Vitamin D is generally well tolerated at recommended doses. This product provides 5,000 IU daily, which exceeds the tolerable upper intake level for adults (4,000 IU) established by health authorities—very high doses over time can cause vitamin D toxicity with symptoms including high blood calcium, bone loss, and in children, stunted growth.
Serious adverse effects are rare but can include calcification of the eye and light sensitivity. Our data shows vitamin D is often used during pregnancy and breastfeeding at recommended amounts, but any use should be under your doctor's guidance, and we have no additional safety information on file for pregnancy and lactation with this specific formulation.
Meds to double-check
Moderate interaction found
Before you take this, check with your pharmacist if you're on thiazide diuretics, verapamil, diltiazem, digoxin, atorvastatin, or calcipotriene, or if you use aluminum-containing antacids (particularly if you have kidney disease). These moderate and minor interactions may affect how those medications work or increase the risk of high blood calcium.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Vitamin D3 is well established for bone and mineral disorders like rickets and hypoparathyroidism. At 5,000 IU daily, this dose is above standard recommendations, so talk with your pharmacist or doctor before starting, especially if you take heart medications, diuretics, cholesterol drugs, or digoxin.
If you're pregnant or breastfeeding, check with your doctor first.
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 Jul 18, 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
General information
Key facts about Vitamin D-3 5,000 IU, straight from the product label.
| Brand | Source Naturals |
|---|---|
| Barcode (UPC) | 021078023845 |
| Net contents | 200 Softgel(s) |
| Market status | On market |
| Date entered into DSLD | Jul 18, 2023 |
| DSLD ID | 296368 |
| Product type | Vitamin |
| Supplement form | Softgel Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free |
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 D-3 5,000 IU by Source Naturals, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D3 | 5000 IU | 1250% |
Other ingredients: Rice Bran Oil, Gelatin, Glycerin, Water, Purified
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.
FDA Statement of Identity
Dietary Supplement
Formulation
Bone and immune health
Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat.
Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Suggested/Recommended/Usage/Directions
Suggested use: 1 softgel daily with a meal.
Formula
Sunlight is a source of life on Earth, but we may not be aware of all the ways it benefits us. Our bodies manufacture vitamin D-3 when the skin is exposed to UV radiation from sunlight, but the ability to do so decreases as we age. Vitamin D-3 helps maintain healthy calcium and phosphorus levels in the body for strong bones; it supports increased muscle strength in older adults; and it also plays an active role in a healthy immune response. Vitamin D-3 (cholecalciferol) is the optimal form of vitamin D. It is the form of vitamin D that the body manufactures in sunlight, and the form most efficient for the body's needs.
Precautions
Caution: If you are pregnant, may become pregnant, breastfeeding, have kidney, parathyroid or other disease or are taking any prescription drugs, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Brand IP Statement(s)
Copyright Source Naturals, Inc.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Vitamin D-3 5,000 IU by Source Naturals 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 Vitamin D-3 5,000 IU by Source Naturals
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Softgel(s) Dosage formSoftgel Capsule Servings per container200 Amounts shown are per serving.
Vitamin D3
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 D3 monograph & interactionsOther (inactive) ingredients: Rice Bran Oil, Gelatin, Glycerin, Water, Purified. These complete the product’s ingredient list but are not active constituents.
Vitamin D-3 5,000 IU by Source Naturals Drug Interactions
HelloPharmacist Interaction Report
Vitamin D-3 5,000 IU by Source Naturals does interact with several medication types.
The most serious concern is with thiazide diuretics (water pills)—at this dose, vitamin D can theoretically raise your blood calcium (hypercalcemia) when combined with these drugs, which already reduce how much calcium your kidneys flush out.
Read the full breakdown — every affected drug type, severity by severity
Other moderate-severity interactions exist with heart rhythm medications (verapamil and diltiazem), where high-dose vitamin D can reduce their effectiveness by raising blood calcium. Similarly, high-dose vitamin D can increase the risk of dangerous heart rhythms if you're on digoxin (a heart medication), and it may reduce how well your body absorbs atorvastatin (a cholesterol drug)—though one small study showed cholesterol levels didn't change despite lower drug levels.
You should also avoid combining this supplement with calcipotriene (a vitamin D-like psoriasis cream) due to the hypercalcemia risk, and be cautious if you take aluminum-containing products, as vitamin D may increase aluminum absorption (mainly a concern if you have kidney disease).
Vitamin D may also induce an enzyme (CYP3A4) that your liver uses to break down certain medications, potentially reducing their effectiveness, though this is rated a minor concern. Altogether, these interactions span 705 individual medications.
Check your exact prescriptions with the tool on this page before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Vitamin D-3 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 Vitamin D-3 5,000 IU interact with 715 drugs. Click any drug to see the details.
1 of the 1 ingredient in Vitamin D-3 5,000 IU interact with drugs. Each result below shows which ingredient is responsible. Vitamin D3
Alginic Acid, Aluminum HydroxideRafton
How Alginic Acid, Aluminum Hydroxide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Alginic Acid, Aluminum Hydroxide interactionAluminum Acetate, Benzethonium ChlorideBuro-Sol Otic Solution
How Aluminum Acetate, Benzethonium Chloride interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Acetate, Benzethonium Chloride interactionAluminum ChlorideAluminum Chloride, Anhydrol Forte, Driclor, Drysol
How Aluminum Chloride interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Chloride interactionAluminum HydroxideAlu-Cap, Amphojel, Gaviscon
How Aluminum Hydroxide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Hydroxide interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAluminum Hydroxide, Magnesium Hydroxide (otc Drug)Maalox, Mucogel
How Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Hydroxide, Magnesium Hydroxide (otc Drug) interactionAluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug)Mylanta
How Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (otc Drug) interactionAluminum, CalciumDomeboro
How Aluminum, Calcium interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum, Calcium interactionAluminum, Magnesium (otc Drug)Almagel
How Aluminum, Magnesium (otc Drug) interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum, Magnesium (otc Drug) interactionAluminum, Magnesium Hydroxide (otc Drug)Wingel
How Aluminum, Magnesium Hydroxide (otc Drug) interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aluminum, Magnesium Hydroxide (otc Drug) interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Amiloride, Hydrochlorothiazide interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Aluminum 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 D3 + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Atenolol, Chlorthalidone interactionAtorvastatinAtorvaliq
How Atorvastatin interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Cytochrome 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 D3 + Atorvastatin interactionAtorvastatin CalciumLipitor
How Atorvastatin Calcium interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Atorvastatin (lipitor), Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Vitamin D might reduce absorption of atorvastatin.
Read the full Vitamin D3 + Atorvastatin Calcium interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Azilsartan, Chlorthalidone interactionBenazepril, HydrochlorothiazideLotensin HCT
How Benazepril, Hydrochlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Benazepril, Hydrochlorothiazide interactionBendroflumethiazideAprinox, Naturetin, Neo-NaClex
How Bendroflumethiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Bendroflumethiazide interactionBendroflumethiazide, NadololCorzide
How Bendroflumethiazide, Nadolol interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Bendroflumethiazide, Nadolol interactionBendroflumethiazide, PotassiumCentyl K, Neo-NaClex-K
How Bendroflumethiazide, Potassium interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Bendroflumethiazide, Potassium interactionBendroflumethiazide, Rauwolfia SerpentinaRauzide
How Bendroflumethiazide, Rauwolfia Serpentina interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Bendroflumethiazide, Rauwolfia Serpentina interactionBenzthiazideExna
How Benzthiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Benzthiazide interactionBetamethasone Dipropionate, CalcipotrieneEnstilar, Wynzora
How Betamethasone Dipropionate, Calcipotriene interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Calcipotriene (dovonex) Moderate
Interaction Summary
Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Read the full Vitamin D3 + Betamethasone Dipropionate, Calcipotriene interactionBisoprolol, HydrochlorothiazideZiac
How Bisoprolol, Hydrochlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Bisoprolol, Hydrochlorothiazide interactionCalcipotrieneDovonex
How Calcipotriene interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Calcipotriene (dovonex) Moderate
Interaction Summary
Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Read the full Vitamin D3 + Calcipotriene interactionCandesartan Cilexetil, HydrochlorothiazideAtacand HCT
How Candesartan Cilexetil, Hydrochlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Candesartan Cilexetil, Hydrochlorothiazide interactionCaptopril, HydrochlorothiazideAcezide, Capozide
How Captopril, Hydrochlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Captopril, Hydrochlorothiazide interactionChlorothiazideDiuril
How Chlorothiazide interacts with Vitamin D-3 5,000 IU — through 1 ingredient. Tap an ingredient for the detail:
Vitamin D3Thiazide Diuretics Moderate
Interaction Summary
Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Read the full Vitamin D3 + Chlorothiazide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Vitamin D-3 5,000 IU 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 D3
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.
Brand information
Manufacturer and brand details for Vitamin D-3 5,000 IU, from the product label.
Source Naturals
- Name
- Source Naturals, Inc.
- Street Address
- P. O. Box 2118
- City
- Santa Cruz
- State
- CA
- ZipCode
- 95062
- Web Address
- www.sourcenaturals.com
Vitamin D-3 5,000 IU by Source Naturals: Common Questions
Does Vitamin D-3 5,000 IU by Source Naturals interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is 5,000 IU a safe daily dose?
What happens if I take too much vitamin D3?
Can I take this if I'm pregnant or breastfeeding?
What conditions does vitamin D3 actually treat?
Will this interact with my heart medications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Vitamin D-3 5,000 IU is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Vitamin D-3 5,000 IU’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Vitamin D-3 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 26 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
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