Vein Support Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Vein Support 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
Vein Support is a dietary supplement by Doctor's Best with 3 active ingredients. Its ingredients are commonly taken for supporting normal blood clotting, bone health, heart and vascular health.Based on those ingredients, 884 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are DiosVein Diosmin EP, Vitamin K2. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Vein Support by Doctor's Best
Ask about any prescription or over-the-counter medication and we check it for interactions with Vein Support by Doctor's Best — 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 Vein Support by Doctor's Best
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
Vein Support has 3 active ingredients. Vitamin K2 supports your body's ability to produce clotting factors — proteins your blood needs to clot properly.
DiosVein Diosmin EP is a plant compound extracted from citrus that's used to support vein and blood vessel health. Natural Orange extract rounds out the formula, though we can't verify its specific role here.
The capsule also contains inactive ingredients like rice powder, magnesium stearate, and silica — common fillers and binders that help hold the capsule together.
Does it work?
Moderate evidence
For vein health specifically, the data shows DiosVein Diosmin EP is possibly effective for chronic venous insufficiency (heaviness or swelling in the legs) and venous leg ulcers. Evidence for other uses — back pain and diabetic nerve pain — is insufficient, so we don't know if it works there yet.
Vitamin K2's role in this formula is less clear from the facts provided. We know it's effective for certain bleeding disorders and bone density, but its contribution to vein support isn't detailed here.
How safe is it?
Well-documented data
Vitamin K2 is generally well tolerated when taken by mouth in typical supplement amounts. The most common mild side effects are stomach upset, nausea, and diarrhea.
Your doctor should clear it before you start a supplement, especially if diet or supplements aren't the usual source. Diosmin is also generally well tolerated short-term, though long-term safety is less well studied.
Common mild side effects include abdominal pain, diarrhea, nausea, and dizziness. Rare serious effects reported include heart rhythm problems and hemolytic anemia (breakdown of red blood cells).
Both Vitamin K2 and diosmin are rated likely safe in pregnancy and lactation, though you should confirm with your doctor or pharmacist before use.
Meds to double-check
Major interaction found
Check with your pharmacist before taking this product if you use warfarin (Coumadin) or other blood thinners (anticoagulants) — Vitamin K2 can reverse warfarin's protective effects, a Major interaction. Also double-check if you take diclofenac, chlorzoxazone, carbamazepine, or other medications metabolized by liver enzymes CYP2C9, CYP3A4, or CYP2E1, or drugs transported by P-glycoprotein — diosmin may slow their clearance and raise their levels.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Major medication interactions have been identified, and safety information is well characterized.
Vein Support could be worth considering if you have chronic leg swelling or heaviness and your doctor approves. However, if you take warfarin or any blood thinner, or medications metabolized by your liver, you need to check with your pharmacist first — the interactions here are real.
Talk to your healthcare provider before adding this product, especially if you're on prescription medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated May 28, 2019.
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 Vein Support, straight from the product label.
| Brand | Doctor's Best |
|---|---|
| Barcode (UPC) | 753950001855 |
| Net contents | 60 Veggie Cap(s) |
| Market status | On market |
| Date entered into DSLD | May 28, 2019 |
| DSLD ID | 203095 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten 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 Vein Support by Doctor's Best, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Natural Orange extract | 100 mg | -- |
| Vitamin K2 | 50 mcg | 40% |
| DiosVein Diosmin EP | 900 mg | -- |
Other ingredients: Modified Cellulose, Rice powder, Glycerol Monostearate, Magnesium Stearate, Silicon Dioxide, Ascorbyl Palmitate, Rosemary extract
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.
Formula
Doctor’s Best Vein Support contains DiosVein Diosmin, used for decades for vascular support in Europe. Derived from sweet orange and rich in bioflavonoids, DiosVein has been shown in clinical studies to support blood vessel health and support normal circulatory function.
Further studies have found that Diosmin in combination with the flavonoid hesperidin supports healthy venous function.
Vein Support also contains MenaQ7, a long-acting, natural form of Vitamin K2 purified from fermented chickpeas.
Adequate K2 is important for healthy blood vessel function and MenaQ7 is a long-acting form shown to support cardiovascular health.
Vein Support with DiosVein and MenaQ7 Vitamin K2 as MK-7
Warning: Contains vitamin K.
General Statements
Helps support blood vessel health Helps support normal circulatory function Helps support cardiovascular health
Helps support healthy circulation
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)
MenaQ7 is a registered trademark of NattoPharma ASA, Norway. DiosVein is a registered trademark of Berg Imports LLC.
Science-Based Nutrition
General
YDRB185-3
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
Vegan
Formulation
Vegan
Non-GMO Gluten free Soy free
Suggested/Recommended/Usage/Directions
Suggested Adult Use: Take 2 capsules daily. For optimal absorption, take with a fat-containing meal, or as recommended by a nutritionally-informed physician.
Precautions
Warning: Contains vitamin K.
Consult your physician if using blood-thinning medications such as warfarin.
Storage
Store in a cool dry place.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Vein Support by Doctor's Best 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 Vein Support by Doctor's Best
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Veggie Capsule(s) Dosage formCapsule Servings per container30 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.
Natural Orange extract
Vitamin K2
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 K2 monograph & interactionsDiosVein Diosmin EP
Interacts with884 drugs
Diosmin is a citrus-derived flavonoid most often used for vein-related problems such as chronic venous insufficiency and hemorrhoids, and it is usuall...
DiosVein Diosmin EP monograph & interactionsOther (inactive) ingredients: Modified Cellulose, Rice powder, Glycerol Monostearate, Magnesium Stearate, Silicon Dioxide, Ascorbyl Palmitate, Rosemary extract. These complete the product’s ingredient list but are not active constituents.
Vein Support by Doctor's Best Drug Interactions
HelloPharmacist Interaction Report
Vein Support by Doctor's Best contains two ingredients with documented interactions with medications.
The most serious concern is Vitamin K2, which has a Major interaction with warfarin (Coumadin) — a blood thinner (anticoagulant). Vitamin K directly opposes warfarin's effects, potentially reversing its therapeutic benefit and raising your clotting risk.
Read the full breakdown — every affected drug type, severity by severity
DiosVein Diosmin EP carries Moderate interactions across several drug types. It may slow the metabolism of drugs processed by your liver's CYP2C9 and CYP2E1 enzymes, increasing their levels — including diclofenac (an anti-inflammatory) and chlorzoxazone (a muscle relaxant).
It may also affect CYP3A4 substrates and P-glycoprotein substrates, potentially raising their blood levels. Additionally, diosmin may increase bleeding risk if you're on anticoagulants or antiplatelet drugs like aspirin or warfarin.
We could not check Natural Orange extract — we hold no interaction data for it.
Altogether, these interactions span 871 individual medications. Before starting Vein Support, run your exact medications through the interaction checker below.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Vein Support?
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 Vein Support interact with 884 drugs. Click any drug to see the details.
2 of the 3 ingredients in Vein Support interact with drugs. Each result below shows which ingredient is responsible. DiosVein Diosmin EP Vitamin K2
WarfarinWarfarin
How Warfarin interacts with Vein Support — through 2 ingredients. Tap an ingredient for the detail:
Vitamin K2Warfarin (coumadin) Major
Interaction Summary
Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Read the full Vitamin K2 + Warfarin interactionDiosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Anticoagulant/antiplatelet Drugs +1 Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Warfarin interactionWarfarin SodiumCoumadin, Panwarfin, Sofarin
How Warfarin Sodium interacts with Vein Support — through 2 ingredients. Tap an ingredient for the detail:
Vitamin K2Warfarin (coumadin) Major
Interaction Summary
Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Read the full Vitamin K2 + Warfarin Sodium interactionDiosvein Diosmin EpCytochrome P450 2c9 (cyp2c9) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2C9 substrates.
Read the full Diosvein Diosmin Ep + Warfarin Sodium interactionAdo-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosvein Diosmin Ep + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpAnticoagulant/antiplatelet Drugs, Cytochrome P450 2c9 (cyp2c9) Substrates Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosvein Diosmin Ep + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, P-glycoprotein Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acalabrutinib interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosvein Diosmin Ep + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpAnticoagulant/antiplatelet Drugs, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosvein Diosmin Ep + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Anticoagulant/antiplatelet Drugs +1 Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Vein Support — through 1 ingredient. Tap an ingredient for the detail:
Diosvein Diosmin EpCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosvein Diosmin Ep + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Vein Support 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.
DiosVein Diosmin EP
Anticoagulant/Antiplatelet Drugs
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
A case of spontaneous intraventricular hemorrhage has been reported for a 77-year-old female after 6 weeks of warfarin therapy, despite an international normalized ratio (INR) of only 1.8. The patient had also been taking aspirin and diosmin for several years. Experts speculate that chronic intake of diosmin predisposed the patient to spontaneous intraventricular hemorrhage by inducing chronic microcirculatory hypertension and inhibiting platelet aggregation. The presence of aspirin was also thought to play a role in this event.
Carbamazepine (Tegretol)
Theoretically, diosmin might reduce the effects of carbamazepine and increase the risk for convulsions.
A pharmacokinetic study in humans shows that taking diosmin (Venex) 500 mg daily for 10 days prior to oral administration of carbamazepine 200 mg increases blood levels of carbamazepine by approximately 58% and decreases carbamazepine clearance by 42%. It also decreases the formation of carbamazepine's active metabolite. It is speculated that diosmin reduces the metabolism of carbamazepine by inhibiting cytochrome P450 3A4 (CYP3A4).
Chlorzoxazone (Parafon Forte, Paraflex)
Theoretically, diosmin might increase the levels and clinical effects of chlorzoxazone.
A pharmacokinetic study in humans shows that taking diosmin (Venex 500) 500 mg daily for 9 days prior to oral administration of chlorzoxazone 250 mg increases blood levels of chlorzoxazone by 53% and decreases chlorzoxazone clearance by 40%. It is speculated that diosmin reduces the metabolism of chlorzoxazone by inhibiting cytochrome P450 2E1 (CYP2E1).
Cytochrome P450 2C9 (Cyp2C9) Substrates
Theoretically, diosmin might inhibit the metabolism of CYP2C9 substrates.
Diclofenac is metabolized by CYP2C9 enzymes. Clinical and laboratory research shows that diosmin inhibits the metabolism of diclofenac. A pharmacokinetic study in humans shows that taking diosmin (Venex 500) 500 mg daily for 9 days prior to oral administration of diclofenac 100 mg increases blood levels of diclofenac and decreases diclofenac clearance.
Cytochrome P450 2E1 (Cyp2E1) Substrates
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Chlorzoxazone is metabolized by CYP2E1 enzymes. A pharmacokinetic study in humans shows that taking diosmin (Venex 500) 500 mg daily for 9 days prior to oral administration of chlorzoxazone (Paraflex 250) 250 mg increases blood levels of chlorzoxazone by 34% and decreases chlorzoxazone clearance by 40%. It is speculated that diosmin reduces the metabolism of chlorzoxazone by inhibiting CYP2E1.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Laboratory research is conflicting with respect to the effects of diosmin on CYP3A4. Some research suggests that diosmin does not affect CYP3A4 activity. However, other research suggests that diosmin alters the metabolism of carbamazepine, a CYP3A4 substrate. Laboratory and animal research show that oral administration of diosmin for 7 days prior to oral administration of carbamazepine increases plasma concentrations of carbamazepine, decreases the clearance of carbamazepine, and decreases the formation of carbamazepine's active metabolite. Additionally, pharmacokinetic research in healthy male subjects shows that taking diosmin (Venex) 500 mg daily for 10 days prior to oral administration of carbamazepine 200 mg increases blood levels of carbamazepine by approximately 58% and decreases carbamazepine clearance by 42%. It is speculated that diosmin reduces the metabolism of carbamazepine by inhibiting CYP3A4. Diosmetin, a metabolite of diosmin, may also inhibit CYP3A4.
Diclofenac (Voltaren, Others)
Theoretically, diosmin might increase the levels and clinical effects of diclofenac.
Clinical and laboratory research shows that diosmin inhibits the metabolism of diclofenac. A pharmacokinetic study in humans shows that taking diosmin (Venex 500) 500 mg daily for 9 days prior to oral administration of diclofenac 100 mg increases blood levels of diclofenac and decreases diclofenac clearance. It is speculated that diosmin reduces the metabolism of diclofenac by inhibiting cytochrome P450 2C9 (CYP2C9).
Fexofenadine (Allegra)
Theoretically, diosmin might increase the levels and clinical effects of fexofenadine.
A pharmacokinetic study in humans shows that taking diosmin (Venex) 500 mg daily for 10 days prior to oral administration of fexofenadine 120 mg increases blood levels of fexofenadine by approximately 49% and decreases the apparent oral clearance of fexofenadine by 41%. The time taken to reach maximum plasma concentration, the half-life, and the apparent renal clearance of fexofenadine are not affected. For this reason, it is speculated that diosmin alters the pharmacokinetics of fexofenadine via inhibition of P-glycoprotein in the intestine, but not in the kidney or liver.
P-Glycoprotein Substrates
Theoretically, diosmin might increase levels of drugs that are substrates of P-glycoprotein (P-gp).
Preliminary laboratory research suggests that diosmin inhibits P-gp. Additionally, pharmacokinetic research in healthy male subjects shows that taking diosmin (Venex) 500 mg daily for 10 days prior to oral administration of fexofenadine 120 mg increases blood levels of fexofenadine, a P-gp substrate, by approximately 49% and decreases the apparent oral clearance of fexofenadine by 41%. The time taken to reach maximum plasma concentration, the half-life, and the apparent renal clearance of fexofenadine are not affected. For this reason, it is speculated that diosmin inhibits P-gp in the intestine, but not in the kidney or liver.
Vitamin K2
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 Vein Support, from the product label.
Doctor's Best
See all Doctor's Best products- Name
- Doctor's Best, Inc.
- State
- California
- ZipCode
- 92612
- Phone Number
- (800) 777-2474
- Web Address
- www.drbvitamins.com
Vein Support by Doctor's Best: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.
The Full Monographs Behind Vein Support’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Vitamin 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 → Herb & supplement monographDiosmin
Interacts with 884 drugsDiosmin is a citrus-derived flavonoid most often used for vein-related problems such as chronic venous insufficiency and hemorrhoids, and it is usually combined with a related flavonoid call...
Read the full Diosmin monograph →Sources & How We Checked
Vein Support'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 31 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Vitamin K 11 references
- 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
Diosmin 20 references
- Misra MC, Parshad R. Randomized clinical trial of micronized flavonoids in the early control of bleeding from acute internal haemorrhoids. Br J Surgery 2000;87:868-72. PubMed
- Thanapongsathorn W, Vajrabukka T. Clinical trial of oral diosmin (Daflon) in the treatment of hemorrhoids. Dis Colon Rectum 1992;35:1085-8. PubMed
- Cospite M. Double-blind, placebo-controlled evaluation of clinical activity and safety of Daflon 500 mg in the treatment of acute hemorrhoids. Angiology 1994;45:566-73.
- Guilhou JJ, Dereure O, Marzin L, et al. Efficacy of Daflon 500 mg in venous leg ulcer healing: a double-blind, randomized, controlled versus placebo trial in 107 patients. Angiology 1997;48:77-85.. PubMed
- Cospite, M. and Dominici, A. Double blind study of the pharmacodynamic and clinical activities of 5682 SE in venous insufficiency. Advantages of the new micronized form. Int Angiol. 1989;8(4 Suppl):61-65.
- Buckshee, K., Takkar, D., and Aggarwal, N. Micronized flavonoid therapy in internal hemorrhoids of pregnancy. Int J Gynaecol Obstet 1997;57(2):145-151. PubMed
- Kumar RM, Van Gompel JJ, Bower R, Rabinstein AA. Spontaneous intraventricular hemorrhage associated with prolonged diosmin therapy. Neurocrit Care. 2011 Jun;14(3):438-40. PubMed
- Milano G, Leone S, Fucile C, Zuccoli ML, Stimamiglio A, Martelli A, Mattioli F. Uncommon serum creatine phosphokinase and lactic dehydrogenase increase during diosmin therapy: two case reports. J Med Case Rep. 2014 Jun 16;8:194. PubMed
- Rajnarayana K, Venkatesham A, Krishna DR. Bioavailability of diclofenac sodium after pretreatment with diosmin in healthy volunteers. Drug Metabol Drug Interact. 2007;22(2-3):165-74. PubMed
- Rajnarayana K, Venkatesham A, Nagulu M, Srinivas M, Krishna DR. Influence of diosmin pretreatment on the pharmacokinetics of chlorzoxazone in healthy male volunteers. Drug Metabol Drug Interact. 2008;23(3-4):311-21. PubMed
- Yoo HH, Lee M, Chung HJ, Lee SK, Kim DH. Effects of diosmin, a flavonoid glycoside in citrus fruits, on P-glycoprotein-mediated drug efflux in human intestinal Caco-2 cells. J Agric Food Chem. 2007 Sep 5;55(18):7620-5. PubMed
- Bedada SK, Neerati P. Modulation of CYP3A enzyme activity by diosmin and its consequence on carbamazepine pharmacokinetics in rats. Naunyn Schmiedebergs Arch Pharmacol. 2018;391(2):115-21. PubMed
- Burkina V, Zlabek V, Halsne R, Ropstad E, Zamaratskaia G. In vitro effects of the citrus flavonoids diosmin, naringenin and naringin on the hepatic drug-metabolizing CYP3A enzyme in human, pig, mouse and fish. Biochem Pharmacol. 2016;110-111:109-16 PubMed
- Bedada SK, Boga PK. Influence of diosmin on the metabolism and disposition of carbamazepine in healthy subjects. Xenobiotica. 2017;47(10):879-84. PubMed
- Bedada SK, Boga PK, Kotakonda HK. The effect of diosmin on the pharmacokinetics of fexofenadine in healthy human volunteers. Xenobiotica. 2017;47(3):230-35. PubMed
- Poór M, Boda G, Mohos V, et al. Pharmacokinetic interaction of diosmetin and silibinin with other drugs: Inhibition of CYP2C9-mediated biotransformation and displacement from serum albumin. Biomed Pharmacother. 2018;102:912-921. PubMed
- Gavrilov SG, Karalkin AV, Moskalenko YP, Grishenkova AS. Efficacy of two micronized purified flavonoid fraction dosing regimens in the pelvic venous pain relief. Int Angiol. 2021;40(3):180-186. PubMed
- Steinbruch M, Nunes C, Gama R, et al. Is nonmicronized diosmin 600?mg as effective as micronized diosmin 900?mg plus hesperidin 100?mg on chronic venous disease symptoms? Results of a noninferiority study. Int J Vasc Med. 2020;2020:4237204. PubMed
- Schastlivtsev I, Lobastov K, Barinov V, Kanzafarova I. Diosmin 600 in adjunction to rivaroxaban reduces the risk of post-thrombotic syndrome after femoropopliteal deep vein thrombosis: results of the RIDILOTT DVT study. Int Angiol. 2020;39(5):361-371. PubMed
- Mansilha A, Caldevilla H, Puskás A, Lucien A, Roby L, Kirienko A. MPFF 1000 mg chewable once daily vs. MPFF 500 mg twice daily in chronic venous disease: the double-blind, randomized, non-inferiority CHEWY trial. Int Angiol 2022;41(6):464-475. 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