Diosmin Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Diosmin 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
Diosmin is a dietary supplement by Earthborn Elements with 1 active ingredient. Its ingredients are commonly taken for chronic venous insufficiency, hemorrhoids, leg swelling and heaviness.Based on those ingredients, 884 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Diosmin. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Diosmin by Earthborn Elements
Ask about any prescription or over-the-counter medication and we check it for interactions with Diosmin by Earthborn Elements — 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 Diosmin by Earthborn Elements
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: diosmin, a plant compound (a flavonoid) that's been studied for conditions affecting veins and blood flow. The capsule itself is made from gelatin.
Does it work?
Moderate evidence
Diosmin is possibly effective for chronic venous insufficiency (poor circulation in leg veins), venous leg ulcers, and hemorrhoids, according to the evidence we have on file. The data for back pain and diabetic nerve pain isn't established — we don't hold enough reliable evidence to rate it for those uses.
How safe is it?
Well-documented data
Diosmin is generally well tolerated for short-term use. The most common side effects are abdominal pain, diarrhea, dizziness, nausea, gastritis, and skin irritation.
Rare but serious effects include irregular heartbeats (cardiac arrhythmias) and a type of anemia (hemolytic anemia) in which red blood cells break down. Long-term safety hasn't been as thoroughly studied, and the safety data overall advises using it only under medical supervision.
Meds to double-check
Moderate interaction found
Blood thinners (like warfarin) and aspirin-type drugs carry the highest concern: diosmin may increase bleeding risk. Also double-check pain relievers processed through the liver (like diclofenac), muscle relaxants (like chlorzoxazone), seizure medications (like carbamazepine), and any other drugs your liver metabolizes, because diosmin can raise their blood levels.
Use the medication checker on this page with your full list.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Diosmin may be worth considering if your doctor recommends it for poor circulation, leg ulcers, or hemorrhoids. But because it interacts with a very large number of medications — especially blood thinners, pain relievers, and seizure drugs — you need to check your prescriptions first.
Talk with your pharmacist or doctor before starting it.
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 Oct 24, 2024.
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 Diosmin, straight from the product label.
| Brand | Earthborn Elements |
|---|---|
| Net contents | 200 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Oct 24, 2024 |
| DSLD ID | 319545 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| 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 Diosmin by Earthborn Elements, sourced from the NIH Dietary Supplement Label Database.
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
Suggested use: As a dietary supplement, take 2 capsules 1 to 2 times daily, preferably with meals. Take with at least 8 oz of liquid.
Precautions
If pregnant, nursing, or taking medications, consult your physician.
General Statements
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FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Diosmin by Earthborn Elements 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 Diosmin by Earthborn Elements
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.
Diosmin
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...
Diosmin monograph & interactionsOther (inactive) ingredients: Gelatin. These complete the product’s ingredient list but are not active constituents.
Diosmin by Earthborn Elements Drug Interactions
HelloPharmacist Interaction Report
Diosmin by Earthborn Elements interacts with a substantial number of medications, and the interactions are all rated Moderate in severity.
The most significant concern involves blood thinners (anticoagulants) and aspirin-like drugs (antiplatelet agents) — diosmin may increase bleeding risk, and a case report documents a serious bleed in a patient taking warfarin, aspirin, and diosmin together.
Read the full breakdown — every affected drug type, severity by severity
Diosmin also slows how your liver breaks down several common drug types. It inhibits metabolism of pain relievers and muscle relaxants processed through specific liver enzymes (CYP2C9, CYP2E1, and CYP3A4), which means those drugs can build up to higher levels in your blood.
Additionally, diosmin may increase levels of drugs that depend on a cellular transporter called P-glycoprotein. The result is stronger drug effects — and potentially more side effects — than your usual dose would produce.
Additionally, diosmin appears to speed up the breakdown of carbamazepine (an anti-seizure medication), which could make it less effective and raise seizure risk. Altogether, these interactions span 871 individual medications.
Before you start diosmin, run your exact medications through the checker on this page to see if any are affected.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Diosmin?
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 Diosmin interact with 884 drugs. Click any drug to see the details.
1 of the 1 ingredient in Diosmin interact with drugs. Each result below shows which ingredient is responsible. Diosmin
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Ado-trastuzumab Emtansine interactionAbciximabReoPro
How Abciximab interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosmin + Abciximab interactionAbemaciclibVerzenio
How Abemaciclib interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Abemaciclib interactionAbiraterone
How Abiraterone interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Abiraterone Acetate interactionAbrocitinibCibinqo
How Abrocitinib interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminAnticoagulant/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 Diosmin + Abrocitinib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, P-glycoprotein Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acalabrutinib interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosmin + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminAnticoagulant/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 Diosmin + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminAnticoagulant/antiplatelet Drugs, Cytochrome P450 2e1 (cyp2e1) Substrates +1 Moderate
Interaction Summary
Theoretically, diosmin may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Read the full Diosmin + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + 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 Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP3A4 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Diosmin — through 1 ingredient. Tap an ingredient for the detail:
DiosminCytochrome P450 2e1 (cyp2e1) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, diosmin might inhibit the metabolism of CYP2E1 substrates.
Read the full Diosmin + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Diosmin 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.
Diosmin
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.
Brand information
Manufacturer and brand details for Diosmin, from the product label.
Earthborn Elements
See all Earthborn Elements products- Name
- Earthborn Elements
- Street Address
- 9450 SW Gemini Dr #49936
- City
- Beaverton
- State
- Oregon
- ZipCode
- 97008
- Web Address
- Earthbornelements.com
Diosmin by Earthborn Elements: Common Questions
Does Diosmin by Earthborn Elements interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is diosmin safe to take if I'm pregnant or breastfeeding?
What are the most common side effects?
Can diosmin actually help with varicose veins or leg swelling?
Why does this product interact with so many medications?
Is there anything else in this capsule besides diosmin?
How long has diosmin been studied for safety?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Diosmin 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 Diosmin’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Diosmin'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.
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The 20 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.
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
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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.
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