Oregano Oil Ingredients & Drug Interactions
by Nature's Way
What is this page for?
First and foremost: checking Oregano Oil 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
Oregano Oil is a dietary supplement by Nature's Way with 2 active ingredients. Its ingredients are commonly taken for source of omega-3 (ala) fatty acids, heart and cholesterol health, dry skin and inflammation.Based on those ingredients, 379 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Flaxseed Oil, Oregano Flower, Leaf Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Oregano Oil by Nature's Way
Ask about any prescription or over-the-counter medication and we check it for interactions with Oregano Oil by Nature's Way — 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 Oregano Oil by Nature's Way
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
Nature's Way Oregano Oil is a 2-ingredient capsule containing flaxseed oil and carvacrol — the second one is an active component of oregano. The product also contains soy lecithin and hypromellose as inactive ingredients (capsule material and a stabilizer).
Does it work?
Not established
The evidence for flaxseed oil — one of the two active ingredients — is not strong. It's rated possibly ineffective for lowering cholesterol (hyperlipidemia), reducing weight (obesity), improving rheumatoid arthritis, and treating bipolar disorder.
We have no effectiveness data on file for carvacrol or the oregano flower and leaf oil.
How safe is it?
Well-documented data
Flaxseed oil is generally well tolerated when taken by mouth. A small number of people report mild changes in bowel habits, dry mouth, or indigestion at typical doses around 5 grams daily.
High doses (30 grams per day or higher) have been linked to loose stools and diarrhea. Rare severe allergic reactions are possible.
We don't have enough reliable safety data to say whether this product is safe in pregnancy, and limited information exists for breastfeeding — talk with your doctor or pharmacist before use if you're pregnant or nursing.
Meds to double-check
Moderate interaction found
Before taking Nature's Way Oregano Oil, check your exact medications against the tool on this page if you take blood thinners or antiplatelet drugs (like warfarin, aspirin, or clopidogrel), blood pressure medications, or ezetimibe (Zetia) for cholesterol. These are Moderate-severity interactions with flaxseed oil, the main active ingredient.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
This product may interest people exploring oregano's traditional uses, but the flaxseed oil it contains has weak evidence for its marketed claims. If you take blood thinners, blood pressure medications, or ezetimibe, you'll need to check with your pharmacist first — the interactions are real.
Anyone pregnant, nursing, or on other medications should talk with their doctor before starting.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 25, 2025.
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 Oregano Oil, straight from the product label.
| Brand | Nature's Way |
|---|---|
| Barcode (UPC) | 033674151815 |
| Net contents | 60 Vegan Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jun 25, 2025 |
| DSLD ID | 328006 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy 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 Oregano Oil by Nature's Way, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Flaxseed Oil | 25 mg | -- |
| Carvacrol | 37.5 mg | -- |
| Oregano Flower, Leaf Oil | 50 mg | -- |
Other ingredients: Soy Lecithin, Hypromellose
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.
Formulation
Immune support Supports antioxidant pathways
Botanicals are sourced where they grow best Made with the quality you trust
Bottled and tested in the USA
Vegan Gelatin Free
Vegan Gelatin Free
Immune and antioxidant support
Plant powered
Gluten free. No salt, wheat, corn, dairy, gelatin, or artificial colors, flavors, or preservatives.
Precautions
Keep out of reach of children.
Do not use if safety seal under child-resistant cap is broken or missing.
If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.
Contains soy.
Storage
Keep tightly closed. Store at room temperature. Avoid excessive heat and direct sunlight.
Brand IP Statement(s)
Copyright 2024
General Statements
Questions? 1-800-962-8873 / naturesway.com Bottle made from 50% post-consumer recycled plastic
Explore more products at naturesway.com
Seals/Symbols
Vegan Gelatin Free
FDA Disclaimer Statement
These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Formula
75% Carvacrol (37.5 mg) per serving
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Recommendation: Adults take 1 capsule daily with food.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Oregano Oil by Nature's Way 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 Oregano Oil by Nature's Way
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Flaxseed Oil
Interacts with293 drugs
Flaxseed oil is a plant-based source of the omega-3 fatty acid ALA, which the body can partly convert to the omega-3s found in fish oil. It may help s...
Flaxseed Oil monograph & interactionsOregano Flower, Leaf Oil
Interacts with208 drugs
Oregano is a common Mediterranean cooking herb that is also sold as a concentrated oil or supplement, often standardized for a compound called carvacr...
Oregano Flower, Leaf Oil monograph & interactionsOther (inactive) ingredients: Soy Lecithin, Hypromellose. These complete the product’s ingredient list but are not active constituents.
Oregano Oil by Nature's Way Drug Interactions
HelloPharmacist Interaction Report
Nature's Way Oregano Oil contains flaxseed oil, which does interact with several medication types.
The most serious concern is with blood thinners (anticoagulant/antiplatelet drugs) — flaxseed oil may increase bleeding risk when combined with these medications, as small studies show it can thin the blood slightly. This is a Moderate severity interaction.
Read the full breakdown — every affected drug type, severity by severity
Flaxseed oil also has Moderate interactions with blood pressure medications (antihypertensive drugs) — combining them might lower your blood pressure too much — and with ezetimibe (Zetia), a cholesterol drug. Ezetimibe blocks your body's absorption of the active compound in flaxseed oil, so the supplement may not work as intended if you take them together.
We could not check carvacrol or the oregano flower and leaf oil components for drug interactions — we hold no data for them. Altogether, these interactions span 291 individual medications.
Before you start this product, run it through the medication checker below with your exact prescriptions.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Oregano Oil?
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 Oregano Oil interact with 379 drugs. Click any drug to see the details.
2 of the 2 ingredients in Oregano Oil interact with drugs. Each result below shows which ingredient is responsible. Flaxseed Oil Oregano Flower, Leaf Oil
AbciximabReoPro
How Abciximab interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Flaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Abciximab interactionOregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Abrocitinib interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Acebutolol interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Acenocoumarol interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Flaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Acetaminophen, Aspirin interactionOregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Acetaminophen, Aspirin, Caffeine interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Acetaminophen, Ibuprofen interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Acetaminophen, Ibuprofen interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Acetylsalicylic Acid interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Acetylsalicylic Acid interactionAlbiglutideTanzeum
How Albiglutide interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Albiglutide interactionAliskirenTekturna
How Aliskiren interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Aliskiren interactionAlogliptinNesina
How Alogliptin interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
Read the full Oregano Flower, Leaf Oil + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Alteplase, Tpa interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Alteplase, Tpa interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Flaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionOregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Oregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionFlaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAmbrisentanLetairis, Volibris
How Ambrisentan interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Ambrisentan interactionAmilorideAmilamont, Midamor
How Amiloride interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amiloride interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amiloride, Hydrochlorothiazide interactionAmlodipineNorliqva
How Amlodipine interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine interactionAmlodipine BenzoateKaterzia
How Amlodipine Benzoate interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine Benzoate interactionAmlodipine BesilateIstin
How Amlodipine Besilate interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine Besilate interactionAmlodipine BesylateNorvasc
How Amlodipine Besylate interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine Besylate interactionAmlodipine Besylate, BenazeprilLotrel
How Amlodipine Besylate, Benazepril interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine Besylate, Benazepril interactionAmlodipine, CelecoxibConsensi
How Amlodipine, Celecoxib interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Amlodipine, Celecoxib interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Oregano Oil — through 1 ingredient. Tap an ingredient for the detail:
Flaxseed OilAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Read the full Flaxseed Oil + Ammonium Chloride interactionAnacaulase-bcdbNexoBrid
How Anacaulase-bcdb interacts with Oregano Oil — through 2 ingredients. Tap an ingredient for the detail:
Flaxseed OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Read the full Flaxseed Oil + Anacaulase-bcdb interactionOregano Flower, Leaf OilAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Oregano Flower, Leaf Oil + Anacaulase-bcdb interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Oregano Oil 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.
Flaxseed Oil
Anticoagulant/Antiplatelet Drugs
Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Small clinical studies show that consuming flaxseed oil might decrease platelet aggregation and increase bleeding time.
Antihypertensive Drugs
Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Some clinical evidence suggests that long-term consumption of flaxseed oil can modestly lower systolic and diastolic blood pressure, while other clinical research shows no effect.
Ezetimibe (Zetia)
Concomitant use of flaxseed oil and ezetimibe reduces the absorption of alpha-linolenic acid from flaxseed oil.
In one clinical study, concomitant consumption of ezetimibe 10 mg daily with flaxseed oil 2 grams providing 1 gram of alpha-linolenic acid daily blocked the absorption of alpha-linolenic acid, resulting in an overall reduction in alpha-linolenic plasma levels from baseline.
Oregano Flower, Leaf Oil
Anticoagulant/Antiplatelet Drugs
Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aristolochic acid isolated from oregano leaves has antithrombin activity. It has also been reported that oregano oil inhibits arachidonic acid-induced, and ADP-induced, platelet aggregation.
Antidiabetes Drugs
Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
In vitro and animal research shows that oregano extracts might lower blood glucose levels.
Brand information
Manufacturer and brand details for Oregano Oil, from the product label.
Nature's Way
See all Nature's Way products- Name
- Nature's Way Brands, LLC
- City
- Green Bay
- State
- WI
- ZipCode
- 54311
- Phone Number
- 1-800-962-8873
- Web Address
- naturesway.com
Oregano Oil by Nature's Way: Common Questions
Does Oregano Oil by Nature's Way interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What does carvacrol do in this product?
Will this help my cholesterol or weight?
What side effects should I watch for?
Is this safe if I'm pregnant or breastfeeding?
Can I take this with my ezetimibe (Zetia)?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Oregano Oil 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 Oregano Oil’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Flaxseed Oil
Interacts with 293 drugsFlaxseed oil is a plant-based source of the omega-3 fatty acid ALA, which the body can partly convert to the omega-3s found in fish oil. It may help support heart health and provide healthy...
Read the full Flaxseed Oil monograph → Herb & supplement monographOregano
Interacts with 208 drugsOregano is a common Mediterranean cooking herb that is also sold as a concentrated oil or supplement, often standardized for a compound called carvacrol. While lab studies suggest it may hav...
Read the full Oregano monograph →Sources & How We Checked
Oregano Oil'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 33 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.
Flaxseed Oil 21 references
- Kolonel LN, Nomura AM, Cooney RV. Dietary fat and prostate cancer: current status. J Natl Cancer Inst 1999;91:414-28. PubMed
- Ramon JM, Bou R, Romea S, et al. Dietary fat intake and prostate cancer risk: a case-control study in Spain. Cancer Causes Control 2000;11:679-85. PubMed
- Nordstrom DC, Honkanen VE, Nasu Y, et al. Alpha-linolenic acid in the treatment of rheumatoid arthritis. A double-blind, placebo-controlled and randomized study: flaxseed vs. safflower seed. Rheumatol Int 1995;14:231-4. PubMed
- De Stefani E, Deneo-Pellegrini H, Boffetta P, et al. Alpha-linolenic acid and risk of prostate cancer: a case-control study in Uruguay. Cancer Epidemiol Biomarkers Prev 2000;9:335-8.
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