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Dietary supplement

Oregano Oil Drops Ingredients & Drug Interactions

by Orzax

Oregano Oil Drops label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Oregano Oil Drops 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

The interaction bottom line Most serious interaction: Moderate

Oregano Oil Drops is a dietary supplement by Orzax with 1 active ingredient. Its ingredients are commonly taken for digestive upset, respiratory and cold symptoms, antimicrobial support.Based on those ingredients, 208 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Oregano Leaf Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Oregano Oil Drops by Orzax

Ask about any prescription or over-the-counter medication and we check it for interactions with Oregano Oil Drops by Orzax — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Oregano Oil Drops by Orzax

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Orzax Oregano Oil Drops is a single-ingredient product: oregano leaf oil. It's a concentrated liquid extract meant to deliver the plant's active compounds in a small dose.

The inactive ingredients are olive oil (the carrier) and mixed tocopherols (a form of vitamin E used as a preservative).

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Oregano product and its label doesn't state a use — see Oregano's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold on oregano oil for acne, bronchitis, asthma, headache, and upper respiratory tract infection is insufficient to rate it one way or the other. In other words, we don't have reliable data showing it works or doesn't work for these uses.

If you're considering it for a specific health concern, talk with your pharmacist or doctor about whether the evidence supports that use.

The evidence, ingredient by ingredient Oregano

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Oregano is well tolerated in food amounts. Concentrated oregano oil supplements are much stronger and haven't been studied as extensively, so use with caution.

The most common side effect when taken by mouth is stomach upset. Rare but serious reactions—including systemic allergic reactions and anaphylaxis—have been reported in sensitive people.

Topically, oregano oil can cause skin irritation or allergic contact dermatitis, especially at concentrations above 1%. During pregnancy, avoid medicinal or supplement doses of oregano oil; food amounts are likely fine.

While breastfeeding, stick to normal food amounts—the safety of oregano oil supplements hasn't been established. If you're pregnant, planning to become pregnant, or breastfeeding, talk with your pharmacist or doctor before taking this product.

Side effects, ingredient by ingredient Oregano

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Oregano.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 208 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Double-check this product with your pharmacist if you take any blood thinners or antiplatelet drugs (such as warfarin, aspirin, or clopidogrel)—oregano oil may increase bleeding risk. Also check if you're on diabetes medications, since oregano oil might lower your blood sugar further.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Oregano oil drops might appeal to someone looking for a traditional remedy, but the evidence supporting its use for common conditions is weak. If you take blood thinners, antiplatelet drugs, or diabetes medications, you need to check with your pharmacist or doctor first—the risk of bleeding or low blood sugar is real.

Talk to us before you start.

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 Aug 22, 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

At a glance

General information

Key facts about Oregano Oil Drops, straight from the product label.

Brand Orzax
Barcode (UPC) 860008749628
Net contents 1 Fluid Ounce(s); 30 Milliliter(s)
Market status On market
Date entered into DSLD Aug 22, 2024
DSLD ID 310476
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Dairy Free
From the label
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 Drops by Orzax, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
3 Drop(s)
Maximum serving Sizes:
3 Drop(s)
Servings per container
200
UPC/BARCODE
860008749628
IngredientAmount% DV
Oregano Leaf Oil33 mg--

Other ingredients: Olive Oil, Mixed Tocopherols

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 3 drops daily, or as recommended by a physician.

Precautions

Caution: Keep this product out of the reach of children.

Do not use damaged or open containers. Do not exceed recommended dose.

If pregnant, nursing, or taking medication, consult your physician before use.

Do not use if you are allergic against to any of the ingredients. Seek medical advice if an undesired effect is observed.

Storage

Store at room temperature in a dry place.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Formulation

No artificial flavors No artificial colors No chemical preservatives Dairy free

Supports healthy immune function Helps maintain healthy intestinal flora balance

Made in Turkey

No artificial sweeteners

Seals/Symbols

Good manufacturing practice GMP

Formula

88% Carvacrol

Oregano oil is a powerful plant extract that helps maintain a healthy microbial balance, as well as promotes antioxidant and immune systems benefits. Origanum onites, one of the main components of the plant, carvacol and thymol. It has been shown that Oregano occurs thanks to those components. Orzax Oregano Oil contain 88% carvacol an 0,% thymol.

FDA Statement of Identity

Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Oregano Oil Drops by Orzax label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Oregano Oil Drops label

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)
What’s inside

The Ingredients in Oregano Oil Drops by Orzax

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size3 Drop(s) Dosage formLiquid Servings per container200 Amounts shown are per serving.

Oregano Leaf Oil

Interacts with
208 drugs
33 mg per serving Form: Origanum onites Leaf Oil

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 Leaf Oil monograph & interactions

Other (inactive) ingredients: Olive Oil, Mixed Tocopherols. These complete the product’s ingredient list but are not active constituents.

Interaction report

Oregano Oil Drops by Orzax Drug Interactions

Want to check YOUR meds against Oregano Oil Drops?

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 checker
208Drugs
208 Moderate

Ingredients driving the most interactions

Oregano Leaf Oil 208

Individual Drug Interactions

The ingredients in Oregano Oil Drops interact with 208 drugs. Click any drug to see the details.

1 of the 1 ingredient in Oregano Oil Drops interact with drugs. Each result below shows which ingredient is responsible. Oregano Leaf Oil

Each ingredient & the kinds of drugs it affects

For each ingredient in Oregano Oil Drops 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.

Oregano Leaf Oil2 drug types · 208 drugs

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.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence D
Oregano Leaf Oil full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Oregano Oil Drops, from the product label.

Orzax

See all Orzax products
Name
Orzax Inc.
Street Address
901 Mittel Drive
City
Wood Dale
State
IL
ZipCode
60191
Web Address
www.orzax.com
Pharmacist Counseling Corner

Oregano Oil Drops by Orzax: Common Questions

Does Oregano Oil Drops by Orzax interact with any medications?
Yes. Based on its ingredients, Oregano Oil Drops has a known interaction with 208 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Oregano Oil Drops contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What's actually in oregano oil drops?
Just oregano leaf oil (the active ingredient) suspended in olive oil, with a bit of vitamin E as a preservative. It's a concentrated extract, so one dose packs much more oregano than you'd get from seasoning your food.
Can I use oregano oil drops while I'm pregnant?
Not in supplement doses. The safety data advises against medicinal amounts during pregnancy, though normal food amounts of oregano are fine. Talk with your pharmacist or doctor for personalized advice.
Is it safe to breastfeed while taking oregano oil drops?
There isn't enough data to know either way. Stick to normal food amounts if you're breastfeeding; safety of the supplement itself hasn't been established. Ask your pharmacist or doctor.
What side effects should I watch for?
Stomach upset is the most common one when taken by mouth. Skin irritation or allergic reactions can happen if you apply it topically. Serious allergic reactions, including anaphylaxis, are rare but have been reported in sensitive people.
Does oregano oil actually work for colds or bronchitis?
The evidence we have isn't strong enough to say. For upper respiratory infections, asthma, bronchitis, headache, and acne, we don't have reliable data showing oregano oil is effective. That doesn't mean it's useless—just that the science isn't settled yet.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Oregano Oil Drops is safe with your meds?

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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.

Oregano Oil Drops label
Go deeper

The Full Monographs Behind Oregano Oil Drops’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Oregano

Interacts with 208 drugs

Oregano 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

Sources & How We Checked

Oregano Oil Drops'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.

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 12 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.

Oregano 12 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Benito M, Jorro G, Morales C, et al. Labiatae allergy: systemic reactions due to ingestion of oregano and thyme. Ann Allergy Asthma Immunol 1996;76:416-8. PubMed
  3. Chevallier A. Encyclopedia of Herbal Medicine. 2nd ed. New York, NY: DK Publ, Inc., 2000.
  4. Ciganda C, and Laborde A. Herbal infusions used for induced abortion. J Toxicol.Clin Toxicol. 2003;41:235-239. PubMed
  5. Futrell, J. M. and Rietschel, R. L. Spice allergy evaluated by results of patch tests. Cutis 1993;52(5):288-290.
  6. Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
  7. Goun, E., Cunningham, G., Solodnikov, S., Krasnykch, O., and Miles, H. Antithrombin activity of some constituents from Origanum vulgare. Fitoterapia 2002;73(7-8):692-694. PubMed
  8. Lemhadri, A., Zeggwagh, N. A., Maghrani, M., Jouad, H., and Eddouks, M. Anti-hyperglycaemic activity of the aqueous extract of Origanum vulgare growing wild in Tafilalet region. J Ethnopharmacol. 2004;92(2-3):251-256. PubMed
  9. McCue, P., Vattem, D., and Shetty, K. Inhibitory effect of clonal oregano extracts against porcine pancreatic amylase in vitro. Asia Pac.J Clin.Nutr. 2004;13(4):401-408.
  10. Ragi, J., Pappert, A., Rao, B., Havkin-Frenkel, D., and Milgraum, S. Oregano extract ointment for wound healing: a randomized, double-blind, petrolatum-controlled study evaluating efficacy. J.Drugs Dermatol. 2011;10(10):1168-1172.
  11. Singletary K. Oregano: overview of the literature on health benefits. Nutrition Today 2010;45(3):129-38.
  12. Silva MLAE, Lucarini R, Dos Santos FF, et al. Hypoglycemic effect of rosmarinic acid-rich infusion (RosCE) from Origanum vulgare in alloxan-induced diabetic rats. Nat Prod Res 2022;36(17):4525-4531.

See these in context on the Oregano monograph →

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

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