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Dietary supplement

Oregano Ingredients & Drug Interactions

by Revive

Oregano label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Oregano 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 is a dietary supplement by Revive 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. 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 by Revive

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

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HelloPharmacist Scorecard of Oregano by Revive

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.

This product contains one active ingredient: oregano (Origanum vulgare). Oregano is a common culinary herb used here in concentrated liquid form as a supplement.

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 for oregano's effectiveness isn't established in our data. Effectiveness ratings for acne, bronchitis, asthma, headache, and upper respiratory tract infection all show insufficient reliable evidence, so we can't say whether this supplement works for those purposes based on the studies we've reviewed.

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 when you use it in food amounts. However, this is a concentrated liquid supplement, which is stronger and less studied than the herb you'd sprinkle on pizza.

The most common side effect is gastrointestinal upset. Rarely, people have had serious allergic reactions, including anaphylaxis—one documented case involved a man who developed swelling, difficulty breathing, and a dangerous drop in blood pressure after eating oregano-seasoned food; he had positive skin tests to the plant family oregano belongs to.

Topical oregano oil can cause skin irritation in sensitive people. Avoid medicinal or supplement amounts during pregnancy; food amounts are likely fine.

For breastfeeding, stick to normal food amounts—safety of supplements isn't established. If you have a history of allergies to plants in the mint family (Lamiaceae), talk with your pharmacist before trying this.

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.

Before taking this oregano supplement, double-check if you're on any blood thinners or antiplatelet drugs (Moderate risk of bleeding) or diabetes medications (Moderate risk of low blood sugar). Use the medication checker on this page to verify your exact prescriptions.

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.

This liquid oregano supplement may help some people, but the evidence isn't proven yet. If you take blood thinners, antiplatelet drugs, or diabetes medications, you'll need to check with us first.

And if you're allergic to herbs in the mint family, skip 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 Jul 24, 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

At a glance

General information

Key facts about Oregano, straight from the product label.

Brand Revive
Net contents 10 mL
Market status On market
Date entered into DSLD Jul 24, 2025
DSLD ID 331415
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 by Revive, 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:
1 Drop(s)
Maximum serving Sizes:
1 Drop(s)
Servings per container
170
IngredientAmount% DV
Oregano60 mg--

Other ingredients: Origanum vulgare

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.
FDA Statement of Identity

Essential Oil Supplement

General Statements

Made with love #GoRevive

Formulation

Bottled in the USA

For aromatic, topical, or dietary use.

Formula

100% Pure Essential Oil 100% Pure Therapeutic Grade Essential Oil

Precautions

Caution: Possible skin sensitivity. Avoid contact with eyes, inner ears and sensitive areas.

Keep out of reach of children.

If pregnant or under a doctor's care, consult your physician.

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

See for yourself

Oregano by Revive label

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

Oregano 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 by Revive

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

Serving size1 Drop(s) Dosage formLiquid Servings per container170 Amounts shown are per serving.

Oregano

Interacts with
208 drugs
60 mg per serving

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 monograph & interactions

Other (inactive) ingredients: Origanum vulgare. These complete the product’s ingredient list but are not active constituents.

Interaction report

Oregano by Revive Drug Interactions

Want to check YOUR meds against Oregano?

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 208

Individual Drug Interactions

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

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Oregano 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.

Oregano2 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 full monograph & interactions
The maker

Brand information

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

Revive

See all Revive products
Name
Revive
Street Address
201 California St
City
San Francisco
State
California
Web Address
www.revive-eo.com
Pharmacist Counseling Corner

Oregano by Revive: Common Questions

Does Oregano by Revive interact with any medications?
Yes. Based on its ingredients, Oregano 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 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.
Can I use this oregano supplement while I'm pregnant?
Avoid medicinal or supplement amounts during pregnancy. Food amounts of oregano are likely fine, but concentrated supplements like this one aren't recommended. Talk with your pharmacist or doctor about what's safe for your specific situation.
What are the side effects of oregano supplements?
Most common is gastrointestinal upset. Rarely, people have had serious allergic reactions including anaphylaxis, especially if they're sensitive to plants in the mint family. If you have a history of plant allergies, talk with us first.
Is oregano effective for colds or cough?
The evidence isn't established yet. We don't have enough reliable data to say whether oregano works for upper respiratory infections, bronchitis, or asthma.
Why is this liquid oregano different from the dried oregano I cook with?
This is a concentrated supplement form, which is much stronger than the food seasoning you'd sprinkle on dinner. Because it's more potent and less well studied than culinary oregano, it carries higher risks and needs more caution.
Is it safe to breastfeed while taking this supplement?
Stick to normal food amounts of oregano. Safety of oregano supplements while breastfeeding isn't established, so talk with your pharmacist for personalized advice.

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

Not sure if Oregano 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 label
Go deeper

The Full Monographs Behind Oregano’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'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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