Olive Leaf Extract Ingredients & Drug Interactions
by Thorne
What is this page for?
First and foremost: checking Olive Leaf Extract 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
Olive Leaf Extract is a dietary supplement by Thorne with 1 active ingredient. Its ingredients are commonly taken for heart health, high blood pressure, high cholesterol.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Olive Leaf Extract by Thorne
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: olive leaf extract. It's made from the leaves of the olive plant and has been used traditionally for various purposes.
The capsules also contain a few inactive ingredients — hypromellose (a capsule material), leucine, and silicon dioxide — which are there to hold the product together and help it work smoothly in your body.
Does it work?
Not established
The evidence for olive leaf extract isn't established in the data we hold. Our monograph lists six conditions it's been studied for — osteoporosis, indigestion (dyspepsia), exercise-induced respiratory infections, shingles (herpes zoster), influenza, and osteoarthritis — but for all of them, there's insufficient reliable evidence to rate whether it actually works.
If you're considering it for a specific health concern, talk with your doctor or pharmacist about what the current research shows.
How safe is it?
Well-documented data
Olive leaf extract seems to be well tolerated overall. The most common side effects reported in trials are headache and stomach discomfort.
One person in a trial reported skin problems and acne. A few important notes: olives and olive oil as foods are very safe, but concentrated supplements like this one are studied less, so it's wise to get your doctor's approval before starting.
Also, if you have seasonal allergies to olive tree pollen, this product might be something to avoid or discuss with your allergist first.
Meds to double-check
No known interactions
No interactions are documented in our data for olive leaf extract. That doesn't mean interactions can't happen, so if you're on any regular medications, it's still worth checking with your pharmacist before you start.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. No medication interactions are currently documented, and safety information is well characterized.
This product is a single-ingredient extract with no documented medication interactions. If you're interested in it for a specific reason — bone health, digestion, or another condition — know that the evidence isn't clear yet.
Talk with your pharmacist about whether it's a good fit for you, especially if you have pollen allergies or are pregnant or breastfeeding.
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 May 24, 2023.
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 Olive Leaf Extract, straight from the product label.
| Brand | Thorne |
|---|---|
| Barcode (UPC) | 693749763031 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | May 24, 2023 |
| DSLD ID | 284248 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Olive Leaf Extract by Thorne, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Olive leaf extract | 500 mg | -- |
Other ingredients: Hypromellose, Leucine, Silicon Dioxide
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
Gluten free
Suggested/Recommended/Usage/Directions
Suggested use: Take 1 capsule two to three times daily or as recommended by your health-care practitioner.
Precautions
Tamper evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Storage
Store tightly sealed in a cool, dry place.
Seals/Symbols
Manufactured in the USA using US & imported ingredients
FDA Statement of Identity
Dietary Supplement
Formula
Olea standardized to Oleuropein 18%
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Olive Leaf Extract by Thorne 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 Olive Leaf Extract by Thorne
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.
Olive leaf extract
No knowninteractions
Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyr...
Olive leaf extract monograph & interactionsOther (inactive) ingredients: Hypromellose, Leucine, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
Olive Leaf Extract by Thorne Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Olive Leaf Extract. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Olive Leaf Extract, from the product label.
Thorne
See all Thorne products- Name
- Thorne Research, Inc.
- Phone Number
- 1-800-228-1966
- Web Address
- Thorne.com
Olive Leaf Extract by Thorne: Common Questions
Does Olive Leaf Extract by Thorne interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What's the most common side effect?
Is olive leaf extract the same as olive oil?
Can I take this if I'm pregnant or breastfeeding?
Does it actually work for what it claims?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Olive Leaf Extract 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 Olive Leaf Extract’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Olive Leaf Extract'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 2 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.
Olive 2 references
- Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. PubMed
- Somerville V, Moore R, Braakhuis A. The effect of olive leaf extract on upper respiratory illness in high school athletes: A randomised control trial. Nutrients. 2019;11(2). pii: E358. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC