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. Olive leaf is a concentrated form of compounds from the olive tree, studied for potential effects on bone health, digestive comfort, immune function, and joint support.
The capsule itself also holds three inactive ingredients — hypromellose (a capsule material), leucine, and silicon dioxide — which serve as binders and flow agents but play no therapeutic role.
Does it work?
Not established
The evidence for olive leaf extract isn't established in the data we hold. The monograph lists six conditions it's been studied for — osteoporosis, indigestion (dyspepsia), exercise-induced respiratory infections, shingles (herpes zoster), influenza, and osteoarthritis — but all carry a rating of insufficient reliable evidence.
That means the research so far isn't strong enough to say whether it works for any of these uses. If you're considering it for a specific health concern, talk it over with your doctor or pharmacist.
How safe is it?
Well-documented data
Olive leaf extract appears 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.
Olives and olive oil as foods are very safe, but concentrated supplements like this one are less studied, and the safety data isn't as complete. If you have seasonal allergies triggered by olive tree pollen, be aware that might be a factor.
Because the long-term safety profile of concentrated olive leaf supplements isn't fully known, get your doctor's approval before starting.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we checked. That doesn't mean they're impossible; it just means we haven't found records of them.
Before you start, confirm with your own doctor or pharmacist that it's safe alongside any medications you take.
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.
Olive Leaf Extract by Thorne is a single-ingredient supplement with no documented interactions with medications we could check. It's generally well tolerated, though headache and stomach discomfort have been reported in trials, and the evidence for its effectiveness on the conditions it's marketed for isn't yet established in reliable research.
If you're interested in trying it, talk with your doctor or pharmacist first — especially if you have olive pollen allergies or take any medications.
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 is olive leaf extract, and what is it supposed to do?
Is olive leaf extract safe if I eat olives and olive oil?
What are the most common side effects?
Can I take this if I have allergies to olive tree pollen?
Does it interact with any medications?
Is it safe during pregnancy or while breastfeeding?
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