Olive Leaf Extract 500 mg Ingredients & Drug Interactions
by NOW
What is this page for?
First and foremost: checking Olive Leaf Extract 500 mg 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 500 mg is a dietary supplement by NOW 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 500 mg by NOW
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 at 500 mg per capsule. Olives and olive oil are familiar foods and very safe, but concentrated supplements like this one are less studied than whole foods, so the long-term safety picture isn't as clear.
The capsule also holds three inactive ingredients—hypromellose, stearic acid, and silicon dioxide—which are fillers and binders.
Does it work?
Couldn't assess
The evidence for olive leaf extract isn't established for the uses listed here. We hold insufficient reliable evidence to rate it for osteoporosis, indigestion (dyspepsia), exercise-related respiratory infections, shingles, flu, or osteoarthritis.
If you're considering it for one of these reasons, that's a good conversation to have with your doctor or pharmacist about whether the data supports it for your situation.
How safe is it?
Well-documented data
Olive leaf extract seems to be well tolerated overall, and olives plus olive oil as everyday foods are very safe. Headache and stomach discomfort were the most common side effects in trials; one person reported acne and skin issues.
Because concentrated supplements are less studied than food sources, the safety notes advise checking with your doctor before taking this product if you have health concerns. Also note: if you're sensitive to pollen allergies, olive tree pollen can trigger seasonal respiratory symptoms.
Meds to double-check
No known interactions
No interactions are documented in our data for olive leaf extract. That said, our information on this ingredient is limited, so before you combine it with any medications—particularly blood thinners or drugs you take daily—confirm with your own doctor or pharmacist that it won't interfere.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Olive Leaf Extract 500 mg may appeal to you if you're interested in herbal support, but we don't have reliable evidence it works for the conditions listed on the label. It's generally well tolerated, though some people report headache or stomach upset.
Before you start, especially if you have ongoing health issues or take medications, talk it over with your own doctor or pharmacist to see if it's right for you.
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 27, 2021.
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 500 mg, straight from the product label.
| Brand | NOW |
|---|---|
| Barcode (UPC) | 733739047229 |
| Net contents | 120 Veg Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jul 27, 2021 |
| DSLD ID | 245046 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, 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 Olive Leaf Extract 500 mg by NOW, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Olive leaf extract | 500 mg | -- |
Other ingredients: Hypromellose, Stearic Acid, 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.
Suggested/Recommended/Usage/Directions
Suggested usage: Take 1 capsule 1 to 3 times daily as needed.
Formula
The olive tree (Olea europaea) has been an integral part of Mediterranean and Middle Eastern cultures for millennia. Although traditional herbalists have primarily used its leaves in teas, they have also been sued in foods. Olive leaves have the highest free radical scavenging power amount the different parts of the olive tree. NOW Olive Leaf extract is manufactured under strict quality control conditions and is standardized to a minimum of 6% oleuropein.
Free radical scavenger Standardized to 6% Oleuropein
Triangle K (Kosher)
Botanicals/herbs
Formulation
NOW Olive Leaf extract is manufactured under strict quality control conditions and is standardized to a minimum of 6% oleuropein.
Non-GMO
Vegetarian/vegan
Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients.
Natural color variation may occur in this product.
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.
Precautions
Caution: For adults only.
Consult a physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that process other ingredients containing these allergens.
FDA Statement of Identity
A Dietary Supplement
Seals/Symbols
Triangle K (Kosher)
GMP Quality Assured
General Statements
Family owned since 1968.
Storage
Store in a cool, dry place after opening.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Olive Leaf Extract 500 mg by NOW 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 500 mg by NOW
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Veg Capsule(s) Dosage formCapsule 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, Stearic Acid, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
Olive Leaf Extract 500 mg by NOW Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Olive Leaf Extract 500 mg. 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 500 mg, from the product label.
NOW
See all NOW products- Name
- NOW Foods
- Street Address
- 395 S. Glen Ellyn Rd.
- City
- Bloomingdale
- State
- IL
- ZipCode
- 60108
- Web Address
- nowfoods.com
Olive Leaf Extract 500 mg by NOW: Common Questions
Does Olive Leaf Extract 500 mg by NOW interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is olive leaf extract safe in concentrated supplement form?
Does olive leaf extract actually work for the conditions on the label?
What are the possible side effects?
Is it safe to take during pregnancy or breastfeeding?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Olive Leaf Extract 500 mg 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 500 mg’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 500 mg'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