No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Olive Leaf 400 mg Ingredients & Drug Interactions

by Eclectic Herb

Olive Leaf 400 mg label
See full label image
Capsule Category: Botanical
No known interaction
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Olive Leaf 400 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

The interaction bottom line No known interaction

Olive Leaf 400 mg is a dietary supplement by Eclectic Herb 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.

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HelloPharmacist Scorecard of Olive Leaf 400 mg by Eclectic Herb

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 Aug 27, 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: olive (400 mg per capsule). The supplement also includes hypromellose, an inactive ingredient used to form the capsule shell.

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 Olive product and its label doesn't state a use — see Olive'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 olive leaf extract isn't established in the data we hold. The product is marketed for osteoporosis, dyspepsia (indigestion), exercise-induced respiratory infections, herpes zoster (shingles), influenza, and osteoarthritis, but all of these conditions carry an "insufficient reliable evidence" rating — meaning the research so far hasn't been enough to show whether it works for them.

The evidence, ingredient by ingredient Olive

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.

Olive as a food and oil is very safe, but concentrated supplements like this one are less studied. In trials, olive fruit and olive leaf extract have been well tolerated overall.

The most common side effects are headache and stomach discomfort. One person reported skin and acne issues, and people allergic to olive tree pollen may experience seasonal respiratory symptoms.

Data on safety during pregnancy and lactation is not on file. Talk with your doctor or pharmacist before using this product if you're pregnant, nursing, or planning either.

Side effects, ingredient by ingredient Olive

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredients we could check. That said, run your medications through the search tool on this page and talk with your pharmacist or doctor before starting, especially if you take blood pressure or blood sugar medications or have any condition this product claims to address.

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 400 mg is generally well tolerated and shows no documented interactions with medications. The evidence for its effectiveness isn't established in our data.

Anyone interested in it — especially if they're pregnant, nursing, or have olive pollen allergies — should check with their doctor or pharmacist first.

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 18, 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

At a glance

General information

Key facts about Olive Leaf 400 mg, straight from the product label.

Brand Eclectic Herb
Barcode (UPC) 023363309962
Net contents 90 Veg Cap(s)
Market status On market
Date entered into DSLD Jul 18, 2023
DSLD ID 294841
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
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 Olive Leaf 400 mg by Eclectic Herb, 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 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
90
UPC/BARCODE
023363309962
IngredientAmount% DV
Olive400 mg--

Other ingredients: Hypromellose

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.
Formulation

Raw Naturally concentrated US grown

Gluten free Non GMO

Vegan

For peak plant power

Formula

Antioxidant Whole herbs

We start and end with whole herbs, from farm to capsule, we use naturopathic wisdom and innovative processes to create exceptional products.

100% kosher.

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

@eclecticherb

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: 1-3 capsules per day

Precautions

Keep out of reach of children.

Discontinue use if unusual symptoms occur.

Consult your health care advisor regarding herbs with pregnancy, infants, or prescription drugs.

Consult your health care advisor regarding herbs with pregnancy, infants, or prescription drugs.

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

See for yourself

Olive Leaf 400 mg by Eclectic Herb label

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

Olive Leaf 400 mg 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 Olive Leaf 400 mg by Eclectic Herb

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 container90 Amounts shown are per serving.

Olive

No known
interactions
400 mg per serving

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 monograph & interactions

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

Interaction report

Olive Leaf 400 mg by Eclectic Herb Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Olive Leaf 400 mg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Olive Leaf 400 mg, from the product label.

Eclectic Herb

See all Eclectic Herb products
Name
Eclectic Herb
Street Address
755 NE 6th St.
City
Gresham
State
Oregon
ZipCode
97030
Phone Number
503.668.4120
Web Address
www.eclecticherb.com
Pharmacist Counseling Corner

Olive Leaf 400 mg by Eclectic Herb: Common Questions

Does Olive Leaf 400 mg by Eclectic Herb interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Olive Leaf 400 mg. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Olive Leaf 400 mg 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.
Is this safe if I'm pregnant or breastfeeding?
We don't have safety data on file for olive leaf extract during pregnancy or lactation. Talk with your doctor or pharmacist before using it if you're pregnant, nursing, or planning either — they can give you personalized advice based on your situation.
What are the most common side effects?
In trials, headache and stomach discomfort were the most commonly reported side effects. One person reported skin and acne issues. People who are allergic to olive tree pollen may experience seasonal respiratory symptoms.
Does it actually work for the conditions it claims to treat?
The evidence isn't established in our data. Olive leaf extract carries an "insufficient reliable evidence" rating for osteoporosis, indigestion, exercise-induced respiratory infections, shingles, influenza, and osteoarthritis — meaning research so far hasn't been enough to show whether it works.
Why is the difference between olive oil and this supplement important?
Olives and olive oil as foods are very safe with a long history of use. Concentrated supplements like this one are less studied, so their long-term safety profile isn't as clear. That's why we caution checking with your doctor before taking it.
What's in this capsule besides the olive leaf?
The capsule shell is made of hypromellose, an inactive ingredient. The active ingredient is 400 mg of olive.

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

Not sure if Olive Leaf 400 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Olive Leaf 400 mg label
Go deeper

The Full Monographs Behind Olive Leaf 400 mg’s Ingredients

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

Herb & supplement monograph

Olive

Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyrosol. Olive oil as part of a Mediterrane...

Read the full Olive monograph →
Sources

Sources & How We Checked

Olive Leaf 400 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.

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
  1. Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. PubMed
  2. 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

See these in context on the Olive 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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