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

Olive Leaf Glycerite Ingredients & Drug Interactions

by NOW

Liquid Category: Botanical
No known interaction
The interaction bottom line No known interaction

Olive Leaf Glycerite 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 Glycerite 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.

From our pharmacy team — supplement deep dive

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 leaf extract. Olive leaf has been studied for a range of uses, from bone and joint health to immune support during cold and flu season.

The extract is delivered in a glycerite base — a liquid made with glycerin and water — which makes it easy to take by mouth. Glycerin and water are inactive ingredients (the base that carries the active component); they're not counted as actives and they're there to make the product drinkable.

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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: free radical scavenger antioxidant support.
  • We looked for evidence on: oxidative stress, inflammation, cardiovascular health, immune support.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence for olive leaf extract isn't clear yet for the conditions it's marketed for. Our data shows insufficient reliable evidence to rate how well it works for osteoporosis, dyspepsia (indigestion), exercise-induced respiratory infections, shingles, influenza, or osteoarthritis.

That means studies haven't given us enough solid proof one way or the other. If you're thinking about using this for a specific health concern, talk it over with your doctor or pharmacist about whether the current evidence supports a try.

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. Most people tolerate olive leaf extract well when taken by mouth.

The most common side effects reported in trials are headache and stomach discomfort. One person in a trial reported skin issues and acne.

Keep in mind that olive tree pollen can trigger seasonal respiratory allergy in people who are sensitive to it. Data on pregnancy and breastfeeding safety for this product isn't on file.

Since the safety of concentrated olive leaf supplements during pregnancy or lactation isn't well known, talk with your doctor or pharmacist before using it if you're pregnant, planning to become pregnant, or breastfeeding.

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 ingredient in this product. That said, use the search tool on this page to check your exact medications, and talk with your doctor or pharmacist before starting it if you want to be certain.

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 Glycerite by NOW is generally well tolerated and has no documented drug interactions. The evidence for its effectiveness on specific health conditions isn't established yet in the data we hold.

It's a simple one-ingredient product, so you're not juggling multiple actives. If you're considering it for a particular reason, check in with your doctor or pharmacist about whether it's the right choice 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 25, 2024.

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 Glycerite, straight from the product label.

Brand NOW
Barcode (UPC) 733739048981
Net contents 2 Fluid Ounce(s); 59 Milliliter(s)
Market status On market
Date entered into DSLD Jul 25, 2024
DSLD ID 313887
Product type Botanical
Supplement form Liquid
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 Glycerite by NOW, 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:
1.6 mL
Maximum serving Sizes:
1.6 mL
Servings per container
37
UPC/BARCODE
733739048981
IngredientAmount% DV
Calories5 Calorie(s)--
Olive Leaf Extract200 mg--

Other ingredients: Glycerin, Water

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.
Suggested/Recommended/Usage/Directions

Suggested Usage: Shake well before using. Take 2 droppersful 1 to 2 times daily as needed.

Formula

Olive leaves possess many active compounds, mainly phenols and lignans that protect the plant from environmental stress. Oleuropein, one of the best known active constituents of olive leaf, has been found to exert powerful free radical scavenging activity.

18% Oleuropein

Triangle K (Kosher)

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. Keep out of reach of children.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish or shellfish ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation

Free radical scavenger

Alcohol-free Non-GMO

Vegetarian/vegan

Made and quality tested in the USA with globally sourced ingredients.

Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish or shellfish ingredients.

Natural color variation may occur in this product.

FDA Statement of Identity

A Dietary Supplement

Seals/Symbols

Triangle K (Kosher)

GMP Quality Assured

General Statements

Botanicals/herbs Family owned since 1968.

See for yourself

Olive Leaf Glycerite by NOW label

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

What’s inside

The Ingredients in Olive Leaf Glycerite by NOW

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

Serving size1.6 mL Dosage formLiquid Servings per container37 Amounts shown are per serving.

Olive Leaf Extract

No known
interactions
200 mg per serving Form: Oleuropein

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 & interactions

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

Interaction report

Olive Leaf Glycerite by NOW Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Olive Leaf Glycerite. 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 Glycerite, 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
Pharmacist Counseling Corner

Olive Leaf Glycerite by NOW: Common Questions

Does Olive Leaf Glycerite by NOW interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Olive Leaf Glycerite. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Olive Leaf Glycerite 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.
What is olive leaf extract?
It's a concentrated form of compounds from olive leaves. Olive oil and olives as food are very safe, but this supplement is a more potent extract and hasn't been studied as thoroughly.
What are the most common side effects?
Headache and stomach discomfort are the side effects reported most often in trials. One person reported skin issues and acne. Most people tolerate it well.
Can I take this if I'm pregnant or breastfeeding?
The safety data for this product during pregnancy and breastfeeding isn't on file. Talk with your doctor or pharmacist before using it — they can give you personalized advice based on your situation.
Does olive leaf extract actually work for the conditions it claims to help?
The evidence isn't clear yet. We have insufficient reliable evidence to say how well it works for bone health, digestion, immune support, shingles, flu, or joint health. Your doctor or pharmacist can help you decide whether to try it.
Are there any inactive ingredients I should know about?
The product contains glycerin and water as the base — these are inert ingredients that make it a liquid you can take by mouth. Neither is a concern for most people.

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

Not sure if Olive Leaf Glycerite 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 Glycerite label
Go deeper

The Full Monographs Behind Olive Leaf Glycerite’s Ingredients

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

Sources

Sources & How We Checked

Olive Leaf Glycerite'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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