O'Leave20 Ingredients & Drug Interactions
What is this page for?
First and foremost: checking O'Leave20 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
O'Leave20 is a dietary supplement by SeraVita Nutraceuticals 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 O'Leave20 by SeraVita Nutraceuticals
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
O'Leave20 contains one active ingredient: olive leaf extract, a concentrated form of compounds from the olive plant. The capsule itself is made from gelatin and contains dicalcium phosphate and magnesium stearate as inactive ingredients.
Does it work?
Not established
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 show insufficient reliable evidence to rate its effectiveness.
How safe is it?
Well-documented data
Olive leaf extract seems to be well tolerated overall. The most commonly reported side effects in trials were headache and stomach discomfort.
One person in a clinical trial reported skin changes and acne. Keep in mind that olive as a food and oil is very safe, but concentrated supplements like this one are less studied, so safety isn't as well established — talk with your doctor before starting if you have concerns.
People with seasonal respiratory allergies to olive tree pollen should be aware of that possibility.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredient we could check. Still, run your specific medications through the tool on this page or ask your pharmacist, since interaction data for olive leaf extract may be limited.
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.
O'Leave20 is a single-ingredient supplement with no documented drug interactions in our data, though that's not a guarantee none exist. The evidence for whether it actually works for any of its claimed uses isn't established yet.
Before you start, especially if you take medications or have allergies, check in with your own doctor or pharmacist — they know your full health picture.
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, 2017.
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 O'Leave20, straight from the product label.
| Brand | SeraVita Nutraceuticals |
|---|---|
| Barcode (UPC) | 793573885104 |
| Net contents | 200 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | May 24, 2017 |
| DSLD ID | 73553 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 O'Leave20 by SeraVita Nutraceuticals, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Olive leaf extract | 500 mg | -- |
Other ingredients: Dicalcium Phosphate, Magnesium Stearate, Gelatin Capsule
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.
General Statements
Helps support the body's immune system. "And the leaves of the tree are for the healing of the nations", Rev. 22:2
Label design by JargonArt.com
Suggested/Recommended/Usage/Directions
Directions for use: 1 capsule 2 x daily. For intensive use take 1 capsule 6 x daily.
Precautions
Tamper resistant seal Do not use if safety seal is broken or missing
Keep out of reach of children
If you are pregnant or nursing, seek the advice of your physician before using this product.
Storage
Store in a dry cool place at 58-85(0)F (15-30(0)C)
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration.
Formula
Olive leaf extract 20% standardized
FDA Statement of Identity
Dietary Supplement
Formulation
This product contains no added yeast, wheat, corn, soy, salt, sugar, dairy products, artificial colorings, flavorings or preservatives.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
O'Leave20 by SeraVita Nutraceuticals 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 O'Leave20 by SeraVita Nutraceuticals
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 container200 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: Dicalcium Phosphate, Magnesium Stearate, Gelatin Capsule. These complete the product’s ingredient list but are not active constituents.
O'Leave20 by SeraVita Nutraceuticals Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in O'Leave20. 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 O'Leave20, from the product label.
SeraVita Nutraceuticals
See all SeraVita Nutraceuticals products- Name
- SeraVita LLC
- Street Address
- 112 North Curry St.
- City
- Carson City
- State
- NV
- ZipCode
- 89703
- Phone Number
- 877-835-2434
- Web Address
- www.seravita.com
O'Leave20 by SeraVita Nutraceuticals: Common Questions
Does O'Leave20 by SeraVita Nutraceuticals interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does olive leaf extract actually work for any of these conditions?
What are the most common side effects?
Is it safe to take during pregnancy or breastfeeding?
Why does the label say I should avoid concentrated olive supplements?
Can people with olive pollen allergies take this?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if O'Leave20 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 O'Leave20’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
O'Leave20'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