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Dietary supplement

PureBerry Ingredients & Drug Interactions

by Advanced Nutrition by Zahler

PureBerry label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking PureBerry 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 Most serious interaction: Moderate

PureBerry is a dietary supplement by Advanced Nutrition by Zahler with 1 active ingredient. Its ingredients are commonly taken for pregnancy and labor support, menstrual cramps, digestive upset and diarrhea.Based on those ingredients, 135 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Red Raspberry extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against PureBerry by Advanced Nutrition by Zahler

Ask about any prescription or over-the-counter medication and we check it for interactions with PureBerry by Advanced Nutrition by Zahler — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of PureBerry by Advanced Nutrition by Zahler

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 Sep 10, 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.

PureBerry is a liquid supplement with one active ingredient: red raspberry extract. The extract is mixed with inactive ingredients including vegetable glycerin, purified water, and stevia leaf extract to make up the final product.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Red Raspberry's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: supports uterine health.
  • We looked for evidence on: Dysmenorrhea, Labor pain, Menorrhagia, Parturition, uterine tone, menstrual health — and 1 related terms.
  • The closest evidence on file: Red Raspberry is rated "Insufficient Reliable Evidence To Rate" for Labor pain (Natural Medicines).
  • Also on file: Red Raspberry is rated "Insufficient Reliable Evidence To Rate" for Parturition, Dysmenorrhea, Menorrhagia.

The evidence we hold on red raspberry extract's effectiveness is limited. For the conditions listed—aging skin, cardiovascular disease, respiratory tract infections, heart failure, and diabetes—we have insufficient reliable evidence to rate how well it works.

If you're considering PureBerry for one of these purposes, talk with your doctor or pharmacist about what the current research actually shows and whether it's a reasonable choice for you.

The evidence, ingredient by ingredient Red Raspberry

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.

Red raspberry extract is generally well tolerated by most adults, but the safety data available is limited. The most common side effects reported are diarrhea, gastrointestinal upset, and stomach pain, though these don't typically occur at standard doses.

One unusual case of occupational asthma (wheezing and shortness of breath) was reported when someone inhaled red raspberry powder. Pregnancy and breastfeeding data are less clear.

Red raspberry has been used late in pregnancy, but safety in pregnancy isn't well established—use only under your doctor's guidance. We don't have enough reliable information to confirm safety while breastfeeding, so talk with your healthcare provider if you're nursing or planning to nurse.

Side effects, ingredient by ingredient Red Raspberry

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Red Raspberry.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 135 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking PureBerry, check with your doctor or pharmacist if you take blood thinners (anticoagulants or antiplatelet drugs) or insulin. Both interactions are Moderate severity—the first raises bleeding risk, and the second might lower your blood sugar too much.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

PureBerry may appeal to you if you're interested in red raspberry extract and don't take blood thinners or insulin. If you do take either of those medications, you'll want to check with your doctor or pharmacist first.

The evidence on how well it works for skin, heart, breathing, or blood sugar isn't solid yet, so manage expectations. Run this through the medication checker on this page before you start, then confirm it with your own provider.

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 Aug 23, 2022.

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 PureBerry, straight from the product label.

Brand Advanced Nutrition by Zahler
Barcode (UPC) 848998080648
Net contents 4 Fluid Ounce(s); 118.3 mL
Market status On market
Date entered into DSLD Aug 23, 2022
DSLD ID 275588
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Kosher, Adult Female (18 - 50 Years), 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 PureBerry by Advanced Nutrition by Zahler, 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:
5 mL
Maximum serving Sizes:
5 mL
Servings per container
24
UPC/BARCODE
848998080648
IngredientAmount% DV
Calories15 Calorie(s)--
Total Carbohydrates4 Gram(s)1%
Red Raspberry extract667 mg--

Other ingredients: kosher Vegetable Glycerin, Water, Purified, Stevia leaf extract

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

Supports uterine health

Non-GMO Gluten free Dairy free Soy free

Vegetarian friendly

Alcohol-free liquid Red Raspberry Leaf

Supports uterine tissue & muscles

Formula

Zahler PureBerry is derived from Organic Red Raspberry Leaf and contains the alkaloid fragrine, which supports uterine tissue and muscles. Red Raspberry also contains flavonoids among other powerful antioxidants.

Kosher Pareve Dairy Kosher OU (Kosher) Under the strict supervision of Rabbi Sh. Stern & the Orthodox Union

Alcohol-free liquid Red Raspberry Leaf

Women's health

General Statements

You may need additional supplements to support a healthy diet; consult your nutritionist for a formula that is right for you or contact us at 877-ASK-ZAHLER (877-275-9245) or [email protected]

Precautions

Keep out of reach of children

Do not use if safety seal is damaged or missing.

If pregnant, nursing or on medication, consult with your healthcare practitioner.

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.

Herbal Dietary Supplement

Seals/Symbols

Kosher Pareve Dairy Kosher OU (Kosher)

Manufactured in the USA

Storage

Store tightly closed in a cool, dry place

Brand IP Statement(s)

Feel better, everyday

PureBerry is a trademark of Advanced Nutrition by Zahler

Suggested/Recommended/Usage/Directions

Directions: Mix 1 teaspoon with 2 ounces of water or juice. May be taken twice a day or as directed by a healthcare practitioner. Shake well before use.

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

See for yourself

PureBerry by Advanced Nutrition by Zahler label

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

PureBerry 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 PureBerry by Advanced Nutrition by Zahler

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

Serving size5 mL Dosage formLiquid Servings per container24 Amounts shown are per serving.

Red Raspberry extract

Interacts with
135 drugs
667 mg per serving

Red raspberry leaf is a traditional herbal remedy most often used as a tea in late pregnancy and for menstrual discomfort, but solid scientific eviden...

Red Raspberry extract monograph & interactions

Other (inactive) ingredients: Kosher Vegetable Glycerin, Water, Purified, Stevia leaf extract. These complete the product’s ingredient list but are not active constituents.

Interaction report

PureBerry by Advanced Nutrition by Zahler Drug Interactions

Want to check YOUR meds against PureBerry?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
135Drugs
135 Moderate

Ingredients driving the most interactions

Red Raspberry extract 135

Individual Drug Interactions

The ingredients in PureBerry interact with 135 drugs. Click any drug to see the details.

1 of the 1 ingredient in PureBerry interact with drugs. Each result below shows which ingredient is responsible. Red Raspberry extract

Each ingredient & the kinds of drugs it affects

For each ingredient in PureBerry with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Red Raspberry extract2 drug types · 135 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking red raspberry leaf with anticoagulant/antiplatelet drugs might increase the risk of bleeding.
In vitro research suggests that red raspberry leaf extract has antiplatelet activity and enhances the in vitro effects of the antiplatelet medication cangrelor. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Insulin

Red raspberry leaf might reduce glucose levels in patients being treated with insulin.
In one case report, a 38-year-old patient with gestational diabetes, whose blood glucose was being controlled with medical nutrition therapy and insulin, developed hypoglycemia after consuming two servings of raspberry leaf tea daily for 3 days beginning at 32 weeks' gestation. The patient required an insulin dose reduction. The hypoglycemia was considered to be probably related to use of red raspberry leaf tea.

Likelihood Possible Evidence D
Red Raspberry extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for PureBerry, from the product label.

Advanced Nutrition by Zahler

See all Advanced Nutrition by Zahler products
Name
Advanced Nutrition by Zahler
City
Brooklyn
State
NY
ZipCode
11230
Phone Number
877-275-9245
Web Address
www.zahlers.com
Pharmacist Counseling Corner

PureBerry by Advanced Nutrition by Zahler: Common Questions

Does PureBerry by Advanced Nutrition by Zahler interact with any medications?
Yes. Based on its ingredients, PureBerry has a known interaction with 135 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
PureBerry 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 red raspberry safe to use while I'm pregnant?
Red raspberry extract has been used late in pregnancy, but we don't have solid safety data yet. The safety information we hold shows it's considered Likely Safe, Possibly Safe, and Likely Unsafe depending on the context—which means there's real uncertainty. Talk with your doctor or midwife before taking it while you're pregnant so you can make the best choice for your situation.
Can I take this while breastfeeding?
We don't have enough reliable information to confirm safety while breastfeeding. That's not a 'no'—it's a gap in the data. Check with your doctor or pharmacist before taking PureBerry if you're nursing.
What are the most common side effects?
Diarrhea, gastrointestinal upset, and stomach pain are the most common side effects reported with red raspberry, though they don't typically happen at standard doses. One unusual case of occupational asthma (wheezing and shortness of breath) was reported from inhaling the powder, not drinking it.
Does red raspberry extract actually work for diabetes?
The evidence we hold on red raspberry for diabetes is insufficient—we can't rate how well it works. If you're interested in it for blood sugar, talk with your doctor about what the research actually shows and whether it makes sense as part of your plan.
What's actually in this liquid besides the red raspberry extract?
PureBerry contains vegetable glycerin, purified water, and stevia leaf extract as inactive ingredients—these help make up the liquid and provide sweetness. The active part is the red raspberry extract itself.

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

Not sure if PureBerry 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.

PureBerry label
Go deeper

The Full Monographs Behind PureBerry’s Ingredients

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

Herb & supplement monograph

Red Raspberry

Interacts with 135 drugs

Red raspberry leaf is a traditional herbal remedy most often used as a tea in late pregnancy and for menstrual discomfort, but solid scientific evidence for these uses is limited. It is gene...

Read the full Red Raspberry monograph →
Sources

Sources & How We Checked

PureBerry'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 8 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.

Red Raspberry 8 references
  1. Eagon PK, Elm MS, Hunter DS, et al. Medicinal herbs: modulation of estrogen action. Era of Hope Mtg, Dept Defense; Breast Cancer Res Prog, Atlanta, GA 2000;Jun 8-11.
  2. Parsons M, Simpson M, Ponton T. Raspberry leaf and its effects on labour: safety and efficacy. Aust Coll Midwives Inc J 1999;12:20-5.
  3. Simpson M, Parsons M, Greenwood J, Wade K. Raspberry leaf in pregnancy: its safety and efficacy in labor. J Midwifery Womens Health 2001;46:51-9.. PubMed
  4. Mullen W, McGinn J, Lean ME, et al. Ellagitannins, flavonoids, and other phenolics in red raspberries and their contribution to antioxidant capacity and vasorelaxation properties. J Agric Food Chem 2002;50:5191-6.. PubMed
  5. Sherson, D., Andersen, B., Hansen, I., and Kjoller, H. Occupational asthma due to freeze-dried raspberry. Ann Allergy Asthma Immunol. 2003;90(6):660-663. PubMed
  6. Cheang KI, Nguyen TT, Karjane NW, Salley KE. Raspberry Leaf and Hypoglycemia in Gestational Diabetes Mellitus. Obstet Gynecol. 2016;128(6):1421-4. PubMed
  7. Dudzinska D, Bednarska K, Boncler M, Luzak B, Watala C. The influence of Rubus idaeus and Rubus caesius leaf extracts on platelet aggregation in whole blood. Cross-talk of platelets and neutrophils. Platelets. 2016;27(5):433-9.
  8. Henrotin Y, Cozannet RL, Fança-Berthon P, et al. Rubus idaeus extract improves symptoms in knee osteoarthritis patients: results from a phase II double-blind randomized controlled trial. BMC Musculoskelet Disord 2022;23(1):650. PubMed

See these in context on the Red Raspberry 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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