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Dietary supplement

Slippery Elm Lozenges 150 mg Unflavored Ingredients & Drug Interactions

by Planetary Herbals

Lozenge Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Slippery Elm Lozenges 150 mg Unflavored is a dietary supplement by Planetary Herbals with 1 active ingredient. Its ingredients are commonly taken for sore throat and cough, heartburn and acid reflux, digestive upset and ibs.Based on those ingredients, 2,022 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Slippery Elm. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals

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: slippery elm inner bark at 150 mg per lozenge. Slippery elm is the dried inner bark of the elm tree, and it's traditionally used because of a substance it contains called mucilage — a thick, gel-like compound that coats your throat and digestive tract.

The lozenges also contain inactive ingredients (fructose, magnesium stearate, and stevia leaf concentrate) that help form and flavor the lozenge.

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 Slippery Elm's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: herbal throat support for minor irritation.
  • We looked for evidence on: Pharyngitis, Cough, sore throat, throat irritation.
  • The closest evidence on file: Slippery Elm is rated "Insufficient Reliable Evidence To Rate" for Cough (Natural Medicines).
  • Also on file: Slippery Elm is rated "Insufficient Reliable Evidence To Rate" for Pharyngitis.

The evidence for slippery elm isn't established in our data. The product facts list several uses — cough, constipation, diarrhea, inflammatory bowel disease (IBD), and cancer — but they're all rated as having insufficient reliable evidence to rate.

That means the studies so far aren't robust enough to say whether it actually works for these purposes.

The evidence, ingredient by ingredient Slippery Elm

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.

Slippery elm is generally well tolerated for short-term use, though high-quality safety data are limited. Some people have reported contact dermatitis or hives after touching slippery elm or its pollen, which is a known allergen.

There isn't enough reliable data to know whether slippery elm is safe during pregnancy, and there's too little information on safety while breastfeeding. If you're pregnant or breastfeeding, talk with your doctor or pharmacist before taking this product.

Side effects, ingredient by ingredient Slippery Elm

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 — Slippery Elm.
  • The most serious interaction on file is rated Moderate.
  • For scale: 2,023 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 Slippery Elm Lozenges, check any oral medications you're on with your doctor or pharmacist. Slippery elm's mucilage may slow how your body absorbs oral drugs and lower their levels in your blood, a Moderate-severity interaction.

Space out this product and your medications by a few hours if you can, but your pharmacist or doctor can give you the best timing for your specific drugs.

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.

Slippery Elm Lozenges may be worth trying if you're looking for a throat or digestive comfort supplement, but keep in mind the evidence for it isn't solid. The main thing to watch is how it might slow down absorption of your other oral medications — so check your exact prescriptions with your own doctor or pharmacist before you start.

And if you're pregnant or breastfeeding, get personalized advice from your healthcare provider 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 Nov 20, 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

At a glance

General information

Key facts about Slippery Elm Lozenges 150 mg Unflavored, straight from the product label.

Brand Planetary Herbals
Barcode (UPC) 021078106487
Net contents 24 Lozenge(s)
Market status On market
Date entered into DSLD Nov 20, 2017
DSLD ID 80942
Product type Botanical
Supplement form Lozenge
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals, 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 Lozenge(s)
Maximum serving Sizes:
1 Lozenge(s)
UPC/BARCODE
021078106487
IngredientAmount% DV
Slippery Elm150 mg--

Other ingredients: Fructose, Magnesium Stearate, Stevia leaf concentrate

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.
General Statements

Herbal throat support

Slippery Elm (Ulmas Rubra) is a tree native to North America. The inner bark has been used for generations to soothe minor throat irritation associated with exposure to dust, excessive talking and other everyday activities. These Planetary Herbals Slippery Elm Lozenges are strawberry flavored for great taste.

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: 1 lozenge as needed. Do not exceed 10 lozenges daily. For optimal results, allow lozenge to slowly dissolve in the mouth for prolonged contact with the throat.

Precautions

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

Storage

Store in a cool, dry place.

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.

General

PF0648 REV G111

See for yourself

Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals label

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

What’s inside

The Ingredients in Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals

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

Serving size1 Lozenge(s) Dosage formLozenge Amounts shown are per serving.

Slippery Elm

Interacts with
2,022 drugs
150 mg per serving

Slippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated di...

Slippery Elm monograph & interactions

Other (inactive) ingredients: Fructose, Magnesium Stearate, Stevia leaf concentrate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals Drug Interactions

Want to check YOUR meds against Slippery Elm Lozenges 150 mg Unflavored?

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
2,022Drugs
2,022 Moderate

Ingredients driving the most interactions

Slippery Elm 2,022

Each ingredient & the kinds of drugs it affects

For each ingredient in Slippery Elm Lozenges 150 mg Unflavored 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.

Slippery Elm1 drug type · 2,022 drugs

Oral Drugs

Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Slippery elm inner bark contains mucilage, which may interfere with the absorption of orally administered drugs.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Slippery Elm Lozenges 150 mg Unflavored, from the product label.

Planetary Herbals

See all Planetary Herbals products
Name
Planetary Herbals, LLC
Street Address
P.O. Box 1760
City
Soquel
State
CA
ZipCode
95073
Web Address
www.planetaryherbals.com
Pharmacist Counseling Corner

Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals: Common Questions

Does Slippery Elm Lozenges 150 mg Unflavored by Planetary Herbals interact with any medications?
Yes. Based on its ingredients, Slippery Elm Lozenges 150 mg Unflavored has a known interaction with 2,022 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Slippery Elm Lozenges 150 mg Unflavored 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.
Can I take this if I'm on other medications?
You should check with your doctor or pharmacist first. Slippery elm may interfere with how your body absorbs oral medications, which could make them less effective. Your healthcare provider can help you time the doses to minimize that risk.
Is slippery elm safe during pregnancy?
There isn't enough reliable safety data to know. Some sources caution against it during pregnancy. Talk with your doctor or pharmacist before taking it if you're pregnant.
What is slippery elm, and what's it supposed to do?
Slippery elm is the inner bark of the elm tree, which contains a gel-like substance called mucilage that coats your throat and digestive tract. It's traditionally used for cough, constipation, and digestive comfort, but the evidence for these uses isn't strong enough to rate yet.
Are there any side effects?
Slippery elm is generally well tolerated for short-term use. Some people have reported contact dermatitis or hives after touching the plant or inhaling its pollen, which is an allergen.
Is this safe while breastfeeding?
There's too little information to know. Talk with your doctor or pharmacist before using this product if you're breastfeeding.

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

Not sure if Slippery Elm Lozenges 150 mg Unflavored is safe with your meds?

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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.

Slippery Elm Lozenges 150 mg Unflavored label
Go deeper

The Full Monographs Behind Slippery Elm Lozenges 150 mg Unflavored’s Ingredients

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

Sources

Sources & How We Checked

Slippery Elm Lozenges 150 mg Unflavored'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 3 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.

Slippery Elm 3 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Czarnecki D, Nixon R, Bekhor P, and et al. Delayed prolonged contact urticaria from the elm tree. Contact Dermatitis 1993;28:196-197. PubMed

See these in context on the Slippery Elm 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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