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Dietary supplement

Slippery Elm Ingredients & Drug Interactions

by Herbal Terra

Slippery Elm 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 Slippery Elm 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

Slippery Elm is a dietary supplement by Herbal Terra 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 certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Slippery Elm by Herbal Terra

Ask about any prescription or over-the-counter medication and we check it for interactions with Slippery Elm by Herbal Terra — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Slippery Elm by Herbal Terra

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 Jul 11, 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: certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract. Slippery elm is a demulcent — a substance that coats and soothes inflamed mucous membranes, mainly in the digestive tract.

The liquid extract form makes it easy to swallow and absorb. The only other ingredient is menstruum, a solvent used to create the extract.

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 Slippery Elm product and its label doesn't state a use — see Slippery Elm'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 on slippery elm isn't established in the data we hold. The ingredient's potential uses include support for constipation, diarrhea, cough, inflammatory bowel disease, and cancer, but the facts show insufficient reliable evidence to rate how well it works for any of these purposes.

If you're considering it for a specific condition, talk with your pharmacist or doctor about whether the science backs its use for your situation.

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. The main caution is contact dermatitis (skin irritation and itching) with topical forms or direct exposure to the pollen.

The facts note that safety during pregnancy isn't well established — there isn't enough reliable data to say one way or the other. The same goes for breastfeeding.

If you're pregnant or breastfeeding, talk with your doctor or pharmacist before starting this supplement.

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.

Slippery elm may slow the absorption of oral medications (Moderate severity). Because the interaction list spans over 2,000 medications, run your exact prescriptions through the interaction checker on this page before taking this supplement.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Slippery elm may be worth a try if you're looking for a traditional throat or digestive soother, but the evidence for its effectiveness isn't proven. The bigger issue is its potential to interfere with how your body absorbs oral medications.

Check any medications you take against our interaction tool before you start, and space doses at least two hours apart from other drugs.

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 Sep 25, 2020.

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, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 0606595847817
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 25, 2020
DSLD ID 234462
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten Free, Sugar 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 Slippery Elm by Herbal Terra, 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 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
0606595847817
IngredientAmount% DV
certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract970 mg--

Other ingredients: Menstruum

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

Origin of plant material: USA.

Manufactured in the USA in an FDA registered facility

Sugar free

Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Super concentrated liquid herbal extract

Non GMO

No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free

Suggested/Recommended/Usage/Directions

Direction Shake well before use. Adults take up to 30 drops (1 mL, one full squeeze of the dropper bulb) in 3-4 fl. oz of juice or water up to 4 times a day. We recommend to seek expert medical advice before taking this or any other herbal supplements.

FDA Disclaimer Statement

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

Precautions

Caution May have contraindications.

Do not use if you are allergic to any ingredients.

Consult a physician before using during pregnancy, if nursing, or if you are on any medications.

Keep out of the reach of children.

Storage

Store in a cool, dry, dark place.

Formula

Ulmus rubra

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

Made in USA Made in an FDA registered facility Natural Gluten Free

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

See for yourself

Slippery Elm by Herbal Terra label

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

Slippery Elm 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 Slippery Elm by Herbal Terra

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

Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract

Interacts with
2,022 drugs
970 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...

Certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract monograph & interactions

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

Interaction report

Slippery Elm by Herbal Terra Drug Interactions

Want to check YOUR meds against Slippery Elm?

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

certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract 2,022

Individual Drug Interactions

The ingredients in Slippery Elm interact with 2,022 drugs. Click any drug to see the details.

1 of the 1 ingredient in Slippery Elm interact with drugs. Each result below shows which ingredient is responsible. certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Slippery Elm 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.

certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract1 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
certified organic Slippery Elm (Ulmus rubra) dried bark liquid extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Slippery Elm, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra
Pharmacist Counseling Corner

Slippery Elm by Herbal Terra: Common Questions

Does Slippery Elm by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Slippery Elm 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 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.
Does slippery elm actually work for sore throat or digestion?
The science on slippery elm for sore throat, cough, constipation, diarrhea, and digestive issues hasn't been established in the data we hold — the evidence is listed as insufficient. That doesn't mean it doesn't work for some people, but we can't say based on reliable studies.
Can I take slippery elm with my other medications?
Slippery elm may interfere with how your body absorbs oral drugs, which could reduce how much medication you get. Check your specific medications using the interaction tool on this page, and ask your pharmacist about spacing doses at least two hours apart.
Is this safe to use long-term?
Slippery elm is generally well tolerated for short-term use, but high-quality safety data for longer periods are limited. If you're thinking about using it regularly, talk with your pharmacist or doctor.
Can I take this while pregnant or breastfeeding?
There isn't enough reliable data to know if slippery elm is safe during pregnancy or while breastfeeding. Talk with your doctor or pharmacist for personalized advice if you're pregnant, planning pregnancy, or nursing.
What's menstruum, the other ingredient listed?
Menstruum is a solvent used to extract the active compounds from the slippery elm bark and make it into a liquid form. It's inactive — the slippery elm itself is what provides the effect.
Can this cause an allergic reaction?
Slippery elm pollen is an allergen, and direct skin contact can cause contact dermatitis (itching and irritation) or urticaria (hives). If you have a known allergy to elm or similar plants, talk with your pharmacist before using this product.

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

Not sure if Slippery Elm 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 label
Go deeper

The Full Monographs Behind Slippery Elm’s Ingredients

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

Herb & supplement monograph

Slippery Elm

Interacts with 2,022 drugs

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 digestive tracts. Its mucilage can coat an...

Read the full Slippery Elm monograph →
Sources

Sources & How We Checked

Slippery Elm'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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