Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Slippery Elm Bark 440 mg Ingredients & Drug Interactions

by Christopher's Original Formulas

Slippery Elm Bark 440 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Slippery Elm Bark 440 mg 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 Bark 440 mg is a dietary supplement by Christopher's Original Formulas 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.

Jump to a section

Check Your Meds Against Slippery Elm Bark 440 mg by Christopher's Original Formulas

Ask about any prescription or over-the-counter medication and we check it for interactions with Slippery Elm Bark 440 mg by Christopher's Original Formulas — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Slippery Elm Bark 440 mg by Christopher's Original Formulas

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.

This product contains one active ingredient: slippery elm inner bark at 440 mg per capsule. The capsule itself is plant-derived.

Slippery elm is a traditional herbal remedy made from the inner bark of the slippery elm tree; it's rich in mucilage, a gel-like substance that coats the digestive tract.

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 we hold doesn't establish that slippery elm works reliably for any condition. It's been used traditionally for cough, constipation, diarrhea, and inflammatory bowel disease, but we have insufficient reliable evidence to rate how well it actually performs for any of these.

If you're considering it for a specific health concern, talk it over with your doctor or pharmacist about what the research actually supports.

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, but high-quality safety data are limited. Topically, it can cause contact dermatitis or allergic skin reactions (urticaria); the pollen itself is an allergen, so avoid direct contact if you're sensitive.

The safety data for pregnancy are not robust enough to know either way — talk with your doctor or pharmacist about whether it's right for you if you're pregnant. Breastfeeding safety data are too sparse to advise; check with your own healthcare provider before using while nursing.

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 you take this product, check with your doctor or pharmacist about any oral medications you're on. Slippery elm may reduce how well they're absorbed and lower their blood levels — a moderate interaction documented across over 2,000 individual drugs.

Spacing doses by two hours may help, but you need to confirm that approach works for your specific medications.

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 remedy, but know that its effectiveness isn't well established in the data we hold. The bigger concern is that it can interfere with how your body absorbs other oral medications — so check your exact drug list with your doctor or pharmacist before starting.

It's generally well tolerated short-term, but safety data long-term are thin.

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 Apr 25, 2019.

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 Bark 440 mg, straight from the product label.

Brand Christopher's Original Formulas
Barcode (UPC) 084783867760
Net contents 100 Vegetarian Cap(s)
Market status On market
Date entered into DSLD Apr 25, 2019
DSLD ID 200540
Product type Botanical
Supplement form Capsule
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 Bark 440 mg by Christopher's Original Formulas, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
50
UPC/BARCODE
084783867760
IngredientAmount% DV
Slippery Elm880 mg--

Other ingredients: plant-derived Capsule

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

Directions: As a dietary supplement, take 2 capsules up to 3 times a day with a glass of water, or as directed by your health care professional.

Storage

Store in a cool dry place.

Brand IP Statement(s)

2010 Wholistic Botanicals L.L.C All Rights Reserved

John R. Christopher

FDA Statement of Identity

Dietary Supplement

Formula

Slippery Elm Bark 440 mg each

Formulation

No Added Fillers or Chemicals

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.

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

See for yourself

Slippery Elm Bark 440 mg by Christopher's Original Formulas label

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

Slippery Elm Bark 440 mg 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 Bark 440 mg by Christopher's Original Formulas

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

Serving size2 Capsule(s) Dosage formCapsule Servings per container50 Amounts shown are per serving.

Slippery Elm

Interacts with
2,022 drugs
880 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: Plant-derived Capsule. These complete the product’s ingredient list but are not active constituents.

Interaction report

Slippery Elm Bark 440 mg by Christopher's Original Formulas Drug Interactions

Want to check YOUR meds against Slippery Elm Bark 440 mg?

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

Individual Drug Interactions

The ingredients in Slippery Elm Bark 440 mg interact with 2,022 drugs. Click any drug to see the details.

1 of the 1 ingredient in Slippery Elm Bark 440 mg interact with drugs. Each result below shows which ingredient is responsible. Slippery Elm

Each ingredient & the kinds of drugs it affects

For each ingredient in Slippery Elm Bark 440 mg 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
Slippery Elm full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Slippery Elm Bark 440 mg, from the product label.

Christopher's Original Formulas

See all Christopher's Original Formulas products
Name
Wholistic Botanicals L.L.C.
City
Spanish Fork
State
UT
ZipCode
84660
Phone Number
1-800-453-1406
Web Address
www.drchristopher.com
Pharmacist Counseling Corner

Slippery Elm Bark 440 mg by Christopher's Original Formulas: Common Questions

Does Slippery Elm Bark 440 mg by Christopher's Original Formulas interact with any medications?
Yes. Based on its ingredients, Slippery Elm Bark 440 mg 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 Bark 440 mg 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 slippery elm while I'm pregnant?
There isn't enough reliable safety data to know either way. Some sources caution against it during pregnancy. Talk with your doctor or pharmacist about whether it's appropriate for you right now.
Is slippery elm safe while breastfeeding?
There's too little safety information to advise. Check with your own doctor or pharmacist before using it if you're nursing.
Can slippery elm cause allergic reactions?
Yes. The pollen is a known allergen, and contact dermatitis and skin reactions (urticaria) have been reported after exposure to slippery elm or compounds in the bark. If you're allergic to tree pollen, be cautious.
Does slippery elm actually work for cough or constipation?
The evidence we hold doesn't establish that it reliably works for cough, constipation, diarrhea, inflammatory bowel disease, or cancer. It's used traditionally, but high-quality proof of benefit isn't there.
How should I time this with my other medications?
Slippery elm may slow how fast your body absorbs oral drugs. Spacing it at least two hours away from your other medications is a common suggestion — but you must confirm that timing is safe for your specific drugs with your doctor or pharmacist.

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

Not sure if Slippery Elm Bark 440 mg 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.

Slippery Elm Bark 440 mg label
Go deeper

The Full Monographs Behind Slippery Elm Bark 440 mg’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 Bark 440 mg'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

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team