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Dietary supplement

Marshmallow Root Ingredients & Drug Interactions

by Cedar Bear

Marshmallow Root 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 Marshmallow Root 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

Marshmallow Root is a dietary supplement by Cedar Bear with 1 active ingredient. Its ingredients are commonly taken for cough and sore throat, dry mouth and throat irritation, digestive upset and heartburn.Based on those ingredients, 2,040 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Marshmallow. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Marshmallow Root by Cedar Bear

Ask about any prescription or over-the-counter medication and we check it for interactions with Marshmallow Root by Cedar Bear — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Marshmallow Root by Cedar Bear

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 Aug 20, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (0.50 mL) without saying how much of each component you get.

This product contains one active ingredient: marshmallow root in a proprietary blend. Marshmallow has been used traditionally to soothe inflamed tissues, particularly in the respiratory tract and digestive system.

The liquid form includes vegetable glycerin and purified water as inactive ingredients.

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 Marshmallow product and its label doesn't state a use — see Marshmallow'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 marshmallow root is effective for the conditions it's commonly used for — including sore throat, cough, diarrhea, eczema, or vaginal yeast infections. All of these are rated as having insufficient reliable evidence.

That doesn't mean it doesn't work; it means rigorous human studies haven't confirmed it one way or the other.

The evidence, ingredient by ingredient Marshmallow

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 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.

Marshmallow root is generally well tolerated for short-term use, but human safety data are limited — so we don't know much about long-term safety. There isn't enough reliable safety information to recommend it during pregnancy or while breastfeeding.

If you're pregnant, nursing, or planning to be, talk with your doctor or pharmacist about whether this product is right for you. No adverse effects are documented in the data we hold.

Side effects, ingredient by ingredient Marshmallow

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 — Marshmallow.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; lithium.
  • For scale: 2,041 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 this product, double-check with your doctor or pharmacist if you take lithium — the interaction is Moderate in severity. You should also confirm use if you're on blood thinners or antiplatelet drugs like warfarin or aspirin, and mention any oral medications you take regularly, since marshmallow may affect how your body absorbs them.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.

Marshmallow root is a traditional herbal remedy, but we don't yet have solid evidence it works for common uses. More importantly, if you take lithium, blood thinners, or other oral medications, this product warrants a conversation with your doctor or pharmacist before you start.

Limited human safety data and gaps during pregnancy and breastfeeding also mean it's worth clearing 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 21, 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 Marshmallow Root, straight from the product label.

Brand Cedar Bear
Barcode (UPC) 834711003964
Net contents 60 mL; 2 fl. Oz.
Market status On market
Date entered into DSLD Nov 21, 2020
DSLD ID 239293
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, 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 Marshmallow Root by Cedar Bear, 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:
0.5 mL
Maximum serving Sizes:
0.5 mL
Servings per container
120
UPC/BARCODE
834711003964
IngredientAmount% DV
Proprietary Blend0.5 mL--
Marshmallow0 NP--

Other ingredients: USP Grade Vegetable Glycerin, purified Water

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

Manufactured in the USA

True Alcohol Free Sugar Free Gluten Free

Vegan

Suggested/Recommended/Usage/Directions

Suggested Use: .5 mL (10 drops) 1 to 3 times a day, or as needed. Shake well.

Precautions

Note: Consult your physician before use.

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.

Seals/Symbols

GMP Good Manufacturing Practices K (Kosher)

Formula

K (Kosher)

Althaea officinalis

General Statements

Herbal Single

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Marshmallow Root by Cedar Bear label

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

Marshmallow Root 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 Marshmallow Root by Cedar Bear

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

Serving size0.5 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Proprietary Blend

0.5 mL per serving

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

Interaction report

Marshmallow Root by Cedar Bear Drug Interactions

Want to check YOUR meds against Marshmallow Root?

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
2,040Drugs
1 Moderate 2,039 Minor

Ingredients driving the most interactions

Marshmallow 2,040

Individual Drug Interactions

The ingredients in Marshmallow Root interact with 2,040 drugs. Click any drug to see the details.

1 of the 1 ingredient in Marshmallow Root interact with drugs. Each result below shows which ingredient is responsible. Marshmallow

Each ingredient & the kinds of drugs it affects

For each ingredient in Marshmallow Root 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.

Marshmallow3 drug types · 2,040 drugs

Lithium

Theoretically, due to potential diuretic effects, marshmallow might reduce excretion and increase levels of lithium.
Marshmallow is thought to have diuretic properties. To avoid lithium toxicity, the dose of lithium might need to be decreased when used with marshmallow.

Likelihood Probable Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, marshmallow flower might have antiplatelet effects.
Animal research suggests that marshmallow flower extract has antiplatelet effects. However, the root and leaf of marshmallow, not the flower, are the plant parts most commonly found in dietary supplements. Theoretically, use of marshmallow flower with anticoagulant/antiplatelet drugs can have additive effects, and might increase the risk for bleeding in some patients.

Likelihood Unlikely Evidence D
Oral Drugs

Theoretically, mucilage in marshmallow might impair absorption of oral drugs.
Marshmallow contains mucilage which can affect oral drug absorption. To avoid changes in absorption, take marshmallow 30-60 minutes after oral medications.

Likelihood Possible Evidence D
Marshmallow full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Marshmallow Root, from the product label.

Cedar Bear

See all Cedar Bear products
Name
Cedar Bear Naturales INC
Street Address
PO Box 158
City
Roosevelt
State
UT
ZipCode
84066
Phone Number
1-888-854-3727
Web Address
Cedarbear.com
Pharmacist Counseling Corner

Marshmallow Root by Cedar Bear: Common Questions

Does Marshmallow Root by Cedar Bear interact with any medications?
Yes. Based on its ingredients, Marshmallow Root has a known interaction with 2,040 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Marshmallow Root 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 marshmallow root safe to take while I'm pregnant or breastfeeding?
There isn't enough reliable safety information to know either way. Because of that gap, the data advises against use in pregnancy and while breastfeeding. Talk with your doctor or pharmacist about your specific situation — they can help you weigh the risks and benefits together.
How should I take this if I'm also on other medications?
Marshmallow's mucilage can slow how your body absorbs oral drugs. Space it out: take this product at least 30 to 60 minutes after you take your other medications. And always run your full medication list through the search tool on this page or check with your pharmacist before you start.
Does marshmallow root actually work for a sore throat or cough?
The evidence we hold doesn't establish that it does. All the common uses — sore throat, cough, diarrhea, eczema, and others — are rated as having insufficient reliable evidence. That means rigorous human studies haven't confirmed it yet, not that it's been proven ineffective.
Are there any side effects I should watch for?
No adverse effects are documented in the data we hold. That said, human safety data for marshmallow root are limited overall, so we don't know everything about long-term use. If anything unusual happens after you start, report it to your pharmacist or doctor.
Can I take this with my blood thinner?
There's a Minor-level interaction concern. Animal research suggests marshmallow flower has antiplatelet effects, though the root in this product is less commonly studied for that. Still, check with your doctor or pharmacist before combining it with warfarin, aspirin, or other blood thinners.

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

Not sure if Marshmallow Root 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.

Marshmallow Root label
Go deeper

The Full Monographs Behind Marshmallow Root’s Ingredients

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

Herb & supplement monograph

Marshmallow

Interacts with 2,040 drugs

Marshmallow root is a traditional herb rich in soothing, gel-like fibers called mucilage, which is why it has long been used for coughs, sore throats, and stomach irritation. Evidence for th...

Read the full Marshmallow monograph →
Sources

Sources & How We Checked

Marshmallow Root'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 5 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.

Marshmallow 5 references
  1. Monographs on the medicinal uses of plant drugs. Exeter, UK: European Scientific Co-op Phytother, 1997.
  2. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  5. Hage-Sleiman R, Mroueh M, Daher CF. Pharmacological evaluation of aqueous extract of Althaea officinalis flower grown in Lebanon. Pharm Biol 2011;49(3):327-33.

See these in context on the Marshmallow 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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