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Dietary supplement

Marshmallow Root Ingredients & Drug Interactions

by Nutricost

Marshmallow Root 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 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 Nutricost 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 Root 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 Marshmallow Root by Nutricost

Ask about any prescription or over-the-counter medication and we check it for interactions with Marshmallow Root by Nutricost — 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 Nutricost

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

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: marshmallow root extract. Marshmallow root has a long history in herbal medicine, traditionally used for throat and digestive comfort.

The inactive ingredients are hypromellose (a capsule material) and olive oil.

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 works reliably for any of the conditions it's traditionally used for — including vaginal yeast infections, diarrhea, leg ulcers, eczema, or respiratory infections. In each case, the research is too limited or inconclusive to say whether it's truly effective.

If you're considering it for a specific concern, talk with your doctor or pharmacist about whether the evidence supports its use for you.

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 a lot about long-term effects. Pregnancy and breastfeeding are situations where there isn't enough reliable information — the safety data advises against use in both cases.

If you're pregnant, planning pregnancy, or breastfeeding, talk with your doctor or pharmacist before taking this product.

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.

Check with your doctor or pharmacist before taking this product if you take lithium — the dose may need to be adjusted. Also double-check any blood thinners or antiplatelet drugs you're on.

Finally, if you take other oral medications, space them 30–60 minutes apart from this supplement to avoid absorption problems.

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 some safety-information gaps remain.

Nutricost Marshmallow Root is a single-ingredient supplement whose effectiveness isn't well established in the data we hold. The main caution is with lithium — if you take it, your dose may need adjustment.

Before starting, check with your doctor or pharmacist about your full medication list, especially if you take lithium, blood thinners, or other oral medications.

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 Feb 22, 2024.

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 Nutricost
Barcode (UPC) 810014671413
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Feb 22, 2024
DSLD ID 306351
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (18 - 50 Years), Gluten 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 Nutricost, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
120
UPC/BARCODE
810014671413
IngredientAmount% DV
Marshmallow Root Extract500 mg--

Other ingredients: Hypromellose, Olive Oil

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

Suggested use: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.

Formulation

Third party tested

Non-GMO Gluten-free

Made and quality tested in the USA with globally sourced ingredients.

Vegetarian product

Non-GMO product

Precautions

Warning: For healthy individuals 18 years and older.

Consult a healthcare professional prior to use if you are pregnant or nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Do not use if safety seal is broken or missing.

Storage

Notice: Store in a cool, dry place.

Formula

Marshmallow Root 5,000 mg equivalent per serving

FDA Statement of Identity

Dietary Supplement

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

Nutricost Quality Guaranteed Vegetarian Product GMP Compliant Facility

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

See for yourself

Marshmallow Root by Nutricost 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 Nutricost

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container120 Amounts shown are per serving.

Marshmallow Root Extract

Interacts with
2,040 drugs
500 mg per serving

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,...

Marshmallow Root Extract monograph & interactions

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

Interaction report

Marshmallow Root by Nutricost 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 Root Extract 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 Root Extract

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.

Marshmallow Root Extract3 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 Root Extract full monograph & interactions
The maker

Brand information

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

Nutricost

See all Nutricost products
Name
Nutricost
Street Address
351 E 1750 N
City
Vineyard
State
UT
ZipCode
84059
Phone Number
(866) 438-3694
Web Address
www.nutricost.com
Pharmacist Counseling Corner

Marshmallow Root by Nutricost: Common Questions

Does Marshmallow Root by Nutricost 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.
Can I take Nutricost Marshmallow Root if I'm pregnant or breastfeeding?
The safety data advises against it during both pregnancy and breastfeeding because there isn't enough reliable information. Talk with your doctor or pharmacist for personalized advice before taking it.
Does marshmallow root actually work for coughs, sore throat, or digestive issues?
The evidence we hold doesn't establish that it reliably works for those uses or any other condition — the research is too limited or inconclusive. If you're considering it for a specific health concern, talk with your doctor about whether it makes sense for you.
What are the side effects?
We have no adverse effects documented in our data for marshmallow root, though human safety data are limited overall. If you experience unusual symptoms after taking it, contact your pharmacist or doctor.
How should I take this with other medications?
If you take any oral medications by mouth, take marshmallow root 30–60 minutes after them — the mucilage in the root can interfere with how your body absorbs other pills. If you take lithium, you'll need to talk with your doctor about dose adjustment. Check the medication checker on this page for your specific drugs.
What is marshmallow root and why is it in supplements?
Marshmallow root is an extract from the marshmallow plant, traditionally used in herbal medicine for throat and digestive comfort. It contains mucilage, a sticky substance that has been used in folk remedies, though modern evidence for its effectiveness is limited.

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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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.

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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