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

Calendula Ingredients & Drug Interactions

by Pure Herbs

Calendula label
See full label image
Liquid Category: Botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Calendula 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: Minor

Calendula is a dietary supplement by Pure Herbs with 1 active ingredient. Its ingredients are commonly taken for minor wounds and skin healing, skin inflammation and irritation, diaper rash.Based on those ingredients, 248 medications have a known interaction with it, the most serious rated minor. The ingredients most likely to interact are Calendula flower 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 Calendula by Pure Herbs

Ask about any prescription or over-the-counter medication and we check it for interactions with Calendula by Pure Herbs — 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 Calendula by Pure Herbs

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 liquid contains one active ingredient: calendula flower extract. Calendula is a plant used in traditional remedies for skin and internal health, though solid evidence for most uses is still developing.

The product has no other inactive ingredients listed.

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 Calendula's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: maintain healthy circulation, digestion, and skin health.
  • We looked for evidence on: Diaper rash, Wound healing, Oral mucositis, Gingivitis, Hemorrhoids, Pressure ulcers — and 4 related terms.
  • The closest evidence on file: Calendula is rated "Insufficient Reliable Evidence To Rate" for Burns (Natural Medicines).
  • Also on file: Calendula is rated "Insufficient Reliable Evidence To Rate" for Radiation dermatitis, Diaper rash, Gingivitis, Hemorrhoids, and more.

The evidence we hold doesn't establish effectiveness for calendula in acne, bacterial vaginosis, burns, chronic obstructive pulmonary disease (COPD), liver disease, or radiation dermatitis. For all these uses, the data on file rates the evidence as insufficient.

That doesn't mean calendula doesn't work — it means the research so far hasn't been strong or complete enough to say either way.

The evidence, ingredient by ingredient Calendula

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.

On the skin, calendula is generally well tolerated, but allergic reactions can happen in sensitive people. Orally (by mouth), calendula can trigger allergic reactions.

Some people — especially those sensitive to ragweed, chrysanthemums, marigolds, daisies, or other plants in the Asteraceae/Compositae family — may be at higher risk. Rarely, topical use has caused burning, itching, redness, or scaling.

A patch test with calendula before regular use is recommended if you have a history of allergies. During pregnancy, there isn't enough safety data to support taking calendula by mouth, so it's best avoided unless your doctor says otherwise.

No breastfeeding or lactation data is on file for this ingredient.

Side effects, ingredient by ingredient Calendula

Meds to double-check

Minor interactions only
Known Interaction Concern · database check
Minor only

Only Minor-severity interactions are documented for these ingredients.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Calendula.
  • The most serious interaction on file is rated Minor.
  • For scale: 248 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, check any CNS depressants (sedatives, sleep aids, or other drugs that slow brain activity) you're on. The interaction is Minor and appears unlikely, but it's worth confirming with your pharmacist.

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. Only minor medication interactions are documented, and safety information is well characterized.

Calendula is a traditional remedy with a long history of use, but modern research on what it actually does is still limited. If you're interested in it for a specific condition, talk with your pharmacist first — especially if you take sedatives or sleep aids, or if you have allergies to ragweed or related plants.

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 Dec 13, 2022.

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 Calendula, straight from the product label.

Brand Pure Herbs
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 278756
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Calendula by Pure Herbs, 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 mL
Maximum serving Sizes:
2 mL
Servings per container
15
IngredientAmount% DV
Calendula flower extract1966 mg--

Other ingredients: None

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: For adults, mix 2 mL (abt. 1/2 tsp) of extract in 2 fl. oz (60 mL) water one time daily preferably with a meal.

Shake well before use

Formulation

Beneficial to maintain healthy circulation and digestion. Assists in supporting the overall health of your skin.

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 any disease.

Precautions

Warning: Not intended for use by pregnant or nursing women. If you have a medical condition or are taking medication, consult your doctor prior to use.

Discontinue use and consult with your doctor if any adverse reactions occur.

Keep out of reach of children

Brand IP Statement(s)

Pure Herbs, Ltd. Natural Herbal Extracts

FDA Statement of Identity

Dietary Supplement

General Statements

"No expense has been spared to provide the finest nature has to offer."

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

See for yourself

Calendula by Pure Herbs label

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

Calendula 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 Calendula by Pure Herbs

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

Serving size2 mL Dosage formLiquid Servings per container15 Amounts shown are per serving.

Calendula flower extract

Interacts with
248 drugs
1966 mg per serving

Calendula is a flowering plant whose petals are used mainly in skin creams, oils, and ointments to soothe minor irritation and support wound healing....

Calendula flower extract monograph & interactions

Other (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

Calendula by Pure Herbs Drug Interactions

Want to check YOUR meds against Calendula?

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
248Drugs
248 Minor

Ingredients driving the most interactions

Calendula flower extract 248

Individual Drug Interactions

The ingredients in Calendula interact with 248 drugs. Click any drug to see the details.

1 of the 1 ingredient in Calendula interact with drugs. Each result below shows which ingredient is responsible. Calendula flower extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Calendula 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.

Calendula flower extract1 drug type · 248 drugs

Cns Depressants

Theoretically, calendula might have additive effects when used with CNS depressants, although this appears to be unlikely.
Although some animal research has suggested that a saponoside constituent in calendula may have sedative effects, calendula has been used for over 30 years without reports of sedation in humans.

Likelihood Unlikely Evidence D
Calendula flower extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Calendula, from the product label.

Pure Herbs

See all Pure Herbs products
Name
Pure Herbs, Ltd.
City
Sterling Heights
State
MI
Phone Number
(800) 860-4372
Web Address
www.pureherbs.com
Pharmacist Counseling Corner

Calendula by Pure Herbs: Common Questions

Does Calendula by Pure Herbs interact with any medications?
Yes. Based on its ingredients, Calendula has a known interaction with 248 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Calendula 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 use this if I'm pregnant?
The safety data isn't strong enough to support taking calendula by mouth during pregnancy, so it's best avoided unless your doctor approves. Talk with your doctor or pharmacist about whether it's right for you.
Will this help my acne, burns, or [specific condition]?
We don't have reliable evidence that calendula works for acne, burns, COPD, liver disease, radiation dermatitis, or bacterial vaginosis. That doesn't mean it can't — just that the research so far hasn't been conclusive enough to say it does. If you're considering it for a specific reason, ask your pharmacist what the current evidence suggests.
Can I use this if I have allergies?
If you're allergic to ragweed, chrysanthemums, marigolds, daisies, or other plants in the same family, you may react to calendula. A patch test with the product before regular use is a good idea if you have a history of plant allergies.
What should I watch for when using this topically?
Allergic reactions and eczematous reactions are possible. Rarely, burning, itching, redness, or scaling have occurred. If any of these develop, stop use and talk with your pharmacist.
Is this safe to take by mouth?
Calendula can cause allergic reactions when taken orally. There's also a lack of safety data on long-term oral use in general, so it's best to avoid taking it by mouth unless your doctor approves.

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

Not sure if Calendula 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.

Calendula label
Go deeper

The Full Monographs Behind Calendula’s Ingredients

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

Herb & supplement monograph

Calendula

Interacts with 248 drugs

Calendula is a flowering plant whose petals are used mainly in skin creams, oils, and ointments to soothe minor irritation and support wound healing. Some early research is promising for ski...

Read the full Calendula monograph →
Sources

Sources & How We Checked

Calendula'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 9 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.

Calendula 9 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Reider N, Komericki P, Hausen BM, et al. The seamy side of natural medicines: contact sensitization to arnica (Arnica montana L.) and marigold (Calendula officinalis L.). Contact Dermatitis 2001;45:269-72..
  3. Gol'dman II. [Anaphylactic shock after gargling with an infusion of Calendula]. Klin Med (Mosk) 1974;52:142-3.
  4. Paulsen E. Contact sensitization from Compositae-containing herbal remedies and cosmetics. Contact Dermatitis 2002;47:189-98. PubMed
  5. Bojadjiev C. On the sedative and hypotensive effect of preparations from the plant Calendula officinalis. Nauch Trud Visshi Med Inst Sof 1964;43:15-20.
  6. Samochowiec L. Pharmacological study of saponosides from Aralia mandshurica Rupr. et Maxim and Calendula officinalis L. Herba Pol. 1983;29:151-155.
  7. Madisetti M, Kelechi TJ, Mueller M, Amella EJ, Prentice MA. Feasibility, acceptability, and tolerability of RGN107 in the palliative wound care management of chronic wound symptoms. J Wound Care. 2017;26(Sup1):S25-S34. PubMed
  8. Final Assessment report on Calendula officinalis L., flos. European Medicines Agency: Committee on Herbal Medicinal Products (HMPC). 2018. EMA/HMPC/603409/2017. Available at: https://www.ema.europa.eu/en/documents/herbal-report/final-assessment-report-cal
  9. Puaratanaarunkon T, Washrawirul C, Chuenboonngarm N, Noppakun N, Asawanonda P, Kumtornrut C. Efficacy and safety of a facial serum containing snail secretion filtrate, Calendula officinalis, and Glycyrrhiza glaba root extract in the treatment of maskne: A

See these in context on the Calendula 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