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Dietary supplement

Roman Chamomile Ingredients & Drug Interactions

by Herbalist & Alchemist

Roman Chamomile label
See full label image
Liquid 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 Roman Chamomile 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

Roman Chamomile is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, sleep and relaxation, digestive upset.Based on those ingredients, 960 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are dried Roman Chamomile flowers 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 Roman Chamomile by Herbalist & Alchemist

Ask about any prescription or over-the-counter medication and we check it for interactions with Roman Chamomile by Herbalist & Alchemist — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Roman Chamomile by Herbalist & Alchemist

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: dried Roman Chamomile flowers extract. Roman Chamomile is traditionally used to promote relaxation and calm, though the evidence supporting most uses remains limited in the data we hold.

The liquid form also includes distilled water and ethyl alcohol 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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: balances muscle spasms.
  • We looked for evidence on: muscle tension, muscle cramps, spasticity.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence we have for Roman Chamomile's effectiveness is insufficient to rate for most traditional uses—including anxiety, ADHD, hay fever, and cancer-related loss of appetite. That means either limited studies exist, the studies were too small or poorly designed, or results were mixed.

If you're considering it for a specific condition, talk with your doctor about whether the available evidence supports it for you.

The evidence, ingredient by ingredient German Chamomile

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.

Roman Chamomile is generally well tolerated by most adults, but allergic reactions are a real concern, especially if you're sensitive to ragweed or related plants. Reactions can range from mild (itching, watery eyes, sneezing) to severe, including anaphylaxis in rare cases.

When applied to skin, it may cause allergic dermatitis or eczema; used as a mouth rinse, it's been reported to cause nausea and burning. There isn't enough reliable safety data to know whether it's safe during pregnancy—the guidance advises against use unless your doctor approves it.

If you're breastfeeding, limited safety data exist, so check with your doctor or pharmacist before taking it.

Side effects, ingredient by ingredient German Chamomile

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 — German Chamomile.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 961 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 Roman Chamomile, double-check with your doctor or pharmacist if you're on warfarin or other blood thinners (Moderate risk of increased bleeding), CNS depressants like sleep aids or anxiety medications (Moderate risk of added drowsiness), medications metabolized by CYP2D6, CYP2C9, or CYP3A4 enzymes (Moderate risk of drug buildup), oral contraceptives or estrogen therapy (Moderate risk of reduced effectiveness), or tamoxifen for cancer (Moderate risk of reduced effectiveness).

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.

Roman Chamomile is generally well tolerated and traditionally used for relaxation, though evidence for most uses is limited. The main caution is for anyone on warfarin, CNS depressants, certain enzyme-metabolized drugs, birth control, hormone replacement, or tamoxifen—all of which warrant a check with your doctor or pharmacist before you start.

People allergic to ragweed should be especially cautious. If you're pregnant or breastfeeding, discuss it with your healthcare provider 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 Jan 7, 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 Roman Chamomile, straight from the product label.

Brand Herbalist & Alchemist
Barcode (UPC) 667056124380
Net contents 2 fl. Oz.; 60 mL
Market status On market
Date entered into DSLD Jan 7, 2019
DSLD ID 180752
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher
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 Roman Chamomile by Herbalist & Alchemist, 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:
2 mL
Servings per container
30
UPC/BARCODE
667056124380
IngredientAmount% DV
dried Roman Chamomile flowers extract2 mL--

Other ingredients: distilled Water, Ethyl Alcohol

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.
Formula

Chamomile nobile

OK

General Statements

Balances muscle spasms

Botanical preparation ratio 1:5

NO. RCH-2 1805TU

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested use: 20-40 drops (1-2 mL) in juice or water. Take 3 times per day. Shake well before using.

Precautions

Contraindications: Do not use during pregnancy unless otherwise directed by a qualified expert.

Keep out of children's reach

FDA Disclaimer Statement

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

Seals/Symbols

OK

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See for yourself

Roman Chamomile by Herbalist & Alchemist label

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

Roman Chamomile 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 Roman Chamomile by Herbalist & Alchemist

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 container30 Amounts shown are per serving.

Dried Roman Chamomile flowers extract

Interacts with
960 drugs
2 mL per serving

German chamomile is a widely used herbal remedy taken mainly as a tea for calming, sleep, and digestive complaints. Early research suggests possible b...

Dried Roman Chamomile flowers extract monograph & interactions

Other (inactive) ingredients: Distilled Water, Ethyl Alcohol. These complete the product’s ingredient list but are not active constituents.

Interaction report

Roman Chamomile by Herbalist & Alchemist Drug Interactions

Want to check YOUR meds against Roman Chamomile?

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
960Drugs
925 Moderate 35 Minor

Ingredients driving the most interactions

dried Roman Chamomile flowers extract 960

Individual Drug Interactions

The ingredients in Roman Chamomile interact with 960 drugs. Click any drug to see the details.

1 of the 1 ingredient in Roman Chamomile interact with drugs. Each result below shows which ingredient is responsible. dried Roman Chamomile flowers extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Roman Chamomile 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.

dried Roman Chamomile flowers extract9 drug types · 960 drugs

Cns Depressants

Theoretically, German chamomile might have additive effects when used with CNS depressants.
German chamomile has mild sedative effects. Theoretically, concomitant use with drugs with sedative properties can cause additive effects and side effects.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, large amounts of German chamomile might reduce the effectiveness of oral contraceptives.
In vitro, German chamomile has demonstrated antiestrogenic activity. Theoretically, concomitant use of large amounts of German chamomile might interfere with contraceptive drugs through competition for estrogen receptors.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, German chamomile might inhibit CYP2C9 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP2C9. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP2C9 in patients taking German chamomile.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP2D6. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP2D6 in patients taking German chamomile.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
In vitro evidence shows that German chamomile might inhibit CYP3A4. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP3A4 in patients taking German chamomile.

Likelihood Possible Evidence D
Estrogens

Theoretically, large amounts of German chamomile might reduce the effectiveness of estrogens.
In vitro, German chamomile has demonstrated antiestrogenic activity. Theoretically, large amounts of German chamomile might interfere with hormone replacement therapy through competition for estrogen receptors.

Likelihood Possible Evidence D
Tamoxifen (Nolvadex)

Theoretically, large amounts of German chamomile might interfere with the activity of tamoxifen.
In vitro, German chamomile has demonstrated antiestrogenic activity.

Likelihood Possible Evidence D
Warfarin (Coumadin)

German chamomile might increase the effects of warfarin and increase the risk of bleeding.
In one case, a 70-year-old female taking warfarin developed retroperitoneal hematoma and bilateral recti muscle bleeding along with an INR of 7.9 following ingestion of German chamomile tea 4-5 cups daily and use of a topical chamomile-based lotion applied 4-5 times daily.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
In vitro and animal research shows that German chamomile might inhibit CYP1A2. So far, this interaction has not been reported in humans. However, there might be an increase in the levels of drugs metabolized by CYP1A2 in patients taking German chamomile.

Likelihood Possible Evidence D
dried Roman Chamomile flowers extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Roman Chamomile, from the product label.

Herbalist & Alchemist

See all Herbalist & Alchemist products
Name
Herbalist & Alchemist, Inc.
City
Washington
State
NJ
ZipCode
07882
Phone Number
800-611-8235
Web Address
www.herbalist-alchemist.com
Pharmacist Counseling Corner

Roman Chamomile by Herbalist & Alchemist: Common Questions

Does Roman Chamomile by Herbalist & Alchemist interact with any medications?
Yes. Based on its ingredients, Roman Chamomile has a known interaction with 960 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Roman Chamomile 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 Roman Chamomile if I'm pregnant?
There isn't enough reliable safety information to recommend it during pregnancy. The guidance advises against use unless your doctor has approved it specifically for you. Talk with your doctor before taking it.
Is Roman Chamomile safe if I'm breastfeeding?
Limited safety data exist for breastfeeding. Check with your doctor or pharmacist before using it while nursing—they can help you decide based on your individual situation.
Can it cause allergic reactions?
Yes. If you're sensitive to ragweed or related plants, you may have an allergic reaction ranging from itching and watery eyes to severe reactions like anaphylaxis. Stop and seek medical help if you experience difficulty breathing, swelling, or severe symptoms.
What is Roman Chamomile traditionally used for?
It's traditionally used to promote relaxation and calm. However, the scientific evidence supporting most of these uses is insufficient in the data we hold, so talk with your doctor about what it may or may not do for your needs.
Does it cause drowsiness?
Roman Chamomile has mild sedative effects. If you take it with other sedating medications—like sleep aids or anxiety drugs—it may add to the drowsiness, so mention this to your doctor or pharmacist.

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

Not sure if Roman Chamomile 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.

Roman Chamomile label
Go deeper

The Full Monographs Behind Roman Chamomile’s Ingredients

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

Herb & supplement monograph

German Chamomile

Interacts with 960 drugs

German chamomile is a widely used herbal remedy taken mainly as a tea for calming, sleep, and digestive complaints. Early research suggests possible benefits for mild anxiety and some skin o...

Read the full German Chamomile monograph →
Sources

Sources & How We Checked

Roman Chamomile'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 15 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.

German Chamomile 15 references
  1. Subiza J, Subiza JL, Hinojosa M, et al. Anaphylactic reaction after the ingestion of chamomile tea; a study of cross-reactivity with other composite pollens. J Allergy Clin Immunol 1989;84:353-8. PubMed
  2. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  3. Viola H, Wasowski C, Levi de Stein M, et al. Apigenin, a component of Matricaria recutita flowers, is a central benzodiazepine receptors-ligand with anxiolytic effects. Planta Med 1995;61:213-6.
  4. van Ketel WG. Allergy to Matricaria chamomilla. Contact Dermatitis 1982;8:143. PubMed
  5. van Ketel WG. Allergy to Matricaria chamomilla. Contact Dermatitis 1987;16:50-1. PubMed
  6. Hormann HP, Korting HC. Evidence for the efficacy and safety of topical herbal drugs in dermatology: part I: anti-inflammatory agents. Phytomedicine 1994;1:161-71. PubMed
  7. Avallone R, Zanoli P, Puia G, et al. Pharmacological profile of apigenin, a flavonoid isolated from Matricaria chamomilla. Biochem Pharmacol 2000;59:1387-94. PubMed
  8. Kassi E, Papoutsi Z, Fokialakis N, et al. Greek plant extracts exhibit selective estrogen receptor modulator (SERM)-like properties. J Agric Food Chem 2004;52:6956-61. PubMed
  9. Maliakal PP, Wanwimolruk S. Effect of herbal teas on hepatic drug metabolizing enzymes in rats. J Pharm Pharmacol 2001;53:1323-9. PubMed
  10. Segal R, Pilote L. Warfarin interaction with Matricaria chamomilla. CMAJ 2006;174:1281-2. PubMed
  11. Loggia RD, Traversa U, Scarcia V, et al. Depressive effects of Chamomilla recutita (L.) Rausch, tubular flowers, on central nervous system in mice. Pharmacol Res Commun 1982;14(2):153-162. PubMed
  12. Ganzera M, Schneider P, Stuppner H. Inhibitory effects of the essential oil of chamomile (Matricaria recutita L.) and its major constituents on human cytochrome P450 enzymes. Life Sci 2006;78(8):856-861. PubMed
  13. Benito P, Rodríguez-Perez R, García F, Juste S, Moneo I, Caballero ML. Occupational allergic rhinoconjunctivitis induced by Matricaria chamomilla with tolerance of chamomile tea. J Investig Allergol Clin Immunol. 2014;24(5):369-70. No abstract available.
  14. Braga FT, Santos AC, Bueno PC, et al. Use of Chamomilla recutita in the prevention and treatment of oral mucositis in patients undergoing hematopoietic stem cell transplantation: a randomized, controlled, phase II clinical trial. Cancer Nurs 2015;38(4):32 PubMed
  15. Sarris J, Ravindran A, Yatham LN, et al. Clinician guidelines for the treatment of psychiatric disorders with nutraceuticals and phytoceuticals: The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety T

See these in context on the German Chamomile 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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