Chamomile Ingredients & Drug Interactions
What is this page for?
First and foremost: checking 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
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 Chamomile Flower Extract, Dried. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Chamomile by Herbalist & Alchemist
Ask about any prescription or over-the-counter medication and we check it for interactions with Chamomile by Herbalist & Alchemist — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Chamomile by Herbalist & Alchemist
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
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.
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.
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.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2025.
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
General information
Key facts about Chamomile, straight from the product label.
| Brand | Herbalist & Alchemist |
|---|---|
| Barcode (UPC) | 667056105846 |
| Net contents | 2 Fluid Ounce(s); 60 mL |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2025 |
| DSLD ID | 340184 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Kosher |
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 Chamomile by Herbalist & Alchemist, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Chamomile Flower Extract, Dried | 5 mL | -- |
Other ingredients: Ethyl Alcohol, distilled Water
Tap any ingredient to jump to its full detail below.
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
Matricaria recutita
OK (Kosher)
Formulation
Promotes restful sleep and relaxes digestive tract
Botanical preparation ratio 1:4
FDA Statement of Identity
Herbal Supplement
Suggested/Recommended/Usage/Directions
Suggested Use: 60 - 100 drops (3 - 5 mL) in juice or water. Take 3 times per day. Shake well before using.
Precautions
Contraindications: Do not use if you have severe ragweed allergies.
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 (Kosher) Certified B Corporations
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Chamomile by Herbalist & Alchemist label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Chamomile by Herbalist & Alchemist
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size3 mL Dosage formLiquid Servings per container12 Amounts shown are per serving.
Chamomile Flower Extract, Dried
Interacts with960 drugs
German chamomile is a widely used herbal remedy taken mainly as a tea for calming, sleep, and digestive complaints. Early research suggests possible b...
Chamomile Flower Extract, Dried monograph & interactionsOther (inactive) ingredients: Ethyl Alcohol, Distilled Water. These complete the product’s ingredient list but are not active constituents.
Chamomile by Herbalist & Alchemist Drug Interactions
Chamomile contains a single active ingredient, and it has known interactions with 960 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against 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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Chamomile interact with 960 drugs. Click any drug to see the details.
1 of the 1 ingredient in Chamomile interact with drugs. Each result below shows which ingredient is responsible. Chamomile Flower Extract, Dried
ApremilastOtezla
How Apremilast interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Apremilast interactionAprepitantCinvanti, Emend
How Aprepitant interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aprepitant interactionAprobarbital, Butabarbital, PhenobarbitalTriple Barbital
How Aprobarbital, Butabarbital, Phenobarbital interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aprobarbital, Butabarbital, Phenobarbital interactionAripiprazoleAbilify, Abilify Maintena, Abilify Mycite
How Aripiprazole interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aripiprazole interactionAripiprazole LauroxilAristada, Aristada Initio Kit
How Aripiprazole Lauroxil interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates +1 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aripiprazole Lauroxil interactionArmodafinilNuvigil
How Armodafinil interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Armodafinil interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionAspirin, Butalbital, CaffeineFiorinal
How Aspirin, Butalbital, Caffeine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Butalbital, Caffeine interactionAspirin, Butalbital, Caffeine, Codeine PhosphateFiorinal w/ Codeine
How Aspirin, Butalbital, Caffeine, Codeine Phosphate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Butalbital, Caffeine, Codeine Phosphate interactionAspirin, Butalbital, Caffeine, PhenacetinMarnal
How Aspirin, Butalbital, Caffeine, Phenacetin interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Butalbital, Caffeine, Phenacetin interactionAspirin, CaffeineAnacin
How Aspirin, Caffeine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine interactionAspirin, Caffeine, Codeine PhosphateAnacin w/ Codeine
How Aspirin, Caffeine, Codeine Phosphate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants +2 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Codeine Phosphate interactionAspirin, Caffeine, Dihydrocodeine BitartrateSynalgos DC
How Aspirin, Caffeine, Dihydrocodeine Bitartrate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates +2 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Dihydrocodeine Bitartrate interactionAspirin, Caffeine, Dover's PwdAcedoval, Dovacet
How Aspirin, Caffeine, Dover's Pwd interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Dover's Pwd interactionAspirin, Caffeine, HydrocodoneDamason-P
How Aspirin, Caffeine, Hydrocodone interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 2d6 (cyp2d6) Substrates +2 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Hydrocodone interactionAspirin, Caffeine, Isobutylallylbarbituric Acid, PhenacetinLanorinal
How Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interactionAspirin, Caffeine, OrphenadrineInvagesic, Invagesic Forte, Norgesic, Norgesic Forte, Orphengesic, Orphengesic Forte
How Aspirin, Caffeine, Orphenadrine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Orphenadrine interactionAspirin, Caffeine, Phenacetin, PropoxypheneMargesic Comp. 65
How Aspirin, Caffeine, Phenacetin, Propoxyphene interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 1a2 (cyp1a2) Substrates, Cns Depressants +2 Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP1A2 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Caffeine, Phenacetin, Propoxyphene interactionAspirin, Carisoprodol, Codeine PhosphateSoma Compound w/ Codeine
How Aspirin, Carisoprodol, Codeine Phosphate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Carisoprodol, Codeine Phosphate interactionAspirin, Chlorpheniramine, PhenylpropanolamineAlka-Seltzer Plus Cold
How Aspirin, Chlorpheniramine, Phenylpropanolamine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionAspirin, Codeine PhosphateAspirin w/ Codeine
How Aspirin, Codeine Phosphate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Codeine Phosphate interactionAspirin, Codeine Phosphate, MethocarbamolRobaxisal C
How Aspirin, Codeine Phosphate, Methocarbamol interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants, Cytochrome P450 2d6 (cyp2d6) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aspirin, Codeine Phosphate, Methocarbamol interactionAspirin, Codeine Phosphate, PhenobarbitalPhenaphen
How Aspirin, Codeine Phosphate, Phenobarbital interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Codeine Phosphate, Phenobarbital interactionAspirin, Diphenhydramine, PhenylpropanolamineAlka Seltzer Plus Night Time Effervescent
How Aspirin, Diphenhydramine, Phenylpropanolamine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aspirin, Diphenhydramine, Phenylpropanolamine interactionAspirin, Ethoheptazine, MeprobamateEquagesic
How Aspirin, Ethoheptazine, Meprobamate interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aspirin, Ethoheptazine, Meprobamate interactionAspirin, HydrocodoneAlor 5 500, Lortab ASA
How Aspirin, Hydrocodone interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants, Cytochrome P450 2d6 (cyp2d6) Substrates +1 Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aspirin, Hydrocodone interactionAspirin, OmeprazoleYosprala
How Aspirin, Omeprazole interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2c9 (cyp2c9) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2C9 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Omeprazole interactionAspirin, OxycodonePercodan
How Aspirin, Oxycodone interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 2d6 (cyp2d6) Substrates, Cns Depressants Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP2D6 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Aspirin, Oxycodone interactionAspirin, PentazocineTalwin Compound
How Aspirin, Pentazocine interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCns Depressants, Cytochrome P450 1a2 (cyp1a2) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might have additive effects when used with CNS depressants.
Read the full Chamomile Flower Extract, Dried + Aspirin, Pentazocine interactionAtazanavirReyataz
How Atazanavir interacts with Chamomile — through 1 ingredient. Tap an ingredient for the detail:
Chamomile Flower Extract, DriedCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, German chamomile might inhibit CYP3A4 and increase levels of drugs metabolized by these enzymes.
Read the full Chamomile Flower Extract, Dried + Atazanavir interactionEach ingredient & the kinds of drugs it affects
For each ingredient in 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.
Chamomile Flower Extract, Dried
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.
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.
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.
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.
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.
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.
Tamoxifen (Nolvadex)
Theoretically, large amounts of German chamomile might interfere with the activity of tamoxifen.
In vitro, German chamomile has demonstrated antiestrogenic activity.
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.
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.
Brand information
Manufacturer and brand details for 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
Chamomile by Herbalist & Alchemist: Common Questions
Does Chamomile by Herbalist & Alchemist interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Chamomile is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Chamomile’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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
- 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
- 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
- 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.
- van Ketel WG. Allergy to Matricaria chamomilla. Contact Dermatitis 1982;8:143. PubMed
- van Ketel WG. Allergy to Matricaria chamomilla. Contact Dermatitis 1987;16:50-1. PubMed
- 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
- 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
- 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
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