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Dietary supplement

Thyme Ingredients & Drug Interactions

by Herbalist & Alchemist

Thyme label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Thyme 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

Thyme is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for cough and respiratory congestion, sore throat, digestive upset.Based on those ingredients, 379 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are dried Thyme herb 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 Thyme by Herbalist & Alchemist

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

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HelloPharmacist Scorecard of Thyme 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 17, 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 thyme herb extract. Thyme is a culinary and medicinal herb traditionally used to support respiratory and digestive health, though the evidence for specific health claims is still being established.

The liquid formulation also includes ethyl alcohol and distilled water as inactive ingredients to deliver the extract.

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 Thyme's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: supports healthy respiratory function.
  • We looked for evidence on: Bronchitis, Common cold, Cough, Laryngitis, Tonsillitis, Respiratory congestion — and 1 related terms.
  • The closest evidence on file: Thyme is rated "Insufficient Reliable Evidence To Rate" for Bronchitis (Natural Medicines).
  • Also on file: Thyme is rated "Insufficient Reliable Evidence To Rate" for Common cold, Cough, Tonsillitis, Laryngitis.

The evidence we hold does not establish reliable effectiveness for thyme in treating bronchitis, common cold, aging skin, or alopecia areata. The ratings for these uses are insufficient — meaning the studies either don't exist, are too small, or don't clearly show it works.

If you're considering thyme for one of these purposes, talk with your doctor or pharmacist about what the current research supports for your situation.

The evidence, ingredient by ingredient Thyme

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.

Thyme is generally well tolerated when eaten as food or brewed as tea. When used as a medicinal extract like this one, it seems well tolerated overall, though a small number of people report allergic reactions, headache, dizziness, nausea, vomiting, heartburn, or diarrhea when taken by mouth.

Topical use can cause contact dermatitis or skin irritation in some people. The concentrated essential oil — not this extract specifically — can be toxic if swallowed, so always follow the product's dosing instructions.

Because safety data for medicinal doses is limited, use caution and talk with your doctor if you're pregnant, nursing, or considering this for a medical condition.

Side effects, ingredient by ingredient Thyme

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 — Thyme.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 379 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.

Double-check your medications before starting, especially if you take blood thinners or antiplatelet drugs (like aspirin or warfarin), estrogen or hormone-based birth control, anticholinergic drugs (overactive bladder or Parkinson's medications), or cholinergic drugs (myasthenia gravis or low blood pressure treatments). All four interactions are Moderate severity based on lab findings, even though they haven't been confirmed in humans.

Use the medication checker on this page with your exact prescriptions.

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. Moderate medication interactions have been identified, and safety information is well characterized.

Thyme extract may appeal to you if you're interested in traditional herbal support for cough or digestion, but the evidence for specific benefits isn't yet established. If you take blood thinners, hormone therapy, or medications for bladder or nerve conditions, check with your doctor or pharmacist first — this extract may interact with those drugs.

It's generally well tolerated, but allergic reactions and digestive upset happen in some people.

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 Jun 25, 2018.

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 Thyme, straight from the product label.

Brand Herbalist & Alchemist
Barcode (UPC) 667056127626
Net contents 2 fl. Oz.; 60 mL
Market status On market
Date entered into DSLD Jun 25, 2018
DSLD ID 174813
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher, Organic
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 Thyme 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:
2 mL
Maximum serving Sizes:
3 mL
Servings per container
20
UPC/BARCODE
667056127626
IngredientAmount% DV
dried Thyme herb extract3 mL--

Other ingredients: Ethyl Alcohol, distilled 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.
Formula

Thymus vulgaris

OK

General Statements

Supports healthy respiratory function

Botanical preparation ratio 1:4

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: 40-60 drops (2-3 mL) in juice or water. Take 4 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.

General

NO. TYM-2 1734TH

Seals/Symbols

OK

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See for yourself

Thyme by Herbalist & Alchemist label

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

Thyme 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 Thyme by Herbalist & Alchemist

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 container20 Amounts shown are per serving.

Dried Thyme herb extract

Interacts with
379 drugs
3 mL per serving

Thyme is a common kitchen herb that has long been used for coughs, sore throats, and digestive complaints. It is generally safe in the amounts found i...

Dried Thyme herb extract monograph & interactions

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

Interaction report

Thyme by Herbalist & Alchemist Drug Interactions

Want to check YOUR meds against Thyme?

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
379Drugs
379 Moderate

Ingredients driving the most interactions

dried Thyme herb extract 379

Individual Drug Interactions

The ingredients in Thyme interact with 379 drugs. Click any drug to see the details.

1 of the 1 ingredient in Thyme interact with drugs. Each result below shows which ingredient is responsible. dried Thyme herb extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Thyme 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 Thyme herb extract4 drug types · 379 drugs

Anticholinergic Drugs

Theoretically, concurrent use of anticholinergic drugs and thyme essential oil might reduce the effects of anticholinergic drugs.
In vitro evidence suggests that thyme essential oil and specific essential oil constituents like thymohydroquinone and carvacrol can inhibit acetylcholinesterase (AChE). However, this effect has not been observed in humans.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, thyme leaf extract might have additive effects with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that thyme leaf extract has antiplatelet effects. However, this effect has not been observed in humans.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, concurrent use of cholinergic drugs and thyme essential oil might cause additive cholinergic effects.
In vitro evidence suggests that thyme essential oil and specific essential oil constituents like thymohydroquinone and carvacrol can inhibit acetylcholinesterase (AChE). However, this effect has not been observed in humans.

Likelihood Possible Evidence D
Estrogens

Theoretically, thyme might competitively inhibit the effects of estrogen replacement therapy.
In vitro research shows that thyme has estrogen receptor-binding activity and phytoestrogen content. However, this effect has not been observed in humans.

Likelihood Possible Evidence D
dried Thyme herb extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Thyme, 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

Thyme by Herbalist & Alchemist: Common Questions

Does Thyme by Herbalist & Alchemist interact with any medications?
Yes. Based on its ingredients, Thyme has a known interaction with 379 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Thyme 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 thyme safe during pregnancy or while breastfeeding?
According to the data we hold, thyme is rated Likely Safe in pregnancy and lactation. That said, medicinal doses haven't been studied as thoroughly as food amounts, so talk with your doctor or pharmacist about whether this extract makes sense for you right now.
What are the most common side effects of thyme extract?
When taken by mouth, the most reported side effects are allergic reactions, diarrhea, dizziness, headache, heartburn, nausea, and vomiting — though most people who use it have no problems. If you apply it to your skin, contact dermatitis and skin irritation can occur in some people.
Can I use this if I'm on a blood thinner like warfarin?
Thyme extract may theoretically add to the effects of blood thinners and increase bleeding risk, though this hasn't been proven in humans. Before combining them, check with your doctor or pharmacist — they know your full medication list and can advise whether it's safe for you.
Does this product work for cough or bronchitis?
The evidence we hold is insufficient to say whether thyme reliably helps bronchitis or common cold. It's a traditional remedy, but we don't yet have strong clinical data supporting its use for these conditions. Your doctor or pharmacist can discuss other options backed by better evidence.
Is this the same as thyme essential oil?
This is a liquid extract made with ethyl alcohol and water, not pure essential oil. Concentrated thyme essential oil can be toxic if swallowed, but this product is formulated as a medicinal extract and should be used as directed on the label.
Can thyme interfere with birth control pills?
Thyme extract may theoretically compete with estrogen from birth control pills, though this hasn't been observed in people. If you rely on hormonal contraception, mention this supplement to your doctor or pharmacist before starting — they can help you decide if it's right for you.

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

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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.

Thyme label
Go deeper

The Full Monographs Behind Thyme’s Ingredients

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

Herb & supplement monograph

Thyme

Interacts with 379 drugs

Thyme is a common kitchen herb that has long been used for coughs, sore throats, and digestive complaints. It is generally safe in the amounts found in food, and some cough products that com...

Read the full Thyme monograph →
Sources

Sources & How We Checked

Thyme'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 18 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.

Thyme 18 references
  1. Zava DT, Dollbaum CM, Blen M. Estrogen and progestin bioactivity of foods, herbs, and spices. Proc Soc Exp Biol Med 1998;217:369-78. PubMed
  2. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  3. Okazaki K, Kawazoe K, Takaishi Y. Human platelet aggregation inhibitors from thyme (Thymus vulgaris L.). Phytother Res 2002;16:398-9. .
  4. Spiewak R, Skorska C, Dutkiewicz J. Occupational airborne contact dermatitis caused by thyme dust. Contact Dermatitis 2001;44:235-9. . PubMed
  5. Ernst E, Marz R, Sieder C. A controlled multi-centre study of herbal versus synthetic secretolytic drugs for acute bronchitis. Phytomedicine 1997;4:287-93. PubMed
  6. Yamamoto J, Yamada K, Naemura A, et al. Testing various herbs for antithrombotic effect. Nutrition 2005;21(5):580-7. PubMed
  7. Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
  8. Mackiewicz, B., Skorska, C., Dutkiewicz, J., Michnar, M., Milanowski, J., Prazmo, Z., Krysinska-Traczyk, E., and Cisak, E. Allergic alveolitis due to herb dust exposure. Ann Agric Environ Med 1999;6(2):167-170.
  9. Martinez-Gonzalez, M. C., Goday Bujan, J. J., Martinez, Gomez W., and Fonseca, Capdevila E. Concomitant allergic contact dermatitis due to Rosmarinus officinalis (rosemary) and Thymus vulgaris (thyme). Contact Dermatitis 2007;56(1):49-50.
  10. Jukic, M., Politeo, O., Maksimovic, M., Milos, M., and Milos, M. In vitro acetylcholinesterase inhibitory properties of thymol, carvacrol and their derivatives thymoquinone and thymohydroquinone. Phytother.Res 2007;21(3):259-261.
  11. Marzian, O. [Treatment of acute bronchitis in children and adolescents. Non-interventional postmarketing surveillance study confirms the benefit and safety of a syrup made of extracts from thyme and ivy leaves]. MMW.Fortschr.Med 6-28-2007;149(27-28 Suppl
  12. Cuzzolin, L. and Benoni, G. Attitudes and knowledge toward natural products safety in the pharmacy setting: an Italian study. Phytother.Res 2009;23(7):1018-1023. PubMed
  13. Berova, N., Stransky, L., and Krasteva, M. Studies on contact dermatitis in stomatological staff. Dermatol.Monatsschr. 1990;176(1):15-18.
  14. Smeenk, G., Kerckhoffs, H. P., and Schreurs, P. H. Contact allergy to a reaction product in Hirudoid cream: an example of compound allergy. Br.J Dermatol. 1987;116(2):223-231.
  15. Le Roy, R., Grosshans, E., and Foussereau, J. [Investigation of contact allergies in 100 cases of ulcus cruris (author's transl)]. Derm.Beruf.Umwelt. 1981;29(6):168-170.
  16. Lorenzi, S., Placucci, F., Vincenzi, C., Bardazzi, F., and Tosti, A. Allergic contact dermatitis due to thymol. Contact Dermatitis 1995;33(6):439-440. PubMed
  17. Bahadoran P, Rokni FK, Fahami F. Investigating the therapeutic effect of vaginal cream containing garlic and thyme compared to clotrimazole cream for the treatment of mycotic vaginitis. Iran J Nurs Midwifery Res 2010;15(Suppl 1):343-9.
  18. Erol S, Aydin B, Dilli D, Okumus N, Zenciroglu A, Gündüz M. An interesting newborn case of fructose 1-6 diphosphatase deficiency triggered after thyme juice ingestion. Clin Lab. 2014;60(1):151-3. PubMed

See these in context on the Thyme 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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