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

Rosemary Ingredients & Drug Interactions

by Herbalist & Alchemist

Rosemary 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 Rosemary 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

Rosemary is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for memory and concentration, digestive upset, hair growth.Based on those ingredients, 372 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are dried Rosemary herb 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 Rosemary by Herbalist & Alchemist

Ask about any prescription or over-the-counter medication and we check it for interactions with Rosemary by Herbalist & Alchemist — 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 Rosemary 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 rosemary herb extract. Rosemary is an herbal extract — concentrated from the plant — and comes suspended in a liquid form with ethyl alcohol and distilled water as inactive ingredients.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Supports mental clarity.
  • We looked for evidence on: Memory, Mental alertness, Age-related cognitive decline, cognitive function, focus, concentration.
  • The strongest evidence on file: Rosemary is rated "Possibly Effective" for Memory (Natural Medicines).
  • Also on file: Rosemary is rated "Insufficient Reliable Evidence To Rate" for Age-related cognitive decline, Mental alertness.

Rosemary is rated possibly effective for memory support. For other uses listed — abortion prevention, age-related cognitive decline, alopecia areata (patchy hair loss), and nonalcoholic fatty liver disease — we don't have enough reliable evidence yet to rate how well it works.

The evidence, ingredient by ingredient Rosemary

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.

Rosemary in normal food amounts is considered safe. Concentrated extracts like this one, and especially undiluted essential oil, warrant more caution.

Topically, allergic reactions and contact dermatitis can happen, and some people develop photosensitivity (increased sun sensitivity). Orally, the concentrated oil or its camphor content might trigger seizures in susceptible people.

The safety data advises against medicinal doses during pregnancy; food amounts are likely fine, but talk it over with your doctor. For breastfeeding, there isn't enough safety data on medicinal doses, so avoid them — food amounts should be okay.

Side effects, ingredient by ingredient Rosemary

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 — Rosemary.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 372 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 rosemary extract, double-check with your doctor or pharmacist if you're on blood thinners (anticoagulants), antiplatelet drugs, aspirin, salicylate-containing pain relievers like Trilisate or Disalcid, diabetes medications, or any drugs your liver processes using the CYP1A2 enzyme system.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

If you're looking for memory support and don't take blood thinners, diabetes medications, or salicylate-containing pain relievers, this extract may be worth trying. But if you're on any prescription medications — especially those listed above — check with your doctor or pharmacist first to make sure it's safe for your situation.

Pregnant or breastfeeding? Same conversation: bring the label and talk it through with them.

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 Mar 23, 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 Rosemary, straight from the product label.

Brand Herbalist & Alchemist
Barcode (UPC) 667056124472
Net contents 2 fl. Oz.; 60 mL
Market status On market
Date entered into DSLD Mar 23, 2018
DSLD ID 174610
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 Rosemary 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:
1.5 mL
Servings per container
40
UPC/BARCODE
667056124472
IngredientAmount% DV
dried Rosemary herb extract1.5 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

Rosmarinus officinalis

OK

General Statements

Supports mental clarity

Botanical preparation ratio 1:4

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: 20-30 drops (1-1.5 mL) in juice or water. Take 4 times per day. Shake well before using.

Precautions

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. RSM-2 1737TU

Seals/Symbols

OK

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

See for yourself

Rosemary by Herbalist & Alchemist label

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

Rosemary 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 Rosemary 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 container40 Amounts shown are per serving.

Dried Rosemary herb extract

Interacts with
372 drugs
1.5 mL per serving

Rosemary is a fragrant Mediterranean herb that is safe and flavorful in normal food amounts. Some early research suggests possible benefits for memory...

Dried Rosemary 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

Rosemary by Herbalist & Alchemist Drug Interactions

Want to check YOUR meds against Rosemary?

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
372Drugs
212 Moderate 160 Minor

Ingredients driving the most interactions

dried Rosemary herb extract 372

Individual Drug Interactions

The ingredients in Rosemary interact with 372 drugs. Click any drug to see the details.

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Rosemary 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 Rosemary herb extract6 drug types · 372 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, rosemary may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that rosemary inhibits platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking rosemary with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research shows that rosemary extract can decrease blood glucose levels in diabetic models. However, research in humans is conflicting. Although rosemary powder decreased blood glucose levels in healthy adults, no change in blood glucose levels was seen in adults with type 2 diabetes, most of whom were taking antidiabetes drugs.

Likelihood Possible Evidence B
Aspirin

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as aspirin.
Rosemary is reported to contain salicylates.

Likelihood Possible Evidence D
Choline Magnesium Trisalicylate (Trilisate)

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as choline magnesium trisalicylate.
Rosemary is reported to contain salicylate.

Likelihood Possible Evidence D
Salsalate (Disalcid)

Theoretically, rosemary might have additive effects with salicylate-containing drugs such as salsalate.
Rosemary is reported to contain salicylate.

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

Theoretically, rosemary might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that rosemary induces CYP1A2 enzymes. This effect has not been reported in humans.

Likelihood Unlikely Evidence D
dried Rosemary herb extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Rosemary, 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

Rosemary by Herbalist & Alchemist: Common Questions

Does Rosemary by Herbalist & Alchemist interact with any medications?
Yes. Based on its ingredients, Rosemary has a known interaction with 372 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Rosemary 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 this safe to take if I'm pregnant?
The safety data advises against medicinal doses of rosemary during pregnancy. Food amounts — like using it as a spice in cooking — are likely fine, but if you're considering a liquid extract like this, talk with your doctor or pharmacist first so they can weigh it for your situation.
Can I use this rosemary extract while breastfeeding?
There isn't enough safety data on medicinal doses of rosemary during breastfeeding, so those should be avoided. Food amounts are likely okay. If you want to use this concentrated extract, check with your pharmacist or doctor first.
What's the difference between using rosemary as a spice in cooking and this extract?
This is a concentrated extract — much more potent than the small amounts you'd add to food. Rosemary in normal culinary amounts is safe, but concentrated extracts and especially undiluted essential oils need more caution. That's why it matters whether you take it as a supplement.
Does rosemary really help with memory?
Rosemary is rated possibly effective for memory, meaning some evidence supports it, but we'd like more solid research. For other uses like age-related cognitive decline or hair loss, we don't have enough reliable evidence yet to say how well it works.
What side effects should I watch for?
Most people tolerate it, but some develop allergic reactions or skin irritation when applied topically. Rarely, the concentrated oil or its camphor content could trigger seizures. If you notice swelling in your lips or gums, a rash, or unusual symptoms, stop and contact your pharmacist.

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

Not sure if Rosemary 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.

Rosemary label
Go deeper

The Full Monographs Behind Rosemary’s Ingredients

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

Herb & supplement monograph

Rosemary

Interacts with 372 drugs

Rosemary is a fragrant Mediterranean herb that is safe and flavorful in normal food amounts. Some early research suggests possible benefits for memory, mood, and hair growth, but the evidenc...

Read the full Rosemary monograph →
Sources

Sources & How We Checked

Rosemary'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 20 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.

Rosemary 20 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  5. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  6. Cartier LC, Lehrer A, Malo JL. Occupational asthma caused by aromatic herbs. Allergy 1996;51:647-9. DOI
  7. Burkhard PR, Burkhardt K, Haenggeli CA, Landis T. Plant-induced seizures: reappearance of an old problem. J Neurol 1999;246:667-70. PubMed
  8. Swain AR, Dutton SP, Truswell AS. Salicylates in foods. J Am Diet.Assoc 1985;85(8):950-60. DOI
  9. Zhu BT, Loder DP, Cai MX, et al. Dietary administration of an extract from rosemary leaves enhances the liver microsomal metabolism of endogenous estrogens and decreases their uterotropic action in CD-1 mice. Carcinogenesis 1998;19(10):1821-7. PubMed
  10. Debersac P, Heydel JM, Amiot MJ, et al. Induction of cytochrome P450 and/or detoxication enzymes by various extracts of rosemary: description of specific patterns. Food Chem Toxicol 2001;39(9):907-18. PubMed
  11. Debersac P, Vernevaut MF, Amiot MJ, et al. Effects of a water-soluble extract of rosemary and its purified component rosmarinic acid on xenobiotic-metabolizing enzymes in rat liver. Food Chem Toxicol 2001;39(2):109-17. PubMed
  12. Lee JJ, Jin YR, Lee JH, et al. Antiplatelet activity of carnosic acid, a phenolic diterpene from Rosmarinus officinalis. Planta Med 2007;73(2):121-7.
  13. Yamamoto J, Yamada K, Naemura A, et al. Testing various herbs for antithrombotic effect. Nutrition 2005;21(5):580-7. PubMed
  14. Naemura A, Ura M, Yamashita T, et al. Long-term intake of rosemary and common thyme herbs inhibits experimental thrombosis without prolongation of bleeding time. Thromb Res 2008;122(4):517-22. PubMed
  15. Lee JJ, Jin YR, Lim Y, et al. Antiplatelet activity of carnosol is mediated by the inhibition of TXA2 receptor and cytosolic calcium mobilization. Vascul Pharmacol 2006;45:148-53. PubMed
  16. Bakirel, T., Bakirel, U., Keles, O. U., Ulgen, S. G., and Yardibi, H. In vivo assessment of antidiabetic and antioxidant activities of rosemary (Rosmarinus officinalis) in alloxan-diabetic rabbits. J Ethnopharmacol 2-28-2008;116(1):64-73. PubMed
  17. Erenmemisoglu, A., Saraymen, R., and Ustun, S. Effect of a Rosmarinus officinalis leave extract on plasma glucose levels in normoglycaemic and diabetic mice. Pharmazie 1997;52(8):645-646.
  18. Valones MAA, Silva ICG, Gueiros LAM, Leão JC, Caldas AF Jr, Carvalho AAT. Clinical assessment of rosemary-based toothpaste (Rosmarinus officinalis Linn.): A randomized controlled double-blind study. Braz Dent J. 2019;30(2):146-151. PubMed
  19. Quirarte-Báez SM, Zamora-Perez AL, Reyes-Estrada CA, et al. A shortened treatment with rosemary tea (rosmarinus officinalis) instead of glucose in patients with diabetes mellitus type 2 (TSD). J Popul Ther Clin Pharmacol. 2019;26(4):e18-e28.
  20. Al Jamal A. Effect of rosemary (Rosmarinus officinalis) on lipid profiles and blood glucose in human diabetic patients (type-2). African J. Biochem. Res. 2014;8(8):147-50. DOI

See these in context on the Rosemary 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