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Dietary supplement

Lavender Ingredients & Drug Interactions

by Herbal Terra

Lavender label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Lavender 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

Lavender is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, sleep problems, relaxation and calming.Based on those ingredients, 248 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are certified organic Lavender (Lavandula angustifolia) dried herb liquid 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 Lavender by Herbal Terra

Ask about any prescription or over-the-counter medication and we check it for interactions with Lavender by Herbal Terra — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Lavender by Herbal Terra

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 Aug 13, 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: certified organic lavender (Lavandula angustifolia) as a dried herb liquid extract. The inactive ingredient is menstruum, the liquid used to make the extract.

Lavender is a flowering plant traditionally used to support relaxation and emotional calm. The extract form concentrates the plant's active compounds into a liquid you can measure by dose.

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 Lavender's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Relaxation and calming support.
  • We looked for evidence on: Insomnia, Perioperative anxiety, Pre-procedural anxiety, Stress, Psychological well-being, Sleep quality — and 1 related terms.
  • The closest evidence on file: Lavender is rated "Insufficient Reliable Evidence To Rate" for Pre-procedural anxiety (Natural Medicines).
  • Also on file: Lavender is rated "Insufficient Reliable Evidence To Rate" for Insomnia, Stress, Psychological well-being, Perioperative anxiety.

The evidence on lavender is mixed. It's rated possibly effective for dysmenorrhea (menstrual pain).

For cancer-related pain, the data suggests it's possibly ineffective. For alopecia areata (hair loss), pre-procedural anxiety, and cancer-related fatigue, there isn't enough reliable evidence yet to rate it either way.

In plain terms: lavender has some backing for period discomfort, but we don't have solid proof it works for the other uses studied so far.

The evidence, ingredient by ingredient Lavender

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.

Orally, lavender is generally well tolerated in food amounts and in larger medicinal doses. The most common side effects are breath odor, constipation, diarrhea, indigestion, burping, headache, and nausea.

Topically, lavender oil is usually well tolerated, though allergic skin reactions can occur. Rare cases of breast tissue growth in prepubertal boys using lavender oil have been reported.

There isn't enough reliable safety data on medicinal amounts, so the guidance is to use it only under your doctor's approval. Do not swallow essential oil—it's toxic.

If you're pregnant or breastfeeding, the safety data on file doesn't establish whether it's safe; talk with your healthcare provider before using any medicinal amount.

Side effects, ingredient by ingredient Lavender

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 — Lavender.
  • The most serious interaction on file is rated Moderate.
  • For scale: 248 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take CNS depressants—sedatives, sleeping pills, or other medications that slow brain activity—discuss this product with your doctor or pharmacist first. Lavender could theoretically strengthen their sedative effects, which is a moderate-severity concern worth confirming before you start.

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.

Herbal Terra Lavender may help with period pain, but the evidence for other uses is either limited or suggests no effect. It's generally well tolerated when taken by mouth, though headache and digestive upset can happen.

The main caution is its moderate interaction with sedating medications—check with your doctor or pharmacist before combining 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 Sep 25, 2020.

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 Lavender, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 7429524219232
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Sep 25, 2020
DSLD ID 234003
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten Free, Sugar Free
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 Lavender by Herbal Terra, 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 mL
Servings per container
120
UPC/BARCODE
7429524219232
IngredientAmount% DV
certified organic Lavender (Lavandula angustifolia) dried herb liquid extract970 mg--

Other ingredients: Menstruum

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.
Formulation

Origin of plant material: France.

Manufactured in the USA in an FDA registered facility

Sugar free

Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Super concentrated liquid herbal extract

Non GMO

No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free

Suggested/Recommended/Usage/Directions

Direction Shake well before use. Adults take up to 30 drops (1 mL, one full squeeze of the dropper bulb) in 3-4 fl. oz of juice or water up to 4 times a day. We recommend to seek expert medical advice before taking this or any other herbal supplements.

FDA Disclaimer Statement

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

Precautions

Caution May have contraindications.

Do not use if you are allergic to any ingredients.

Consult a physician before using during pregnancy, if nursing, or if you are on any medications.

Keep out of the reach of children.

Storage

Store in a cool, dry, dark place.

Formula

Lavandula angustifolia

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

Made in USA Made in an FDA registered facility Natural Gluten Free

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

See for yourself

Lavender by Herbal Terra label

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

Lavender 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 Lavender by Herbal Terra

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 container120 Amounts shown are per serving.

Certified organic Lavender (Lavandula angustifolia) dried herb liquid extract

Interacts with
248 drugs
970 mg per serving

Lavender is a fragrant herb most popular for promoting relaxation, easing anxiety, and supporting sleep, with some encouraging evidence for a standard...

Certified organic Lavender (Lavandula angustifolia) dried herb liquid extract monograph & interactions

Other (inactive) ingredients: Menstruum. These complete the product’s ingredient list but are not active constituents.

Interaction report

Lavender by Herbal Terra Drug Interactions

Want to check YOUR meds against Lavender?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
248Drugs
248 Moderate

Ingredients driving the most interactions

certified organic Lavender (Lavandula angustifolia) dried herb liquid extract 248

Individual Drug Interactions

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

1 of the 1 ingredient in Lavender interact with drugs. Each result below shows which ingredient is responsible. certified organic Lavender (Lavandula angustifolia) dried herb liquid extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Lavender 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.

certified organic Lavender (Lavandula angustifolia) dried herb liquid extract1 drug type · 248 drugs

Cns Depressants

Theoretically, lavender might potentiate the therapeutic effects and adverse effects of CNS depressants.
Laboratory research suggests that lavender has sedative effects. However, clinical studies in patients taking oral lavender oil (Silexan) 160 mg for 10 weeks or taking lavender flower powder 1 gram daily for 2 months have not reported side effects of drowsiness, sedation, or sleepiness. There is still some concern that higher doses or different preparations of lavender might have additive effects with CNS depressant medications.

Likelihood Unlikely Evidence D
certified organic Lavender (Lavandula angustifolia) dried herb liquid extract full monograph & interactions
The maker

Brand information

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

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra
Pharmacist Counseling Corner

Lavender by Herbal Terra: Common Questions

Does Lavender by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Lavender has a known interaction with 248 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Lavender 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 Herbal Terra Lavender if I'm pregnant or breastfeeding?
The safety data on file doesn't establish whether medicinal amounts of lavender are safe during pregnancy or while breastfeeding. Talk with your doctor or pharmacist before using any medicinal amount—they can advise you based on your individual situation.
What are the most common side effects?
Orally, the most common side effects are breath odor, constipation, diarrhea, indigestion, burping, headache, and nausea. Most people tolerate it well, but these can happen.
Does lavender really help with anxiety?
For pre-procedural anxiety (anxiety before a medical procedure), there isn't enough reliable evidence to say whether it works. We don't have solid proof either way from the studies we have.
Is this safe to take long-term?
The safety data isn't comprehensive enough to say with certainty. Use it only with guidance from your healthcare provider, especially if you plan to take it for weeks or months.
Can I use lavender oil from this product on my skin?
This product is a dried herb liquid extract meant to be taken by mouth, not applied to skin. Don't apply it topically without talking to your doctor first. Pure lavender essential oil can irritate skin and cause allergic reactions in some people.

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.

Lavender label
Go deeper

The Full Monographs Behind Lavender’s Ingredients

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

Herb & supplement monograph

Lavender

Interacts with 248 drugs

Lavender is a fragrant herb most popular for promoting relaxation, easing anxiety, and supporting sleep, with some encouraging evidence for a standardized oral lavender oil product for anxie...

Read the full Lavender monograph →
Sources

Sources & How We Checked

Lavender'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.

Lavender 20 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  3. Akhondzadeh S, Kashani L, Fotouhi A, et al. Comparison of Lavandula angustifolia Mill. tincture and imipramine in the treatment of mild to moderate depression: a double-blind, randomized trial. Prog Neuropsychopharmacol Biol Psychiatry 2003;27:123-7. PubMed
  4. Varma S, Blackford S, Statham BN, Blackwell A. Combined contact allergy to tea tree oil and lavender oil complicating chronic vulvovaginitis. Contact Dermatitis 2000;42:309-10.
  5. Coulson IH and Khan AS. Facial 'pillow' dermatitis due to lavender oil allergy. Contact Dermatitis 1999;41(2):111. PubMed
  6. Woelk, H. and Schlafke, S. A multi-center, double-blind, randomised study of the Lavender oil preparation Silexan in comparison to Lorazepam for generalized anxiety disorder. Phytomedicine. 2010;17(2):94-99. PubMed
  7. Kasper, S., Gastpar, M., Muller, W. E., Volz, H. P., Moller, H. J., Dienel, A., and Schlafke, S. Silexan, an orally administered Lavandula oil preparation, is effective in the treatment of 'subsyndromal' anxiety disorder: a randomized, double-blind, plac
  8. Uehleke, B., Schaper, S., Dienel, A., Schlaefke, S., and Stange, R. Phase II trial on the effects of Silexan in patients with neurasthenia, post-traumatic stress disorder or somatization disorder. Phytomedicine. 6-15-2012;19(8-9):665-671. PubMed
  9. Brandao FM. Occupational allergy to lavender oil. Contact Dermatitis 1986;15(4):249-250. PubMed
  10. Rademaker M. Allergic contact dermatitis from lavender fragrance in Difflam gel. Contact Dermatitis 1994;31(1):58-59. PubMed
  11. Kasper S, Gastpar M, Müller WE, et al. Lavender oil preparation Silexan is effective in generalized anxiety disorder--a randomized, double-blind comparison to placebo and paroxetine. Int J Neuropsychopharmacol. 2014 Jun;17(6):859-69. PubMed
  12. Farshbaf-Khalili A, Kamalifard M, Namadian M. Comparison of the effect of lavender and bitter orange on anxiety in postmenopausal women: A triple-blind, randomized, controlled clinical trial. Complement Ther Clin Pract 2018;31:132-8. PubMed
  13. Bingham LJ, Tam MM, Palmer AM, Cahill JL, Nixon RL. Contact allergy and allergic contact dermatitis caused by lavender: A retrospective study from an Australian clinic. Contact Dermatitis. 2019;81(1):37-42. PubMed
  14. Donelli D, Antonelli M, Bellinazzi C, Gensini GF, Firenzuoli F. Effects of lavender on anxiety: A systematic review and meta-analysis. Phytomedicine. 2019;65:153099. PubMed
  15. Firoozeei TS, Feizi A, Rezaeizadeh H, Zargaran A, Roohafza HR, Karimi M. The antidepressant effects of lavender (Lavandula angustifolia Mill.): A systematic review and meta-analysis of randomized controlled clinical trials. Complement Ther Med 2021;59:102 PubMed
  16. Kodama T, Watanabe T, Mataki N, Kanoh S, Kichikawa Y. Acute eosinophilic pneumonia following aromatherapy with essential oil. Respir Med Case Rep 2022;37:101657. PubMed
  17. Barbaud A, Kurihara F, Raison-Peyron N, et al. Allergic contact dermatitis from essential oil in consumer products: Mode of uses and value of patch-tests with an essential oil series. Results of a French study of the DAG (dermato-allergy group of the Fren
  18. Ozer H, Sayan ZA, Baloglu I, Ozturk Y, Yonet F, Turkmen K. Unknown criminals for kidney: Acute interstitial nephritis due to lavender tea. Explore (NY) 2023. PubMed
  19. Kasper S, Volz HP, Möller HJ, et al. Lavender oil preparation Silexan is effective in mild-to-moderate major depression: a randomized, placebo- and reference-controlled trial. Eur Arch Psychiatry Clin Neurosci 2024. PubMed
  20. Simaei SR, Askari VR, Rostami M, et al. Lavender and metformin effectively propagate progesterone levels in patients with polycystic ovary syndrome: A randomized, double-blind clinical trial. Fitoterapia 2023;172:105720. PubMed

See these in context on the Lavender 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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