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Dietary supplement

California Poppy and Lavender Ingredients & Drug Interactions

by Hawaii Pharm

California Poppy and Lavender label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking California Poppy and 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

California Poppy and Lavender is a dietary supplement by Hawaii Pharm with 2 active ingredients. Its ingredients are commonly taken for anxiety and stress, trouble sleeping (insomnia), mild aches and pains.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 California Poppy extract, certified organic Lavender 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 California Poppy and Lavender by Hawaii Pharm

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

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HelloPharmacist Scorecard of California Poppy and Lavender by Hawaii Pharm

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 Jul 16, 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 2 of its 2 active ingredients.
  • “Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

This liquid contains 2 active herbal extracts: certified organic California poppy and certified organic lavender, both in extract form. The product also includes vegetable palm glycerin and alcohol as inactive ingredients to preserve and deliver the extracts.

California poppy has a long history in herbal medicine for relaxation, while lavender is widely used for similar purposes. Both are included here as a combination blend.

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.

Why this rating?
  • The label markets this product for: Relaxation, sleep support, and stress relief.
  • We looked for evidence on: Anxiety, Insomnia, Stress, Perioperative anxiety, Pre-procedural anxiety, Restless legs syndrome (RLS) — and 4 related terms.
  • The closest evidence on file: California Poppy is rated "Insufficient Reliable Evidence To Rate" for Anxiety (Natural Medicines).
  • Also on file: California Poppy is rated "Insufficient Reliable Evidence To Rate" for Insomnia.
  • Also on file: Lavender is rated "Insufficient Reliable Evidence To Rate" for Pre-procedural anxiety, Insomnia, Restless legs syndrome (RLS), Stress, and more.

The evidence for what this product actually does is limited. California poppy has insufficient reliable evidence to rate its effectiveness for anxiety, insomnia, or bedwetting — we don't have enough rigorous studies to say it works.

Lavender shows possibly effective evidence only for menstrual pain; for other uses like anxiety and sleep, the evidence is either insufficient or suggests it may not work (as with cancer-related pain). The bottom line is that neither ingredient is well-established for the relaxation purposes many people buy them for.

The evidence, ingredient by ingredient California Poppy 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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Both ingredients are generally well tolerated for short-term use, though human safety data for California poppy are limited. The most common side effects from lavender include headache, nausea, constipation, diarrhea, and digestive upset — these are uncommon, but possible.

California poppy, when combined with other herbs in studies, has been linked to muscle stiffness, morning fatigue, and nausea, though it's unclear whether California poppy alone caused these or if it was the combination. Neither ingredient has adequate safety data in pregnancy or while breastfeeding; the safety data advise against use during these times.

Lavender oil should never be swallowed as a pure essential oil (this product is an extract, not pure oil), and topical lavender oil can irritate skin in some people.

Side effects, ingredient by ingredient California Poppy 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?
  • 2 of the 2 matched ingredients can interact with medications — California Poppy, 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.

Before taking this product, check your medications against our tool if you take any CNS depressants — sedatives, sleep aids, anti-anxiety drugs, or sedating pain relievers. Both California poppy and lavender may increase the sedative effect (Moderate severity).

Your doctor or pharmacist can tell you whether it's safe to combine them or if you need to adjust timing.

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.

This product is for people interested in herbal approaches to relaxation and sleep, but the evidence that it actually works is weak. If you take any sedating medications or sleep aids, check with your doctor or pharmacist before starting it — the combination could increase drowsiness more than either would alone.

Pregnant or breastfeeding? The safety data aren't there; talk with your healthcare provider about whether this is right for you.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Oct 23, 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 California Poppy and Lavender, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 0787699226224
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Oct 23, 2020
DSLD ID 237940
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten 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 California Poppy and Lavender by Hawaii Pharm, 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:
0.7 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
0787699226224
IngredientAmount% DV
Blend0 NP--
certified organic California Poppy extract250 mcg--
certified organic Lavender extract250 mcg--

Other ingredients: Vegetable Palm Glycerin, Alcohol

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

Hawaii Pharm Herbal Extract Highest quality since 2008

Made with Aloha!

Formulation

Contains no GMO, gluten, artificial colors, heavy metals, preservatives, pesticides, fertilizers.

Super concentrated liquid herbal extract. Dry herb/menstruum ratio: 1:3.

Manufactured in an FDA registered facility.

Non GMO Gluten free

Made in USA, Hawaii

Suggested/Recommended/Usage/Directions

Directions for use: Shake well before using. Take about 20-30 drops (0.7-1 ml, one full squeeze of the dropper bulb) to 2-4 oz of juice or water up to 4 times per day.

Precautions

Warning: Keep out of the reach of children.

May have contraindications. We recommend to seek expert medical advice before taking.

Do not use if you are allergic to any ingredients.

Consult a physician before using during pregnancy, if nursing or taking any medications.

Do not use if seal is broken or missing.

Storage

Store in a cool dry place.

FDA Statement of Identity

Herbal Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Seals/Symbols

FDA Registered Facility Made in United States of America USA

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

See for yourself

California Poppy and Lavender by Hawaii Pharm label

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

California Poppy and 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 California Poppy and Lavender by Hawaii Pharm

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Other (inactive) ingredients: Vegetable Palm Glycerin, Alcohol. These complete the product’s ingredient list but are not active constituents.

Interaction report

California Poppy and Lavender by Hawaii Pharm Drug Interactions

Want to check YOUR meds against California Poppy and 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 California Poppy extract 248
certified organic Lavender extract 248

Individual Drug Interactions

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

2 of the 2 ingredients in California Poppy and Lavender interact with drugs. Each result below shows which ingredient is responsible. certified organic California Poppy extract certified organic Lavender extract

Each ingredient & the kinds of drugs it affects

For each ingredient in California Poppy and Lavender with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

certified organic California Poppy extract1 drug type · 248 drugs

Cns Depressants

Theoretically, taking California poppy with drugs with sedative effects may increase the risk of sedative effects.
Laboratory research shows that California poppy has sedative effects.

Likelihood Possible Evidence D
certified organic California Poppy extract full monograph & interactions

certified organic Lavender 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 extract full monograph & interactions
The maker

Brand information

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

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
City
Honolulu
State
HI
ZipCode
96815
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

California Poppy and Lavender by Hawaii Pharm: Common Questions

Does California Poppy and Lavender by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, California Poppy and 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?
California Poppy and Lavender contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Will this help me sleep?
Both California poppy and lavender are used traditionally for sleep, but the scientific evidence doesn't establish that they work. California poppy and lavender both lack sufficient reliable evidence for insomnia — we don't have enough strong studies to say either one is effective for sleep.
Is this safe if I'm pregnant or breastfeeding?
No. The safety data for both ingredients advise against use during pregnancy and while breastfeeding because there isn't enough research. Talk with your doctor or pharmacist about what might be safer for you during these times.
What side effects might I notice?
Lavender can cause headache, nausea, constipation, diarrhea, or digestive upset — these are uncommon. California poppy has limited safety data, but when combined with other herbs in studies it's been associated with muscle stiffness, morning fatigue, and nausea, though it's unclear if California poppy alone caused them.
Can I take this with my sleeping pill?
Not without checking first. Both ingredients have sedative effects and may boost the drowsiness from your medication. Talk with your doctor or pharmacist before combining them — they can advise whether it's safe or if you need to adjust how you take your medications.
What's actually in this product?
It's a liquid blend of two herbal extracts — California poppy and lavender — preserved with vegetable palm glycerin and alcohol. Both extracts are certified organic.

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

Not sure if California Poppy and Lavender is safe with your meds?

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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.

California Poppy and Lavender label
Go deeper

The Full Monographs Behind California Poppy and Lavender’s Ingredients

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

Herb & supplement monograph

California Poppy

Interacts with 248 drugs

California poppy is a traditional herbal remedy used mainly for anxiety and sleep problems, often combined with other calming herbs. Human research is very limited, so its true benefits are...

Read the full California Poppy monograph → 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

California Poppy and 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 23 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.

California Poppy 3 references
  1. Hanus M, Lafon J, Mathieu M. Double-blind, randomised, placebo-controlled study to evaluate the efficacy and safety of a fixed combination containing two plant extracts (Crataegus oxyacantha and Eschscholtzia californica) and magnesium in mild-to-moderate
  2. Paul LD, Springer D, Staack RF, et al. Cytochrome P450 isoenzymes involved in rat liver microsomal metabolism of californine and protopine. Eur J Pharmacol 2004;485:69-79. PubMed
  3. Paul LD, Maurer HH. Studies on the metabolism and toxicological detection of the Eschscholtzia californica alkaloids californine and protopine in urine using gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2003;789:43-5

See these in context on the California Poppy monograph →

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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