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Dietary supplement

Basil Ingredients & Drug Interactions

by Hawaii Pharm

Basil 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 Basil 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

Basil is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for digestive upset and gas, stress and anxiety, antimicrobial support.Based on those ingredients, 289 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are certified organic Basil 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 Basil by Hawaii Pharm

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

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HelloPharmacist Scorecard of Basil 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 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 basil extract in a liquid form. The extract is suspended in vegetable palm glycerin, pharmaceutical-grade alcohol, and purified Hawaiian water.

Does it work?

Couldn't assess
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 assessable

This is a single-ingredient Basil product and its label doesn't state a use — see Basil's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The effectiveness evidence for basil extract isn't established in the data we hold. Ratings for acne, headache, common cold, constipation, diarrhea, and flatulence all show insufficient reliable evidence to determine whether it works for those purposes.

The evidence, ingredient by ingredient Basil

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.

Basil as a food is generally well tolerated. However, concentrated extracts like this one are less studied, and the available safety data is limited.

The caution in the data is clear: food amounts are likely fine, but medicinal doses and essential oils lack adequate safety information. One case of allergic contact dermatitis (a skin rash from direct contact) has been reported in someone with occupational basil exposure, though that's not the same as taking a supplement.

Pregnancy and lactation safety data for this extract is mixed — some data suggests it's likely safe, while other data suggests it may be unsafe. Because the evidence is conflicting, talk with your doctor or pharmacist before using this product if you're pregnant or breastfeeding.

Side effects, ingredient by ingredient Basil

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 — Basil.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 289 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.

Check before using this product if you take blood thinners or antiplatelet drugs (like warfarin or clopidogrel) — basil may increase bleeding risk. Also double-check if you're on any blood pressure medications, since basil extract may lower blood pressure further.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Basil extract may be worth considering if you're interested in herbal supplements, but the evidence for what it actually does isn't clear. If you take blood thinners, antiplatelet drugs, or blood pressure medications, check with your doctor or pharmacist first — basil can interact with all three.

Pregnant or breastfeeding? The safety data is mixed, so confirm with your healthcare provider before starting.

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 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 Basil, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 650905474163
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Oct 23, 2020
DSLD ID 237285
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), 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 Basil 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
650905474163
IngredientAmount% DV
certified organic Basil extract970 mg--

Other ingredients: Vegetable Palm Glycerin, pharmaceutical grade Alcohol, artesian Hawaiian purified 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.
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.

Formula

(Ocimum basilicum)

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

Basil by Hawaii Pharm label

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

Basil 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 Basil by Hawaii Pharm

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

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

Certified organic Basil extract

Interacts with
289 drugs
970 mg per serving

Basil is a popular cooking herb that is generally safe in the amounts used in food. While it has a long history of traditional medicinal use and conta...

Certified organic Basil extract monograph & interactions

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

Interaction report

Basil by Hawaii Pharm Drug Interactions

Want to check YOUR meds against Basil?

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
289Drugs
289 Moderate

Ingredients driving the most interactions

certified organic Basil extract 289

Individual Drug Interactions

The ingredients in Basil interact with 289 drugs. Click any drug to see the details.

1 of the 1 ingredient in Basil interact with drugs. Each result below shows which ingredient is responsible. certified organic Basil extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Basil 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 Basil extract2 drug types · 289 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, basil might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro and animal studies suggest that basil oils and extracts inhibit platelet aggregation.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, basil might increase the risk of hypotension when taken with antihypertensive drugs.
Animal research suggests that basil extract can reduce systolic and diastolic blood pressure.

Likelihood Possible Evidence D
certified organic Basil extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Basil, 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

Basil by Hawaii Pharm: Common Questions

Does Basil by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, Basil has a known interaction with 289 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Basil 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 basil extract the same as basil I cook with?
Not quite. Basil as a food is generally well tolerated, but this is a concentrated extract, which is much more potent and less studied for safety. Food amounts are likely fine, but medicinal doses of concentrated supplements are a different story.
Can I take this while I'm pregnant or breastfeeding?
The safety data here is mixed — some research suggests it's likely safe, but other data raises a possibly unsafe flag. You'll want to talk with your doctor or pharmacist about your specific situation before starting.
What is basil extract actually used for?
The evidence we hold doesn't show that basil extract reliably works for acne, headaches, colds, or digestive issues. The data isn't there to say one way or the other.
Are there any side effects I should know about?
Allergic contact dermatitis (a rash from direct contact) has been reported in someone with heavy occupational exposure to basil. That's rare, but if you've had skin reactions to herbs, let your pharmacist know.
What's in this liquid besides basil?
It also contains vegetable palm glycerin, pharmaceutical-grade alcohol, and purified Hawaiian water as the base for the extract.

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

Not sure if Basil 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.

Basil label
Go deeper

The Full Monographs Behind Basil’s Ingredients

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

Herb & supplement monograph

Basil

Interacts with 289 drugs

Basil is a popular cooking herb that is generally safe in the amounts used in food. While it has a long history of traditional medicinal use and contains antioxidant compounds, strong human...

Read the full Basil monograph →
Sources

Sources & How We Checked

Basil'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 7 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.

Basil 7 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. 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
  4. Tohti, I., Tursun, M., Umar, A., Turdi, S., Imin, H., and Moore, N. Aqueous extracts of Ocimum basilicum L. (sweet basil) decrease platelet aggregation induced by ADP and thrombin in vitro and rats arterio--venous shunt thrombosis in vivo. Thromb.Res 200 PubMed
  5. Amrani, S., Harnafi, H., Gadi, D., Mekhfi, H., Legssyer, A., Aziz, M., Martin-Nizard, F., and Bosca, L. Vasorelaxant and anti-platelet aggregation effects of aqueous Ocimum basilicum extract. J Ethnopharmacol. 8-17-2009;125(1):157-162. PubMed
  6. Umar, A., Imam, G., Yimin, W., Kerim, P., Tohti, I., Berke, B., and Moore, N. Antihypertensive effects of Ocimum basilicum L. (OBL) on blood pressure in renovascular hypertensive rats. Hypertens.Res 5-7-2010; PubMed
  7. Kiec-Swierczynska M, Krecisz B, Chomiczewska D, et al. Occupational allergic contact dermatitis caused by basil (Ocimum basilicum). Contact Dermatitis 2010;63(6):365-7.

See these in context on the Basil 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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