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Dietary supplement

Banaba Ingredients & Drug Interactions

by Hawaii Pharm

Banaba label
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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 Banaba 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

Banaba is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, type 2 diabetes, weight management.Based on those ingredients, 299 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Banaba Leaf Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Banaba by Hawaii Pharm

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

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HelloPharmacist Scorecard of Banaba 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: Banaba Leaf Extract, Dry. Banaba is a plant extract traditionally used to support blood sugar and metabolic health, though the evidence for its effectiveness isn't yet solid.

The liquid form also includes alcohol, water, and glycerin 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 Banaba's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: blood sugar support.
  • We looked for evidence on: Diabetes, Impaired glucose tolerance (prediabetes), Metabolic syndrome, hyperglycemia, glycemic control.
  • The closest evidence on file: Banaba is rated "Insufficient Reliable Evidence To Rate" for Diabetes (Natural Medicines).
  • Also on file: Banaba is rated "Insufficient Reliable Evidence To Rate" for Impaired glucose tolerance (prediabetes), Metabolic syndrome.

The evidence for banaba isn't established yet in our data. Studies rate it as having insufficient reliable evidence for diabetes, prediabetes, and metabolic syndrome.

That doesn't mean it doesn't work — it means we don't have enough high-quality research yet to say whether it does. If you're considering it for blood sugar support, talk it over with your doctor about whether it fits your situation and whether it might replace or work alongside anything else you're taking.

The evidence, ingredient by ingredient Banaba

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.

Banaba extract is generally well tolerated in short-term studies, but we don't have good data on how safe it is long-term. In one product that combined banaba with another plant, some people reported dizziness, headache, tremor, weakness, and stomach upset — though it's unclear whether banaba, the other ingredient, or both caused these effects.

During pregnancy, there isn't enough safety data, so it's best avoided. Likewise, there's no reliable safety information for nursing, so avoid it while breastfeeding.

Side effects, ingredient by ingredient Banaba

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 — Banaba.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 299 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 with your doctor or pharmacist if you use blood pressure medications, diabetes drugs, or any other medications that depend on the OATP transporter for absorption — all three carry moderate interaction risk. They'll want to review your exact medications and monitor you if you decide to start banaba.

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.

Banaba Leaf Extract may be worth considering if you're interested in natural support for blood sugar or metabolic health, but talk with your doctor first — especially if you take blood pressure or diabetes medications. Long-term safety data is sparse, and it's not safe during pregnancy or while nursing.

Your own healthcare provider can help you decide if it's right for you and whether it's safe with your other medications.

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 24, 2023.

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 Banaba, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 840253605115
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Oct 24, 2023
DSLD ID 301253
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 Banaba 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
840253605115
IngredientAmount% DV
Banaba Leaf Extract, Dry983 mg--

Other ingredients: Alcohol, Water, Glycerin

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.
Brand IP Statement(s)

Hawaii Pharm Herbal Extract Highest quality since 2008

Suggested/Recommended/Usage/Directions

Suggested use: Shake well before using. For adults add about 20-30 drops (0.7-1 mL, one full squeeze of the dropper bulb) to some juice or water, up to 4 times a day.

Precautions

Warning: We recommend to seek expert medical advice before taking.

Do not use if you are allergic to any ingredients.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

Consult your physician before giving to children under 18, during pregnancy, if nursing or taking medications.

May affect the ability to drive and operate machinery. May have contraindications, can cause side effects and adverse reactions. Do not use if seal is broken or missing.

Keep out of the reach of children!

Storage

Store in a cool dry place.

Seals/Symbols

cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.

Organic Alcohol Based USA Made in United States of America

FDA Disclaimer Statement

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

General Statements

Scan this QR-code to get 15% discount on your next purchase. Limited time deal.

Formula

Lagerstroemia speciosa

Organic Alcohol Based

Formulation

Only natural ingredients Purity is laboratory tested and verified

All the raw materials are gluten-free by their nature No artificial colors, flavors, or preservatives

Not tested on animals

Organic Alcohol Based

Made in USA, Hawaii

FDA Statement of Identity

Herbal Supplement

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

See for yourself

Banaba by Hawaii Pharm label

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

Banaba 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 Banaba 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.

Banaba Leaf Extract, Dry

Interacts with
299 drugs
983 mg per serving

Banaba is a leaf extract most often used to help support healthy blood sugar, and small early studies suggest its active compound corosolic acid may m...

Banaba Leaf Extract, Dry monograph & interactions

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

Interaction report

Banaba by Hawaii Pharm Drug Interactions

Want to check YOUR meds against Banaba?

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
299Drugs
299 Moderate

Ingredients driving the most interactions

Banaba Leaf Extract, Dry 299

Individual Drug Interactions

The ingredients in Banaba interact with 299 drugs. Click any drug to see the details.

1 of the 1 ingredient in Banaba interact with drugs. Each result below shows which ingredient is responsible. Banaba Leaf Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in Banaba 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.

Banaba Leaf Extract, Dry3 drug types · 299 drugs

Antidiabetes Drugs

Theoretically, concomitant use of banaba and hypoglycemic drugs might have additive effects.
Human and animal research suggests that banaba can lower blood glucose levels.

Likelihood Probable Evidence B
Antihypertensive Drugs

Theoretically, concomitant use of banaba and antihypertensive drugs might cause additive effects.
Human and animal research suggests that banaba can lower blood pressure.

Likelihood Probable Evidence B
Organic Anion-Transporting Polypeptide Substrates (Oatp)

Theoretically, concomitant use of banaba with substrates of OATP might reduce the bioavailability of the OATP substrate.
In vitro research shows that banaba inhibits OATP, particularly OATP2B1. OATPs are expressed in the small intestine and liver and are responsible for the absorption of drugs and other compounds.

Likelihood Possible Evidence D
Banaba Leaf Extract, Dry full monograph & interactions
The maker

Brand information

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

Hawaii Pharm

See all Hawaii Pharm products
Name
Hawaii Pharm LLC
Street Address
510 Sumner St. Ste. 613
City
Honolulu
State
HI
ZipCode
96817
Phone Number
888-854-2924
Web Address
www.hawaiipharm.com
Pharmacist Counseling Corner

Banaba by Hawaii Pharm: Common Questions

Does Banaba by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, Banaba has a known interaction with 299 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Banaba 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 Banaba if I'm pregnant or nursing?
No — there isn't enough safety data. The facts advise against it during pregnancy and while breastfeeding. Talk with your doctor about what's safe for you and your baby.
Does banaba actually lower blood sugar?
Research suggests it may, but we don't have enough reliable evidence yet to say it works. The rating in our data is insufficient evidence. If you have diabetes or prediabetes, check with your doctor before trying it.
What side effects might I notice?
Banaba extract appears well tolerated overall. One product that mixed banaba with another ingredient reported dizziness, headache, tremor, weakness, and stomach upset in some people — though it's unclear which ingredient caused them. Long-term side effects aren't well studied.
Why does this product interact with so many medications?
The 299 medications involved come from three types: blood pressure drugs and diabetes drugs (because banaba may lower both), plus a large group of medications that use a transporter protein in your gut and liver. Many common drugs rely on that transporter, so the count is high even though the interaction categories are just three.
Is this product safe to use long-term?
Long-term safety hasn't been well established in the studies we have. Short-term use appears well tolerated, but if you're thinking of taking it regularly, check with your pharmacist or doctor about what's known.

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

Not sure if Banaba is safe with your meds?

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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.

Banaba label
Go deeper

The Full Monographs Behind Banaba’s Ingredients

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

Herb & supplement monograph

Banaba

Interacts with 299 drugs

Banaba is a leaf extract most often used to help support healthy blood sugar, and small early studies suggest its active compound corosolic acid may modestly lower glucose. The overall evide...

Read the full Banaba monograph →
Sources

Sources & How We Checked

Banaba'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.

Banaba 7 references
  1. Judy WV, Hari SP, Stogsdill WW, et al. Antidiabetic activity of a standardized extract (Glucosol) from Lagerstroemia speciosa leaves in Type II diabetics. A dose-dependence study. J Ethnopharmacol 2003;87:115-7. PubMed
  2. Kakuda T, Sakane I, Takihara T, et al. Hypoglycemic effect of extracts from Lagerstroemia speciosa L. leaves in genetically diabetic KK-AY mice. Biosci Biotechnol Biochem 1996;60:204-8.
  3. Fukushima, M., Matsuyama, F., Ueda, N., Egawa, K., Takemoto, J., Kajimoto, Y., Yonaha, N., Miura, T., Kaneko, T., Nishi, Y., Mitsui, R., Fujita, Y., Yamada, Y., and Seino, Y. Effect of corosolic acid on postchallenge plasma glucose levels. Diabetes Res C PubMed
  4. Yamaguchi, Y., Yamada, K., Yoshikawa, N., Nakamura, K., Haginaka, J., and Kunitomo, M. Corosolic acid prevents oxidative stress, inflammation and hypertension in SHR/NDmcr-cp rats, a model of metabolic syndrome. Life Sci 11-25-2006;79(26):2474-2479. PubMed
  5. Fuchikami H, Satoh H, Tsujimoto M, Ohdo S, Ohtani H, Sawada Y. Effects of herbal extracts on the function of human organic anion-transporting polypeptide OATP-B. Drug Metab Dispos 2006;34:577-82. PubMed
  6. Manaf A, Tjandrawinata RR, Malinda D. Insulin sensitizer in prediabetes: a clinical study with DLBS3233, a combined bioactive fraction of Cinnamomum burmanii and Lagerstroemia speciosa. Drug Des Devel Ther. 2016;10:1279-89. PubMed
  7. Tjokroprawiro A, Murtiwi S, Tjandrawinata RR. DLBS3233, a combined bioactive fraction of Cinnamomum burmanii and Lagerstroemia speciosa, in type-2 diabetes mellitus patients inadequately controlled by metformin and other oral antidiabetic agents. J Comple

See these in context on the Banaba 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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