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Dietary supplement

E Zhu Ingredients & Drug Interactions

by Hawaii Pharm

E Zhu 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 E Zhu 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

E Zhu is a dietary supplement by Hawaii Pharm with 1 active ingredient. Its ingredients are commonly taken for digestive upset and bloating, loss of appetite, menstrual discomfort.Based on those ingredients, 643 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Curcuma zedoaria Root 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 E Zhu by Hawaii Pharm

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

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HelloPharmacist Scorecard of E Zhu 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 11, 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.

E Zhu is a liquid extract containing one active ingredient: zedoary root. Zedoary is a tropical plant in the ginger family, traditionally used in Asian medicine.

The liquid also contains alcohol, water, and glycerin as inactive ingredients to preserve and deliver the extract.

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 Zedoary product and its label doesn't state a use — see Zedoary'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 evidence for zedoary is limited. Our data shows insufficient reliable evidence to rate it for rotaviral diarrhea or high cholesterol — the two uses we have information on.

That doesn't mean it doesn't work; it means large, well-designed studies haven't been done yet or the results so far aren't conclusive enough to make a claim.

The evidence, ingredient by ingredient Zedoary

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 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.

Zedoary is generally well tolerated at the small amounts used in food, though human safety data at supplement doses is sparse. The safety data advises against zedoary in pregnancy because it may affect the uterus and isn't proven safe.

There isn't enough reliable safety information for breastfeeding, so it's best to avoid it while nursing. Talk with your pharmacist or doctor before using this product if you're pregnant, planning to become pregnant, or breastfeeding.

Side effects, ingredient by ingredient Zedoary

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 — Zedoary.
  • The most serious interaction on file is rated Moderate.
  • For scale: 644 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 E Zhu, double-check any medications your liver processes — especially blood pressure drugs, statins for cholesterol, immunosuppressants, antihistamines, and cancer medications like lapatinib, sorafenib, or gefitinib. Zedoary can slow how your body clears these drugs and raise their levels.

This is a Moderate severity interaction, so it's important to verify your specific medications 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 assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.

E Zhu may interest people looking for traditional herbal support, but the evidence for what it actually does is still unclear. The real issue is its interaction with drugs your liver processes — a huge number of common medications fall into this category.

Check your medications with the tool on this page before starting, and talk with your pharmacist about whether it's right for you.

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 E Zhu, straight from the product label.

Brand Hawaii Pharm
Barcode (UPC) 840253619457
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Oct 24, 2023
DSLD ID 301559
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 E Zhu 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
840253619457
IngredientAmount% DV
Curcuma zedoaria Root 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

Curcuma zedoaria

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

E Zhu by Hawaii Pharm label

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

E Zhu 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 E Zhu 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.

Curcuma zedoaria Root Extract, Dry

Interacts with
643 drugs
983 mg per serving

Zedoary is a ginger-family root used in traditional Asian and Indian medicine, mostly for digestion and as a spice. Scientific evidence in humans is v...

Curcuma zedoaria Root Extract, Dry monograph & interactions

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

Interaction report

E Zhu by Hawaii Pharm Drug Interactions

Want to check YOUR meds against E Zhu?

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
643Drugs
643 Moderate

Ingredients driving the most interactions

Curcuma zedoaria Root Extract, Dry 643

Individual Drug Interactions

The ingredients in E Zhu interact with 643 drugs. Click any drug to see the details.

1 of the 1 ingredient in E Zhu interact with drugs. Each result below shows which ingredient is responsible. Curcuma zedoaria Root Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in E Zhu 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.

Curcuma zedoaria Root Extract, Dry1 drug type · 643 drugs

Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
In-vitro research shows that a methanol extract of zedoary strongly inhibits the CYP3A4 metabolism of the tyrosine kinase inhibitors lapatinib and sorafenib, and to a lesser extent, gefitinib.

Likelihood Possible Evidence D
Curcuma zedoaria Root Extract, Dry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for E Zhu, 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

E Zhu by Hawaii Pharm: Common Questions

Does E Zhu by Hawaii Pharm interact with any medications?
Yes. Based on its ingredients, E Zhu has a known interaction with 643 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
E Zhu 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 E Zhu if I'm pregnant or breastfeeding?
No. The safety data advises against zedoary in pregnancy because it may affect your uterus, and there isn't enough reliable information about breastfeeding. Talk with your doctor or pharmacist before using this product if you're pregnant, planning pregnancy, or nursing.
What is zedoary actually for?
Zedoary has been used traditionally for rotaviral diarrhea and high cholesterol, but our data shows we don't have enough reliable evidence yet to confirm it works for either. More research is needed.
Is this product safe to use long-term?
Human safety data for zedoary at supplement doses is limited. While it's generally used in food amounts without problems, we don't know as much about safety when taken as a concentrated supplement over time. Talk with your pharmacist about how long you plan to take it.
What's in the liquid besides the zedoary?
The extract is delivered in alcohol, water, and glycerin. These are inactive ingredients used to preserve the herb and make the liquid form work.

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

Not sure if E Zhu 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.

E Zhu label
Go deeper

The Full Monographs Behind E Zhu’s Ingredients

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

Herb & supplement monograph

Zedoary

Interacts with 643 drugs

Zedoary is a ginger-family root used in traditional Asian and Indian medicine, mostly for digestion and as a spice. Scientific evidence in humans is very limited, so its benefits are not wel...

Read the full Zedoary monograph →
Sources

Sources & How We Checked

E Zhu'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 5 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.

Zedoary 5 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Tariq S, Imran M, Mushtaq Z, Asghar N. Phytopreventive antihypercholesterolemic and antilipidemic perspectives of zedoary (Curcuma Zedoaria Roscoe) herbal tea. Lipids Health Dis 2016;15:39. doi: 10.1186/s12944-016-0210-y.
  4. Rodseeda C, Yamanont P, Pinthong D, Korprasertthaworn P. Inhibitory effects of Thai herbal extracts on the cytochrome P450 3A-mediated the metabolism of gefitinib, lapatinib and sorafenib. Toxicol Rep 2022;9:1846-1852. PubMed
  5. Niu LQ, Xiao L, Cai QH, et al. Comparative effectiveness of Chinese herbal injections treating for rotavirus enteritis in children: A systematic review and Bayesian network meta-analysis. Integr Med Res 2023;12(2):100944. PubMed

See these in context on the Zedoary 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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