E Zhu Ingredients & Drug Interactions
by Herbal Terra
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
E Zhu is a dietary supplement by Herbal Terra 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.
Check Your Meds Against E Zhu by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with E Zhu by Herbal Terra — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of E Zhu 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.
What’s inside
Full disclosure
This liquid contains one active ingredient: zedoary root extract, a traditional plant remedy. The inactive ingredients are alcohol, water, and glycerin, which make up the liquid base.
Does it work?
Couldn't assess
The evidence we hold does not establish that zedoary is effective for rotaviral diarrhea or high cholesterol. For both uses, the data we have rates the evidence as insufficient to draw a conclusion.
How safe is it?
Some data gaps
Zedoary is generally used in food amounts, though safety data for supplement-level doses in humans is limited. During pregnancy, it's traditionally been avoided because it may affect the uterus, and the safety evidence advises against use.
During breastfeeding, there isn't reliable safety information, so it's best avoided then too.
Meds to double-check
Moderate interaction found
If you take any medications processed by the CYP3A4 enzyme in your liver — especially tyrosine kinase inhibitors like lapatinib, sorafenib, or gefitinib — check those drugs with the tool below before using this product. Zedoary may raise their levels in your blood.
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.
This product is a single-ingredient extract with limited human safety data at supplement doses. If you're pregnant, breastfeeding, or take any medications metabolized by CYP3A4 — especially cancer drugs — talk to your pharmacist before starting.
For most other people with no drug interactions, the main question is whether the evidence supports its intended use, which at this point is unclear.
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 Mar 25, 2025.
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
General information
Key facts about E Zhu, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 7386005079948 |
| Net contents | 2 Fluid Ounce(s); 60 mL |
| Market status | On market |
| Date entered into DSLD | Mar 25, 2025 |
| DSLD ID | 325001 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Sugar Free |
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 Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Curcuma zedoaria Root Extract, Dry | 983 mg | -- |
Other ingredients: Alcohol, Water, Glycerin
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
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.
Precautions
We recommend to seek expert medical advice before taking. May have contraindications and cause adverse reaction.
Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications.
Consult a physician before giving to children under 18, before using during pregnancy, if nursing, or if you are on any medications. Keep out of the reach of children!
Do not use if you are allergic to any ingredients.
Storage
Store in a cool, dry, dark place.
FDA Disclaimer Statement
This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure or prevent any disease.
Formulation
cGMP Made in compliance with cGMP 21 CFR 111 in an FDA registered and inspected facility.
Sugar free
Expertly extracted 100% natural Premium product
Organic alcohol
No artificial ingredients, color additives, fillers or binders.
Natural Gluten free
Formula
Curcuma zedoaria
Organic alcohol
FDA Statement of Identity
Herbal Supplement
General Statements
Organic raw material.
Seals/Symbols
Made in USA
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
E Zhu by Herbal Terra label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in E Zhu 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 container60 Amounts shown are per serving.
Curcuma zedoaria Root Extract, Dry
Interacts with643 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 v...
Curcuma zedoaria Root Extract, Dry monograph & interactionsOther (inactive) ingredients: Alcohol, Water, Glycerin. These complete the product’s ingredient list but are not active constituents.
E Zhu by Herbal Terra Drug Interactions
HelloPharmacist Interaction Report
E Zhu by Herbal Terra contains zedoary root extract, which has one documented interaction concern.
The main issue is with CYP3A4 substrate drugs — a large group of medications your liver breaks down using a specific enzyme. Zedoary may slow that breakdown, raising levels of these drugs in your bloodstream.
Lab studies show it can significantly inhibit how your body metabolizes certain cancer drugs like lapatinib and sorafenib, and to a lesser extent gefitinib.
Read the full breakdown — every affected drug type, severity by severity
Although zedoary is used in food in small amounts, we don't have much human safety data for supplement doses, so the real-world risk at the dose in this product isn't fully clear. Still, if you take any medication metabolized by this enzyme — especially cancer treatments — check your exact drugs with the search tool on this page before starting.
Check your own medications below · Editorial policy · How we use AI
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 checkerIngredients driving the most interactions
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
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Ado-trastuzumab Emtansine interactionAbemaciclibVerzenio
How Abemaciclib interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Abemaciclib interactionAbiraterone
How Abiraterone interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Abiraterone Acetate interactionAcalabrutinibCalquence
How Acalabrutinib interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acalabrutinib interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, PhenyltoloxamineNorel Plus
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, Chlorpheniramine, PseudoephedrineAlka-Seltzer PLUS Liquid Gels, Children's Tylenol Cold, Codimal, Comtrex, Extra Strength Tylenol Allergy Sinus, Lorsin +3 more
How Acetaminophen, Chlorpheniramine, Pseudoephedrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Chlorpheniramine, Pseudoephedrine interactionAcetaminophen, DextromethorphanTylenol Cough Ex Strength
How Acetaminophen, Dextromethorphan interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Dextromethorphan interactionAcetaminophen, Dextromethorphan, Doxylamine, PseudoephedrineVicks NyQuil
How Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Dextromethorphan, Doxylamine, Pseudoephedrine interactionAcetaminophen, Dextromethorphan, Guaifenesin, PhenylephrineConar-A
How Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interacts with E Zhu — through 1 ingredient. Tap an ingredient for the detail:
Curcuma Zedoaria Root Extract, DryCytochrome P450 3a4 (cyp3a4) Substrates Moderate
Interaction Summary
Theoretically, zedoary might increase levels of drugs metabolized by CYP3A4.
Read the full Curcuma Zedoaria Root Extract, Dry + Acetaminophen, Dextromethorphan, Guaifenesin, Phenylephrine interactionEach 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, Dry
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.
Brand information
Manufacturer and brand details for E Zhu, from the product label.
Herbal Terra
See all Herbal Terra products- Name
- Herbal Terra LLC
- Phone Number
- +18083857868
- Web Address
- herbalterra.com
E Zhu by Herbal Terra: Common Questions
Does E Zhu by Herbal Terra interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take E Zhu while pregnant?
Is it safe while breastfeeding?
Does E Zhu actually work for diarrhea or high cholesterol?
What's zedoary, and what is it supposed to do?
Are there any side effects reported from zedoary?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if E Zhu is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
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.
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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- 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.
- 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
- 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
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