Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Rehmannia Alcohol Free Ingredients & Drug Interactions

by Herbal Terra

Rehmannia Alcohol Free 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 Rehmannia Alcohol Free 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

Rehmannia Alcohol Free is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for kidney and adrenal support, anemia and blood building (traditional), inflammatory conditions.Based on those ingredients, 258 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Rehmannia Root Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Rehmannia Alcohol Free by Herbal Terra

Ask about any prescription or over-the-counter medication and we check it for interactions with Rehmannia Alcohol Free by Herbal Terra — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Rehmannia Alcohol Free 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.

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.

This product contains one active ingredient: rehmannia root extract. Rehmannia is used in traditional herbal medicine, primarily for support in chronic kidney disease, where it's considered possibly effective based on available evidence.

The other ingredients are glycerin and water, which are inactive components that help deliver the extract.

Does it work?

Moderate evidence
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

This product doesn't appear to be marketed for a specific use, so we graded Rehmannia's overall clinical evidence instead.

Moderate

Some clinical evidence supports Rehmannia for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Chronic kidney disease (CKD) — rated "Possibly Effective" (Natural Medicines).

Rehmannia shows possibly effective evidence for chronic kidney disease. For other uses listed—aplastic anemia, atopic disease (eczema and allergies), osteoporosis, diabetes, and diabetic kidney disease—the evidence isn't established in our data.

That doesn't mean it doesn't work; it means reliable human studies are lacking.

The evidence, ingredient by ingredient Rehmannia

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.

Rehmannia is used in traditional medicine, but human safety data are limited and product quality varies from maker to maker. No adverse effects were reported in the data we hold.

The safety information advises against use during pregnancy and breastfeeding because there isn't enough data to know it's safe for you or your baby.

Side effects, ingredient by ingredient Rehmannia

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 — Rehmannia.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 258 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 pharmacist if you're on blood pressure medications (antihypertensives) or diabetes medications. Rehmannia may lower both blood pressure and blood sugar, and combining it with drugs that do the same could cause your pressure or sugar to drop too far.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and some safety-information gaps remain.

Rehmannia Alcohol Free may be worth considering if you're exploring support for chronic kidney disease, but it's not for you if you take blood pressure or blood sugar medications without checking first. Pregnant and breastfeeding people should avoid it.

Talk with your pharmacist before starting, especially if you're on any prescription drugs.

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

At a glance

General information

Key facts about Rehmannia Alcohol Free, straight from the product label.

Brand Herbal Terra
Barcode (UPC) 7238630540390
Net contents 2 Fluid Ounce(s); 60 mL
Market status On market
Date entered into DSLD Mar 25, 2025
DSLD ID 324495
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
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 Rehmannia Alcohol Free by Herbal Terra, 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:
1 mL
Maximum serving Sizes:
1 mL
Servings per container
60
UPC/BARCODE
7238630540390
IngredientAmount% DV
Rehmannia Root Extract, Dry1156 mg--

Other ingredients: Glycerin, 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.
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

No alcohol (ethyl), artificial ingredients, color additives, fillers or binders.

Natural Gluten free

Formula

Rehmania glutinosa

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

Made in USA

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

See for yourself

Rehmannia Alcohol Free by Herbal Terra label

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

Rehmannia Alcohol Free 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 Rehmannia Alcohol Free 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.

Rehmannia Root Extract, Dry

Interacts with
258 drugs
1156 mg per serving Form: Rehmannia glutinosa Root Extract, Dry

Rehmannia is a root used for centuries in Traditional Chinese Medicine, often to 'tonify' the kidneys and support energy or blood health. Human eviden...

Rehmannia Root Extract, Dry monograph & interactions

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

Interaction report

Rehmannia Alcohol Free by Herbal Terra Drug Interactions

Want to check YOUR meds against Rehmannia Alcohol Free?

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
258Drugs
258 Moderate

Ingredients driving the most interactions

Rehmannia Root Extract, Dry 258

Individual Drug Interactions

The ingredients in Rehmannia Alcohol Free interact with 258 drugs. Click any drug to see the details.

1 of the 1 ingredient in Rehmannia Alcohol Free interact with drugs. Each result below shows which ingredient is responsible. Rehmannia Root Extract, Dry

Each ingredient & the kinds of drugs it affects

For each ingredient in Rehmannia Alcohol Free 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.

Rehmannia Root Extract, Dry2 drug types · 258 drugs

Antidiabetes Drugs

Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research shows that rehmannia may have hypoglycemic effects.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, rehmannia might increase the risk of hypotension when taken with antihypertensive drugs.
Animal research shows that rehmannia may have hypotensive effects. Laboratory research shows that formulations of dried and processed rehmannia root inhibit angiotensin-converting enzyme (ACE).

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

Brand information

Manufacturer and brand details for Rehmannia Alcohol Free, from the product label.

Herbal Terra

See all Herbal Terra products
Name
Herbal Terra LLC
Phone Number
+18083857868
Web Address
herbalterra.com
Pharmacist Counseling Corner

Rehmannia Alcohol Free by Herbal Terra: Common Questions

Does Rehmannia Alcohol Free by Herbal Terra interact with any medications?
Yes. Based on its ingredients, Rehmannia Alcohol Free has a known interaction with 258 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Rehmannia Alcohol Free 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 this if I'm pregnant or breastfeeding?
No. The safety data advises against it during pregnancy and breastfeeding because there isn't enough information to know it's safe for you or your baby. Talk with your OB/GYN or pharmacist about other options.
Does rehmannia actually work for kidney disease?
For chronic kidney disease, the evidence says possibly effective—meaning there's some support, but it's not airtight. For the other conditions listed on the label, we don't have enough reliable human data to rate them either way.
What is rehmannia root extract, and why is it in this product?
Rehmannia is a plant root used in traditional herbal medicine, especially in Chinese medicine. It's included here primarily because of its traditional use and the modest evidence for chronic kidney disease support.
Are there any side effects I should know about?
No adverse effects were reported in the data we hold, but human safety data overall are limited. Because it's not well studied, new or unexpected side effects can't be ruled out.
Why does the label mention so many conditions if the evidence is weak?
Those are uses that rehmannia has been studied for or used for traditionally. The label lists them honestly, along with the evidence rating—some show promise, but others lack the reliable human studies needed to confirm they work.

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

Not sure if Rehmannia Alcohol Free 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.

Rehmannia Alcohol Free label
Go deeper

The Full Monographs Behind Rehmannia Alcohol Free’s Ingredients

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

Herb & supplement monograph

Rehmannia

Interacts with 258 drugs

Rehmannia is a root used for centuries in Traditional Chinese Medicine, often to 'tonify' the kidneys and support energy or blood health. Human evidence for most modern uses is limited, so i...

Read the full Rehmannia monograph →
Sources

Sources & How We Checked

Rehmannia Alcohol Free'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 3 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.

Rehmannia 3 references
  1. Zhang R, Zhou J, Jia Z, et al. Hypoglycemic effect of Rehmannia glutinosa oligosaccharide in hyperglycemic and alloxan-induced diabetic rats and its mechanism. J Ethnopharmacol 2004;90:39-43. PubMed
  2. Zhang RX, Li MX, Jia ZP. Rehmannia glutinosa: review of botany, chemistry and pharmacology. J Ethnopharmacol 2008;117(2):199-214. PubMed
  3. Chao CH, Hsu JL, Chen MF, et al. Anti-hypertensive effects of Radix Rehmanniae and its active ingredients. Nat Prod Res. 2020;34(11):1547-1552.

See these in context on the Rehmannia 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

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team