Restharrow Ingredients & Drug Interactions
by Herbal Terra
What is this page for?
First and foremost: checking Restharrow 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
Restharrow is a dietary supplement by Herbal Terra with 1 active ingredient. Its ingredients are commonly taken for increasing urine flow (mild diuretic), flushing the urinary tract, mild bladder and kidney complaints.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are certified organic Restharrow (Ononis spinosa) dried root liquid extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Restharrow by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with Restharrow 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
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HelloPharmacist Scorecard of Restharrow 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 product contains one active ingredient: certified organic spiny restharrow root as a liquid extract. The extract is prepared using a menstruum (the liquid used to extract the herb's compounds).
Spiny restharrow has a long history in herbal medicine, particularly for urinary and kidney health, though the strength of evidence for those uses remains limited in humans.
Does it work?
Insufficient evidence
The evidence we hold does not establish reliable effectiveness for any of the conditions this product is traditionally used for—benign prostatic hyperplasia (enlarged prostate), kidney stones, urinary tract infections, or gastritis. All four have been rated as having insufficient reliable evidence to support their use.
That doesn't mean the herb doesn't work; it means human studies are lacking or inconclusive.
How safe is it?
Some data gaps
Spiny restharrow is generally regarded as traditionally used, but human safety data are limited, so adverse effects in real-world use aren't well documented. The safety data advises against this product during pregnancy and while breastfeeding, since there isn't enough information to know it's safe in those situations.
If you're pregnant, nursing, or planning to become pregnant, talk with your doctor or pharmacist before taking it.
Meds to double-check
Moderate interaction found
If you take lithium, talk to your pharmacist or doctor before starting this product—spiny restharrow may raise lithium levels in your blood and increase its effects. No other interactions are documented for the ingredients we could check, but that's not a guarantee none exist.
The bottom line
Scorecard at a glanceFully disclosed formula with insufficient evidence for its stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.
Restharrow is a traditional herbal remedy for urinary and kidney concerns, but the clinical evidence supporting it isn't solid yet. If you take lithium or any other medications, check with your pharmacist first—lithium users especially need to be cautious.
Pregnant and nursing people should avoid it.
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 Sep 25, 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
General information
Key facts about Restharrow, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 0617503378422 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2020 |
| DSLD ID | 234220 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Organic, 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 Restharrow by Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| certified organic Restharrow (Ononis spinosa) dried root liquid extract | 970 mg | -- |
Other ingredients: Menstruum
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.
Formulation
Origin of plant material: Macedonia.
Manufactured in the USA in an FDA registered facility
Sugar free
Dried herb/menstruum ratio: 1:3 Expertly extracted Laboratory tested 330 mg/1 mL Premium product Super concentrated liquid herbal extract
Non GMO
No artificial ingredients, GMO, gluten, color additives, fillers, preservatives or binders. Natural Gluten Free
Suggested/Recommended/Usage/Directions
Direction 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. We recommend to seek expert medical advice before taking this or any other herbal supplements.
FDA Disclaimer Statement
Notice This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.
Precautions
Caution May have contraindications.
Do not use if you are allergic to any ingredients.
Consult a physician before using during pregnancy, if nursing, or if you are on any medications.
Keep out of the reach of children.
Storage
Store in a cool, dry, dark place.
Formula
Ononis spinosa
FDA Statement of Identity
Herbal Supplement
Seals/Symbols
Made in USA Made in an FDA registered facility Natural Gluten Free
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Restharrow 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 Restharrow 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 container120 Amounts shown are per serving.
Certified organic Restharrow (Ononis spinosa) dried root liquid extract
Interacts with1 drug
Spiny Restharrow is a traditional European herb whose root has long been used as a mild diuretic to help flush the urinary tract. Solid human evidence...
Certified organic Restharrow (Ononis spinosa) dried root liquid extract monograph & interactionsOther (inactive) ingredients: Menstruum. These complete the product’s ingredient list but are not active constituents.
Restharrow by Herbal Terra Drug Interactions
HelloPharmacist Interaction Report
Herbal Terra's Restharrow is a single-ingredient liquid extract of spiny restharrow root.
It interacts with one medication: lithium, a mood stabilizer used for bipolar disorder.
Read the full breakdown — every affected drug type, severity by severity
Spiny restharrow is thought to have diuretic properties—meaning it may increase urine output. Because of this potential effect, the herb could theoretically raise lithium levels in your blood and strengthen its effects, which is a concern since lithium has a narrow therapeutic window (too much causes toxicity).
Altogether, these interactions span 1 individual medication.
If you take lithium, do not start this product without talking to your prescriber or pharmacist first. We could not find interaction data for other common medications, but that doesn't mean interactions don't exist—it just means they haven't been studied or documented in our records.
Use the medication checker below to look up your specific prescriptions before you take Restharrow.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Restharrow?
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 Restharrow interact with 1 drug. Click any drug to see the details.
1 of the 1 ingredient in Restharrow interact with drugs. Each result below shows which ingredient is responsible. certified organic Restharrow (Ononis spinosa) dried root liquid extract
Lithium Carbonate (prescription Drug)Eskalith, Lithium Carbonate
How Lithium Carbonate (prescription Drug) interacts with Restharrow — through 1 ingredient. Tap an ingredient for the detail:
Certified Organic Restharrow (ononis Spinosa) Dried Root Liquid ExtractLithium Moderate
Interaction Summary
Theoretically, spiny restharrow might increase the levels and clinical effects of lithium.
Read the full Certified Organic Restharrow (ononis Spinosa) Dried Root Liquid Extract + Lithium Carbonate (prescription Drug) interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Restharrow 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 Restharrow (Ononis spinosa) dried root liquid extract
Lithium
Theoretically, spiny restharrow might increase the levels and clinical effects of lithium.
Spiny restharrow is thought to have diuretic properties. Although animal studies suggest that spiny restharrow reduces edema, diuretic activity has not been reported or evaluated in humans. Theoretically, due to these potential diuretic effects, spiny restharrow might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.
Brand information
Manufacturer and brand details for Restharrow, from the product label.
Restharrow by Herbal Terra: Common Questions
Does Restharrow by Herbal Terra interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is restharrow used for?
Does this product have any side effects?
Can I take this if I'm pregnant or breastfeeding?
Is this product just restharrow, or does it contain other ingredients?
Does restharrow interact with my medications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Restharrow 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 Restharrow’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Restharrow'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 2 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.
Spiny Restharrow 2 references
- Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
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