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Dietary supplement

Gravel Root Vanilla Flavor Ingredients & Drug Interactions

by TerraVita

Gravel Root Vanilla Flavor 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 Gravel Root Vanilla Flavor 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

Gravel Root Vanilla Flavor is a dietary supplement by TerraVita with 1 active ingredient. Its ingredients are commonly taken for kidney stones, urinary tract complaints, fluid retention.Based on those ingredients, 88 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Gravel Root Glycerite Liquid Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Gravel Root Vanilla Flavor by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Gravel Root Vanilla Flavor by TerraVita — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Gravel Root Vanilla Flavor by TerraVita

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: Gravel Root Glycerite Liquid Extract. It's a liquid form made with glycerin, which is also listed as an inactive ingredient along with vanilla flavor for taste.

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 Gravel Root product and its label doesn't state a use — see Gravel Root'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 product facts we have on file don't include effectiveness ratings for gravel root, so we can't tell you from our data whether it's proven to work for any particular purpose.

The evidence, ingredient by ingredient Gravel Root

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.

Here's what you need to know: gravel root carries real safety concerns. It contains pyrrolizidine alkaloids—compounds that can damage your liver and lungs, especially with repeated or long-term use.

The safety data is limited, and chronic exposure to plants with these alkaloids has been linked to a serious liver condition called veno-occlusive disease, which can cause belly pain, vomiting, diarrhea, belly swelling, and liver enlargement within weeks. Because of these risks and insufficient safety information, this product is not recommended during pregnancy or while breastfeeding.

If you're considering it, talk with your pharmacist or doctor first—and keep use short-term and cautious.

Side effects, ingredient by ingredient Gravel Root

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 — Gravel Root.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 89 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.

Check with us before taking this product if you use lithium (for mood disorders) or CYP3A4-inducing drugs like carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, or rifabutin (Mycobutin)—these are Moderate-severity interactions that may need your dose adjusted or the product avoided.

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 safety information is well characterized.

Gravel Root Vanilla Flavor carries real risks of liver and lung damage due to its alkaloid content, and limited safety data makes it a product to approach carefully. If you take lithium or any seizure or anti-TB medication, you need to check interactions before starting.

Talk to your pharmacist before use, especially if you're pregnant, breastfeeding, or have any liver concerns.

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 Dec 13, 2022.

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 Gravel Root Vanilla Flavor, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435164034
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 281530
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 Gravel Root Vanilla Flavor by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435164034
IngredientAmount% DV
Gravel Root Glycerite Liquid Extract0.13 mL--

Other ingredients: Glycerin, Vanilla Flavor

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)

Copyright 2006 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Vanilla Flavored Glycerite liquid extract (1:5)

Formulation

Alcohol free

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Gravel Root Vanilla Flavor by TerraVita label

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

Gravel Root Vanilla Flavor 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 Gravel Root Vanilla Flavor by TerraVita

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Gravel Root Glycerite Liquid Extract

Interacts with
88 drugs
0.13 mL per serving

Gravel Root is a traditional North American herb long used by herbalists for kidney stones and urinary problems, but there is very little modern scien...

Gravel Root Glycerite Liquid Extract monograph & interactions

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

Interaction report

Gravel Root Vanilla Flavor by TerraVita Drug Interactions

Want to check YOUR meds against Gravel Root Vanilla Flavor?

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
88Drugs
88 Moderate

Ingredients driving the most interactions

Gravel Root Glycerite Liquid Extract 88

Individual Drug Interactions

The ingredients in Gravel Root Vanilla Flavor interact with 88 drugs. Click any drug to see the details.

1 of the 1 ingredient in Gravel Root Vanilla Flavor interact with drugs. Each result below shows which ingredient is responsible. Gravel Root Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Gravel Root Vanilla Flavor 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.

Gravel Root Glycerite Liquid Extract2 drug types · 88 drugs

Cytochrome P450 3A4 (Cyp3A4) Inducers

Hepatotoxic pyrrolizidine alkaloids (PA) are substrates of cytochrome P450 3A4 (CYP3A4). Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites. Some drugs that induce CYP3A4 include carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, rifabutin (Mycobutin), and others.

Likelihood Possible Evidence D
Lithium

Gravel root is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, gravel root might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Gravel Root Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Gravel Root Vanilla Flavor, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Gravel Root Vanilla Flavor by TerraVita: Common Questions

Does Gravel Root Vanilla Flavor by TerraVita interact with any medications?
Yes. Based on its ingredients, Gravel Root Vanilla Flavor has a known interaction with 88 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Gravel Root Vanilla Flavor 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 while pregnant or breastfeeding?
No. The safety data rates gravel root as likely unsafe in both pregnancy and lactation. If you're pregnant, planning to become pregnant, or breastfeeding, don't use this product without first talking to your doctor or pharmacist.
What are the side effects I should watch for?
The main risk is liver and lung damage from the pyrrolizidine alkaloids in gravel root. With sub-acute exposure, watch for belly pain, vomiting, diarrhea, belly swelling, and unusual liver enlargement. These can show up within days to weeks. If you notice any of these, stop and contact your doctor or pharmacist right away.
How long can I safely use this?
The limited safety data means it should be used cautiously and short-term only—not long-term or regularly. Talk to your pharmacist about what 'short-term' means for your specific situation before you start.
Why do I need to be careful if I take lithium?
Gravel root has diuretic properties that may reduce how your kidneys clear lithium from your body, causing levels to build up to dangerous amounts. If you take lithium, your doctor may need to adjust your dose or you may need to avoid this product altogether.
What's in this product besides the active ingredient?
The active ingredient is Gravel Root Glycerite Liquid Extract. It also contains glycerin (which helps preserve and suspend the extract) and vanilla flavor. There are no other active ingredients.

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

Not sure if Gravel Root Vanilla Flavor 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.

Gravel Root Vanilla Flavor label
Go deeper

The Full Monographs Behind Gravel Root Vanilla Flavor’s Ingredients

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

Herb & supplement monograph

Gravel Root

Interacts with 88 drugs

Gravel Root is a traditional North American herb long used by herbalists for kidney stones and urinary problems, but there is very little modern scientific evidence to support these uses. Be...

Read the full Gravel Root monograph →
Sources

Sources & How We Checked

Gravel Root Vanilla Flavor'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.

Gravel Root 5 references
  1. WHO working group. Pyrrolizidine alkaloids. Environmental Health Criteria, 80. WHO: Geneva, 1988.
  2. Stickel F, Seitz HK. The efficacy and safety of comfrey. Public Health Nutr 2000;3:501-8. PubMed
  3. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46. PubMed
  4. Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
  5. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20. PubMed

See these in context on the Gravel Root 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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