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Dietary supplement

Sheep Sorrel Powder Ingredients & Drug Interactions

by TerraVita Premium Collection

Sheep Sorrel Powder label
See full label image
Powder 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 Sheep Sorrel Powder 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

Sheep Sorrel Powder is a dietary supplement by TerraVita Premium Collection with 1 active ingredient. Its ingredients are commonly taken for sinus and respiratory congestion, digestive upset, fever.Based on those ingredients, 169 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Sheep Sorrel powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Sheep Sorrel Powder by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Sheep Sorrel Powder by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Sheep Sorrel Powder by TerraVita Premium Collection

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 Sep 10, 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: sheep sorrel powder. Sheep sorrel is a plant traditionally used in herbal preparations, and this powder form delivers the whole plant material.

There are no inactive ingredients listed.

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 Sorrel product and its label doesn't state a use — see Sorrel'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 sheep sorrel isn't established in our data. Studies have looked at its use for bronchitis, breast cancer, and rhinosinusitis (sinus inflammation), but the data we hold rates all of these as having insufficient reliable evidence to establish whether it works.

If you're considering it for a specific health concern, talk with your doctor or pharmacist about whether the research supports its use for your situation.

The evidence, ingredient by ingredient Sorrel

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.

Sheep sorrel is generally well tolerated in food amounts, but the powder form is more concentrated. The main safety concern is its high oxalate content — in larger or concentrated doses, oxalates can build up in your system and potentially damage your kidneys, a risk that increases with repeated use.

One case of acute kidney inflammation was reported in a child after consuming an unknown amount of wild sorrel. Additionally, sorrel can trigger allergic reactions — especially in people sensitive to weed pollen, where cross-reactivity may occur in up to 19% of those with pollen allergies.

When combined with other herbs, sorrel has been reported to cause nausea and an unpleasant aftertaste. For pregnancy and breastfeeding, the safety data rates sorrel as possibly safe, though concentrated supplements during breastfeeding are not well studied — discuss use with your doctor or pharmacist for personalized guidance.

Side effects, ingredient by ingredient Sorrel

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 — Sorrel.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 169 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 or doctor if you take blood thinners or antiplatelet drugs — sorrel might add to their effects. Also flag any medications absorbed through the OATP system, including fexofenadine (Allegra) and many others, since sorrel may reduce how well your body absorbs them.

Use the medication search tool on this page to verify your exact drugs.

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.

Sheep sorrel powder is a single-ingredient herbal product with traditional uses, but the evidence for its effectiveness isn't well established in our data. Its main concern is potential interaction with blood thinners and with how your body absorbs certain medications, plus the risk of kidney issues from its oxalate content with long-term concentrated use.

Before starting, talk with your pharmacist or doctor, especially if you take blood thinners, allergy medications, or any other 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 Jun 22, 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 Sheep Sorrel Powder, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435115838
Net contents 4 Ounce(s)
Market status On market
Date entered into DSLD Jun 22, 2023
DSLD ID 290406
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
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 Sheep Sorrel Powder by TerraVita Premium Collection, 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:
0.25 Teaspoon(s)
Maximum serving Sizes:
0.25 Teaspoon(s)
Servings per container
113
UPC/BARCODE
064435115838
IngredientAmount% DV
Sheep Sorrel powder1000 mg--

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.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2004 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Stir 1/4 of a teaspoon into a glass of water and consume 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product not intended to diagnose, treat, cure, or prevent any disease.

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

See for yourself

Sheep Sorrel Powder by TerraVita Premium Collection label

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

Sheep Sorrel Powder 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 Sheep Sorrel Powder by TerraVita Premium Collection

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

Serving size0.25 Teaspoon(s) Dosage formPowder Servings per container113 Amounts shown are per serving.

Sheep Sorrel powder

Interacts with
169 drugs
1000 mg per serving

Sorrel is a tangy, leafy herb used in cooking and traditional medicine, often for congestion, digestion, and inflammation. Solid human evidence for an...

Sheep Sorrel powder monograph & interactions
Interaction report

Sheep Sorrel Powder by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Sheep Sorrel Powder?

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
169Drugs
169 Moderate

Ingredients driving the most interactions

Sheep Sorrel powder 169

Individual Drug Interactions

The ingredients in Sheep Sorrel Powder interact with 169 drugs. Click any drug to see the details.

1 of the 1 ingredient in Sheep Sorrel Powder interact with drugs. Each result below shows which ingredient is responsible. Sheep Sorrel powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Sheep Sorrel Powder 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.

Sheep Sorrel powder3 drug types · 169 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, sorrel might cause additive effects and side effects when used with anticoagulant or antiplatelet drugs.
In vitro, sorrel has been shown to inhibit platelet aggregation. However, this effect has not been reported in humans.

Likelihood Possible Evidence D
Fexofenadine (Allegra)

Sorrel might reduce the effectiveness of fexofenadine by reducing its absorption from the gut.
In vitro research shows that an ethanol extract of sorrel inhibits organic anion-transporting polypeptide 1A2 (OATP1A2), which transports fexofenadine from the intestine into cells. In rats, concomitant administration of sorrel extract with fexofenadine reduces oral absorption of fexofenadine and the area under the plasma concentration-time curve (AUC).

Likelihood Likely Evidence D
Organic Anion-Transporting Polypeptide Substrates (Oatp)

Sorrel might reduce the effectiveness of OATP substrates by reducing their absorption from the gut.
In vitro research shows that sorrel inhibits OATP1A2. Theoretically it may inhibit other OATPs. The OATPs are expressed in the small intestine and liver and transport drugs into cells. Inhibition of OATP may reduce the bioavailability of oral drugs that are substrates of OATP.

Likelihood Possible Evidence D
Sheep Sorrel powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Sheep Sorrel Powder, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Sheep Sorrel Powder by TerraVita Premium Collection: Common Questions

Does Sheep Sorrel Powder by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Sheep Sorrel Powder has a known interaction with 169 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Sheep Sorrel Powder 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.
Does sheep sorrel actually work for anything?
The evidence isn't established in our data. Research has looked at sorrel for bronchitis, breast cancer, and sinus inflammation, but we don't have reliable evidence that it's effective for any of these. Talk with your doctor about whether it's right for your specific concern.
Is it safe to use long-term?
Long-term safety isn't well established. The main concern is the sorrel's high oxalate content — in concentrated doses over time, oxalates can accumulate and potentially damage your kidneys. Stick to short-term use and discuss duration with your pharmacist or doctor.
Can I take this if I'm pregnant or breastfeeding?
The safety data rates sheep sorrel as possibly safe during pregnancy and breastfeeding, but concentrated supplements during breastfeeding haven't been well studied. Talk with your doctor or pharmacist before using it — they can give you personalized advice based on your situation.
What are the side effects?
Sorrel can trigger allergic reactions — especially in people allergic to weed pollen. When combined with other herbs, it's been reported to cause nausea and an unpleasant aftertaste. Oxalates in sorrel can also cause kidney problems if consumed in large amounts over time.
Will this interfere with my allergy medication?
Yes — sorrel can reduce how well fexofenadine (Allegra) and similar OATP-dependent drugs are absorbed. Check with your pharmacist or doctor before combining them, and use the medication search tool on this page with your specific drugs.

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

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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.

Sheep Sorrel Powder label
Go deeper

The Full Monographs Behind Sheep Sorrel Powder’s Ingredients

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

Herb & supplement monograph

Sorrel

Interacts with 169 drugs

Sorrel is a tangy, leafy herb used in cooking and traditional medicine, often for congestion, digestion, and inflammation. Solid human evidence for any health benefit is limited, and its hig...

Read the full Sorrel monograph →
Sources

Sources & How We Checked

Sheep Sorrel Powder'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 8 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.

Sorrel 8 references
  1. Neubauer N, Marz RW. Placebo-controlled, randomized, double-blind, clincal trial with Sinupret sugar coated tablets on the basis of a therapy with antibiotics and decongestant nasal drops in acute sinusitis. Phytomedicine 1994;1:177-81.
  2. Marz RW, Ismail C, Popp MA. Action profile and efficacy of a herbal combination preparation for the treatment of sinusitis. Wien Med Wochenschr 1999;149:202-8.
  3. Zick, S. M., Sen, A., Feng, Y., Green, J., Olatunde, S., and Boon, H. Trial of Essiac to ascertain its effect in women with breast cancer (TEA-BC). J Altern Complement Med 2006;12(10):971-980. PubMed
  4. Sanz, P. and Reig, R. Clinical and pathological findings in fatal plant oxalosis. A review. Am J Forensic Med Pathol. 1992;13(4):342-345. PubMed
  5. Gniazdowska, B., Doroszewska, G., and Doroszewski, W. [Hypersensitivity to weed pollen allergens in the region of Bygdoszcz]. Pneumonol.Alergol.Pol. 1993;61(7-8):367-372.
  6. Selçuk SN, Gülhan B, Düzova A, Teksam Ö. Acute tubulointerstitial nephritis due to large amount of sorrel (Rumex acetosa) intake. Clin Toxicol (Phila) 2015;53(5):497. PubMed
  7. Ahn JH, Kim J, Rehman NU, Kim HJ, Ahn MJ, Chung HJ. Effect of Rumex Acetosa Extract, a Herbal Drug, on the Absorption of Fexofenadine. Pharmaceutics. 2020;12(6):E547. PubMed
  8. Jeong D, Irfan M, Lee DH, Hong SB, Oh JW, Rhee MH. Rumex acetosa modulates platelet function and inhibits thrombus formation in rats. BMC Complement Med Ther. 2020;20(1):98. PubMed

See these in context on the Sorrel 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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