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Dietary supplement

Sheep Sorrel 450 mg Ingredients & Drug Interactions

by TerraVita Premium Collection

Sheep Sorrel 450 mg label
See full label image
Capsule 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 450 mg 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 450 mg 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. 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 450 mg by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Sheep Sorrel 450 mg by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Sheep Sorrel 450 mg 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, 450 mg per capsule. Sheep sorrel is a plant used traditionally in herbal supplements.

The capsule also contains two inactive ingredients — gelatin and water — which serve as the capsule material and filler.

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.

We hold effectiveness ratings for sheep sorrel against bronchitis, breast cancer, and rhinosinusitis (sinus inflammation). For all three conditions, the evidence is currently insufficient to rate.

That means either we don't have solid human trial data yet, or the data that exists is too limited to say whether it works. If you're considering this supplement for one of these uses, talk with your doctor or pharmacist about what the evidence actually shows for your specific 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 supplement form raises some concerns. The main worry is its high oxalate content — in concentrated doses, oxalates can be absorbed into your system and potentially damage your kidneys.

One case of kidney inflammation has been reported in a child who consumed wild sorrel. Additionally, some people may experience allergic reactions if they're sensitive to weed pollen, and when combined with other herbs, sorrel has caused nausea and an unpleasant aftertaste in a few reports.

Little safety data exists for medicinal or concentrated amounts, so it's best to avoid this supplement while breastfeeding.

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.

Check your exact medications before taking this product if you use blood thinners (anticoagulants) or antiplatelet drugs, or if you take fexofenadine or other drugs transported through OATP carriers. Because sorrel may reduce how well your body absorbs many of these medications, your doctor or pharmacist needs to know you're using it.

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 450 mg is mainly a concern if you take blood thinners, antiplatelet drugs, or medications absorbed through OATP transporters — a large group that includes allergy medications like fexofenadine. The high oxalate content also makes it risky if you have a personal or family history of kidney problems.

If you're considering this supplement, talk it over with your own doctor or pharmacist first, especially if you're on any prescription medications.

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 Feb 21, 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 450 mg, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435115821
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 286547
Product type Botanical
Supplement form Capsule
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 450 mg 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:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
064435115821
IngredientAmount% DV
Sheep Sorrel450 mg--

Other ingredients: Gelatin, 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.
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 Take 1 capsule, 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 450 mg by TerraVita Premium Collection label

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

Sheep Sorrel 450 mg 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 450 mg by TerraVita Premium Collection

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Sheep Sorrel

Interacts with
169 drugs
450 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 monograph & interactions

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

Interaction report

Sheep Sorrel 450 mg by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Sheep Sorrel 450 mg?

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 169

Individual Drug Interactions

The ingredients in Sheep Sorrel 450 mg interact with 169 drugs. Click any drug to see the details.

1 of the 1 ingredient in Sheep Sorrel 450 mg interact with drugs. Each result below shows which ingredient is responsible. Sheep Sorrel

Each ingredient & the kinds of drugs it affects

For each ingredient in Sheep Sorrel 450 mg 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 Sorrel3 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 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Sheep Sorrel 450 mg, 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 450 mg by TerraVita Premium Collection: Common Questions

Does Sheep Sorrel 450 mg by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Sheep Sorrel 450 mg 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 450 mg 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.
Is sheep sorrel safe to take while breastfeeding?
The safety data isn't established for medicinal or concentrated amounts while breastfeeding. There's too little information to know either way, so it's best to avoid this supplement while nursing. Talk with your doctor or pharmacist for personalized advice if you're thinking about using it.
Can this product cause allergic reactions?
Yes — if you're sensitive to weed pollen, you may experience an allergic reaction to sorrel pollen exposure. Cross-sensitivity can occur in about 19% of people allergic to weed pollen, and reactions may include allergic rhinitis (hay fever) or bronchial asthma in sensitive individuals.
What's the concern about oxalates in sorrel?
Sorrel is high in oxalates, which can be absorbed into your system in concentrated doses. These can form crystals and potentially damage your kidneys. One case of acute kidney inflammation has been reported in a child after consuming wild sorrel, so it's especially risky if you have kidney problems or a family history of them.
Does sheep sorrel actually work for bronchitis, breast cancer, or sinus problems?
The evidence isn't established yet. For bronchitis, breast cancer, and rhinosinusitis, we don't have enough reliable human trial data to say whether it works. If you're interested in using it for any of these conditions, ask your doctor what the current evidence shows.
Are there any side effects from taking this supplement?
In reports where sorrel was combined with other herbs, a small number of people experienced nausea and an unpleasant aftertaste. Because of the oxalate content, concentrated doses carry a theoretical risk of kidney damage, especially with heavy or long-term use.

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 450 mg label
Go deeper

The Full Monographs Behind Sheep Sorrel 450 mg’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 450 mg'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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