Seasonal Pollen Protection Ingredients & Drug Interactions
by Herbal Terra
What is this page for?
First and foremost: checking Seasonal Pollen Protection 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
Seasonal Pollen Protection is a dietary supplement by Herbal Terra with 2 active ingredients. Its ingredients are commonly taken for enlarged prostate (bph) symptoms, seasonal allergies, joint pain and arthritis.Based on those ingredients, 285 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Astragalus Root Extract, Stinging Nettle Leaf Extract, Dry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Seasonal Pollen Protection by Herbal Terra
Ask about any prescription or over-the-counter medication and we check it for interactions with Seasonal Pollen Protection 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 Seasonal Pollen Protection 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
Low disclosure
This product contains 2 active ingredients: stinging nettle leaf extract and astragalus root extract. Both are plant-based extracts traditionally used in herbal formulations.
The liquid also contains alcohol, water, and glycerin as inactive ingredients to suspend and preserve the actives.
Does it work?
Not established
The evidence for what this product does is limited. For stinging nettle, there's possibly effective evidence for diabetes, but the evidence for allergic rhinitis (hay fever), anemia, asthma, benign prostate health, and gum health is insufficient to rate.
For astragalus, the evidence for allergic rhinitis, menstrual health, certain types of anemia, heart health, asthma, and blood disorders is also insufficient to rate. The data we hold doesn't establish effectiveness for this product's intended use.
How safe is it?
Well-documented data
Stinging nettle is generally well tolerated when used as directed, though constipation and diarrhea have been reported. Rare cases of liver damage have been reported after weeks of use.
Direct contact with fresh stinging nettle leaves causes itching, rash, and stinging; one case reported severe tongue swelling after placing a fresh leaf in the mouth. Astragalus is generally well tolerated short-term in healthy adults, though human safety data is limited.
Dizziness and temporary heart palpitations have been reported in some cases, though a direct link wasn't always clear. Stinging nettle should not be used during pregnancy — traditional concerns about effects on the uterus mean it's best avoided.
The safety data advises against stinging nettle while breastfeeding. For astragalus, there isn't enough reliable safety data to recommend it during pregnancy or while breastfeeding — talk with your doctor or pharmacist for personalized advice.
Meds to double-check
Moderate interaction found
Before taking this product, check whether you take blood thinners like warfarin, diabetes medications, diuretic drugs (water pills), lithium, immunosuppressants, or cyclophosphamide. All of these interact with one or both of the active ingredients.
Use the medication checker on this page to search for your exact drugs.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
If you take blood thinners, diabetes medications, diuretics, lithium, or immunosuppressants, you'll want to check your medications with the tool on this page before using this product. Even if you're on other drugs, run them through the checker — this product affects a wide range of medications.
Talk with your pharmacist about whether it's right for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 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
General information
Key facts about Seasonal Pollen Protection, straight from the product label.
| Brand | Herbal Terra |
|---|---|
| Barcode (UPC) | 7439500934912 |
| Net contents | 2 Fluid Ounce(s); 60 mL |
| Market status | On market |
| Date entered into DSLD | Aug 22, 2025 |
| DSLD ID | 325374 |
| 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 |
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 Seasonal Pollen Protection by Herbal Terra, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Proprietary Extract Blend | 983 mg | -- |
| Stinging Nettle Leaf Extract, Dry | 0 NP | -- |
| Astragalus Root Extract | 0 NP | -- |
Other ingredients: Alcohol, Water, Glycerin
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.
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
Organic alcohol
No artificial ingredients, color additives, fillers or binders.
Natural Gluten free
Formula
Organic alcohol
FDA Statement of Identity
Herbal Supplement
General Statements
Extraction rate: about 1/3-4 (up to 333 mg of dry raw material per 1 ml of extract).
Seals/Symbols
Made in USA
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Seasonal Pollen Protection 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 Seasonal Pollen Protection by Herbal Terra
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 mL Dosage formLiquid Servings per container60 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Proprietary Extract Blend
Other (inactive) ingredients: Alcohol, Water, Glycerin. These complete the product’s ingredient list but are not active constituents.
Seasonal Pollen Protection by Herbal Terra Drug Interactions
HelloPharmacist Interaction Report
Seasonal Pollen Protection by Herbal Terra contains two active ingredients, and both have documented interactions with medications.
The most serious concern is stinging nettle with blood thinners like warfarin — the herb is high in vitamin K, which can reduce how well these drugs work to prevent clots.
Read the full breakdown — every affected drug type, severity by severity
Stinging nettle also interacts with diabetes medications, diuretics (water pills), and lithium. With diabetes drugs, it may lower blood sugar further.
With diuretics, it may add to their effect. With lithium, it may reduce how quickly your body clears the drug, raising lithium levels — your doctor might need to adjust your dose.
Astragalus root extract interacts with immunosuppressants (drugs that calm your immune system), lithium, cyclophosphamide (a cancer drug), and diabetes medications. With immunosuppressants and cyclophosphamide, astragalus may interfere with their intended effects.
With diabetes drugs, it may raise the risk of low blood sugar. Altogether, these interactions span 280 individual medications.
Before you start this product, use the interaction checker below to search for your exact medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Seasonal Pollen Protection?
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 Seasonal Pollen Protection interact with 285 drugs. Click any drug to see the details.
2 of the 2 ingredients in Seasonal Pollen Protection interact with drugs. Each result below shows which ingredient is responsible. Astragalus Root Extract Stinging Nettle Leaf Extract, Dry
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + 6-mercaptopurine interactionAbrocitinibCibinqo
How Abrocitinib interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Astragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Acarbose interactionStinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Acarbose interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Acetaminophen, Pamabrom, Pyrilamine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Acetohexamide interactionAstragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Acetohexamide interactionAdalimumabHumira
How Adalimumab interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab interactionAdalimumab-adazHyrimoz
How Adalimumab-adaz interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-adaz interactionAdalimumab-adbmCyltezo
How Adalimumab-adbm interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-adbm interactionAdalimumab-afzbAbrilada
How Adalimumab-afzb interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-afzb interactionAdalimumab-attoAmjevita
How Adalimumab-atto interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-atto interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-bwwd interactionAdalimumab-fkjpHulio
How Adalimumab-fkjp interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Adalimumab-fkjp interactionAlbiglutideTanzeum
How Albiglutide interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Astragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Albiglutide interactionStinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Albiglutide interactionAlefaceptAmevive
How Alefacept interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Alefacept interactionAlemtuzumabCampath
How Alemtuzumab interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Alemtuzumab interactionAlogliptinNesina
How Alogliptin interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Alogliptin interactionAstragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Astragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Alogliptin, Metformin interactionStinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Alogliptin, Pioglitazone interactionAstragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Alogliptin, Pioglitazone interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Amiloride, Hydrochlorothiazide interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Ammonium Chloride interactionAnifrolumab-fniaSaphnelo
How Anifrolumab-fnia interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Anifrolumab-fnia interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with Seasonal Pollen Protection — through 2 ingredients. Tap an ingredient for the detail:
Astragalus Root ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Extract + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionStinging Nettle Leaf Extract, DryAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Leaf Extract, Dry + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionAntithymocyte GlobulinThymoglobulin
How Antithymocyte Globulin interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Antithymocyte Globulin interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Leaf Extract, DryDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Leaf Extract, Dry + Atenolol, Chlorthalidone interactionAtezolizumabTecentriq
How Atezolizumab interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Atezolizumab interactionAzamuneImmunoprin
How Azamune interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Azamune interactionAzathioprineAzamune, Imuran
How Azathioprine interacts with Seasonal Pollen Protection — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Extract + Azathioprine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Seasonal Pollen Protection with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Astragalus Root Extract
Antidiabetes Drugs
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research in humans shows that astragalus might have hypoglycemic effects. Theoretically, taking astragalus, especially in combination with other hypoglycemic agents, might increase the risk of hypoglycemia.
Cyclophosphamide
Theoretically, astragalus might interfere with cyclophosphamide therapy.
Evidence regarding the effect of astragalus on immunosuppression caused by cyclophosphamide is conflicting. Some animal research suggests that astragalus reverses cyclophosphamide-induced immunosuppression. However, other animal research shows no effect.
Immunosuppressants
Theoretically, astragalus might interfere with immunosuppressive therapy.
Astragalus seems to stimulate immune function. Theoretically, taking astragalus might decrease the effects of immunosuppressive therapy.
Lithium
Theoretically, astragalus might increase levels and adverse effects of lithium.
Animal research suggests that astragalus has diuretic properties. Theoretically, due to this diuretic effect, astragalus might reduce excretion and increase levels of lithium.
Stinging Nettle Leaf Extract, Dry
Antidiabetes Drugs
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Clinical research shows that stinging nettle might decrease blood glucose levels in patients with diabetes.
Diuretic Drugs
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Animal research suggests that the above ground parts and roots of stinging nettle may have a diuretic effect.
Lithium
Theoretically, stinging nettle might reduce excretion and increase levels of lithium.
Animal research suggests that stinging nettle has diuretic and natriuretic properties, which could alter the excretion of lithium. The dose of lithium might need to be decreased.
Warfarin (Coumadin)
There is some concern that stinging nettle might decrease the effects of anticoagulant drugs such as warfarin.
Stinging nettle contains a significant amount of vitamin K. When taken in large quantities, this might interfere with the activity of warfarin.
Brand information
Manufacturer and brand details for Seasonal Pollen Protection, from the product label.
Herbal Terra
See all Herbal Terra products- Name
- Herbal Terra LLC
- Phone Number
- +18083857868
- Web Address
- herbalterra.com
Seasonal Pollen Protection by Herbal Terra: Common Questions
Does Seasonal Pollen Protection by Herbal Terra interact with any medications?
How can one product interact with so many drugs?
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Is this product proven to help with seasonal allergies?
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Seasonal Pollen Protection 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 Seasonal Pollen Protection’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Stinging Nettle
Interacts with 164 drugsStinging nettle is a common plant used as food and in traditional medicine, most often for prostate symptoms, allergies, and joint pain. The evidence is mixed and mostly preliminary, so it i...
Read the full Stinging Nettle monograph → Herb & supplement monographAstragalus
Interacts with 208 drugsAstragalus is a root used for centuries in traditional Chinese medicine, mainly to support the immune system and help the body cope with stress. While early studies are interesting, strong h...
Read the full Astragalus monograph →Sources & How We Checked
Seasonal Pollen Protection'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 36 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.
Stinging Nettle 23 references
- Monographs on the medicinal uses of plant drugs. Exeter, UK: European Scientific Co-op Phytother, 1997.
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
- Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Mittman P. Randomized, double-blind study of freeze-dried Urtica dioica in the treatment of allergic rhinitis. Planta Med 1990;56:44-7.
- Vontobel HP, Herzog R, Rutishauser G, Kres H. [Results of a double-blind study on the effectiveness of ERU (extractum radicis Urticae) capsules in conservative treatment of benign prostatic hyperplasia]. (Abstract). Urologe A 1985;24:49-51.
- Randall C, Randall H, Dobbs F, et al. Randomized controlled trial of nettle sting for treatment of base-of-thumb pain. J R Soc Med 2000;93:305-9. PubMed
- Caliskaner Z, Karaayvaz M, Ozturk S. Misuse of a herb: stinging nettle (Urtica urens) induced severe tongue oedema. Complement Ther Med 2004;12:57-8. PubMed
- Krzeski, T., Kazon, M., Borkowski, A., Witeska, A., and Kuczera, J. Combined extracts of Urtica dioica and Pygeum africanum in the treatment of benign prostatic hyperplasia: double-blind comparison of two doses. Clin Ther 1993;15(6):1011-1020.
- Randall, C., Meethan, K., Randall, H., and Dobbs, F. Nettle sting of Urtica dioica for joint pain--an exploratory study of this complementary therapy. Complement Ther Med 1999;7(3):126-131. PubMed
- Tahri, A., Yamani, S., Legssyer, A., Aziz, M., Mekhfi, H., Bnouham, M., and Ziyyat, A. Acute diuretic, natriuretic and hypotensive effects of a continuous perfusion of aqueous extract of Urtica dioica in the rat. J Ethnopharmacol 2000;73(1-2):95-100. PubMed
- Sahin, M., Yilmaz, H., Gursoy, A., Demirel, A. N., Tutuncu, N. B., and Guvener, N. D. Gynaecomastia in a man and hyperoestrogenism in a woman due to ingestion of nettle (Urtica dioica). N.Z.Med.J. 2007;120(1265):U2803.
- Randall, C., Dickens, A., White, A., Sanders, H., Fox, M., and Campbell, J. Nettle sting for chronic knee pain: a randomised controlled pilot study. Complement Ther.Med. 2008;16(2):66-72. PubMed
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- Oliver, F., Amon, E. U., Breathnach, A., Francis, D. M., Sarathchandra, P., Black, A. K., and Greaves, M. W. Contact urticaria due to the common stinging nettle (Urtica dioica)-- histological, ultrastructural and pharmacological studies. Clin Exp Dermato PubMed
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