Stinging Nettle & Saw Palmetto Ingredients & Drug Interactions
by TerraVita
What is this page for?
First and foremost: checking Stinging Nettle & Saw Palmetto 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
Stinging Nettle & Saw Palmetto is a dietary supplement by TerraVita with 1 active ingredient. Its ingredients are commonly taken for enlarged prostate (bph) symptoms, seasonal allergies, joint pain and arthritis.Based on those ingredients, 336 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Stinging Nettle & Saw Palmetto Glycerite Liquid Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Stinging Nettle & Saw Palmetto by TerraVita
Ask about any prescription or over-the-counter medication and we check it for interactions with Stinging Nettle & Saw Palmetto by TerraVita — 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
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of Stinging Nettle & Saw Palmetto 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.
What’s inside
Low disclosure
This product contains two active ingredients. Saw Palmetto Glycerite Liquid Extract is derived from the berry of the saw palmetto plant and is traditionally used for urinary and prostate concerns.
Stinging Nettle Glycerite Liquid Extract comes from the leaves and stems of stinging nettle and is used for joint, urinary, and general wellness support. The liquid is prepared using glycerin as the extraction medium, and glycerin also appears as an inactive ingredient.
Does it work?
Leans against
For saw palmetto, the evidence suggests it's possibly ineffective for benign prostatic hyperplasia (enlarged prostate) and possibly effective for transurethral resection of the prostate recovery. For other uses like hair loss and lower urinary tract symptoms, there isn't enough reliable evidence to rate it yet.
For stinging nettle, it's possibly effective for diabetes—some clinical research shows it may help lower blood glucose. For allergic rhinitis, anemia, asthma, and prostate health, the evidence isn't established well enough in our data to rate it.
How safe is it?
Well-documented data
Both ingredients are generally well tolerated when used as directed. Saw palmetto's most common side effects are mild and reversible: abdominal pain, constipation, decreased sex drive, diarrhea, dizziness, fatigue, headache, nausea, and stuffiness.
Stinging nettle's most common effects are constipation and diarrhea. Rare cases of skin rash, heart rhythm changes, and liver inflammation have been reported with these ingredients, though they're uncommon.
Pregnancy and breastfeeding: The safety data advises against saw palmetto during pregnancy because of possible effects on hormones and lack of safety data, and against use while breastfeeding. For stinging nettle, there isn't enough safety data during pregnancy or breastfeeding, so talk with your doctor or pharmacist before using it if you're pregnant or nursing.
Meds to double-check
Moderate interaction found
Before taking this product, check with your doctor or pharmacist if you use blood thinners or antiplatelet drugs (like warfarin or aspirin)—saw palmetto may increase bleeding risk. Also double-check if you take diabetes medications, diuretics, lithium, or hormonal contraceptives, as stinging nettle and saw palmetto may affect how they work.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with graded evidence leaning against its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This two-ingredient blend may appeal to people interested in prostate or urinary health from a traditional-use standpoint, but the evidence for effectiveness is limited. If you take blood thinners, diabetes medication, diuretics, hormonal birth control, or lithium, check with your doctor or pharmacist before starting—saw palmetto and stinging nettle both carry documented interactions with these drugs.
Pregnant or breastfeeding individuals should avoid it. Have a conversation with your own healthcare provider to decide if this is right for your situation.
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 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
General information
Key facts about Stinging Nettle & Saw Palmetto, straight from the product 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 Stinging Nettle & Saw Palmetto by TerraVita, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Saw Palmetto Glycerite Liquid Extract | 0 NP | -- |
| Stinging Nettle & Saw Palmetto Glycerite Liquid Extract | 0.13 mL | -- |
| Stinging Nettle Glycerite Liquid Extract | 0 NP | -- |
Other ingredients: 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.
Brand IP Statement(s)
Copyright 2018 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.
Formula
Glycerite liquid extract (1:5)
Formulation
Alcohol free
No flavor
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.
Stinging Nettle & Saw Palmetto by TerraVita 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 Stinging Nettle & Saw Palmetto 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.
Stinging Nettle & Saw Palmetto Glycerite Liquid Extract
Interacts with164 drugs
Stinging nettle is a common plant used as food and in traditional medicine, most often for prostate symptoms, allergies, and joint pain. The evidence...
Stinging Nettle & Saw Palmetto Glycerite Liquid Extract monograph & interactionsOther (inactive) ingredients: Glycerin. These complete the product’s ingredient list but are not active constituents.
Stinging Nettle & Saw Palmetto by TerraVita Drug Interactions
HelloPharmacist Interaction Report
TerraVita's Stinging Nettle & Saw Palmetto Liquid is a two-ingredient blend that does interact with medications.
Through its saw palmetto and stinging nettle content, this product affects estrogens, contraceptive drugs, blood thinners (anticoagulants and antiplatelet drugs), diabetes medications, diuretics, lithium, and warfarin specifically. The most serious concern is a Moderate interaction: saw palmetto might increase bleeding risk when combined with blood thinners or antiplatelet drugs like aspirin.
Read the full breakdown — every affected drug type, severity by severity
Stinging nettle adds its own Moderate interactions with diabetes medications (it might lower blood sugar further), diuretics (additive water-shedding effects), and lithium (it could raise lithium levels by reducing kidney excretion). Stinging nettle also contains vitamin K, which in large amounts might weaken warfarin's blood-thinning action.
Saw palmetto carries additional Moderate concerns with estrogens and hormonal contraceptives—it may reduce how well they work because of its antiestrogenic effects. Altogether, these interactions span 336 individual medications.
Before you start this product, run your exact medications through the interaction checker below, especially if you take any blood thinner, diabetes drug, diuretic, hormonal birth control, or lithium.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Stinging Nettle & Saw Palmetto?
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 Stinging Nettle & Saw Palmetto interact with 336 drugs. Click any drug to see the details.
1 of the 1 ingredient in Stinging Nettle & Saw Palmetto interact with drugs. Each result below shows which ingredient is responsible. Stinging Nettle & Saw Palmetto Glycerite Liquid Extract
AbciximabReoPro
How Abciximab interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Glycerite Liquid Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Acetaminophen, Ibuprofen interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Glycerite Liquid Extract + Acetaminophen, Pamabrom, Pyrilamine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Glycerite Liquid Extract + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Acetylsalicylic Acid interactionAlbiglutideTanzeum
How Albiglutide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Albiglutide interactionAlogliptinNesina
How Alogliptin interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Alteplase, Tpa interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Glycerite Liquid Extract + Amiloride, Hydrochlorothiazide interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Read the full Stinging Nettle Glycerite Liquid Extract + Ammonium Chloride interactionAnacaulase-bcdbNexoBrid
How Anacaulase-bcdb interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Anacaulase-bcdb interactionAnagrelideAgrylin
How Anagrelide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Anagrelide interactionAnisindioneMiradon
How Anisindione interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Anisindione interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Stinging Nettle Glycerite Liquid ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Read the full Stinging Nettle Glycerite Liquid Extract + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionAntithrombin IiiThrombate III
How Antithrombin Iii interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Antithrombin Iii interactionApixabanEliquis
How Apixaban interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Apixaban interactionArgatrobanArgatroban
How Argatroban interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Argatroban interactionAspirinAngettes 75, ASA, Asaphen, Aspirin, Caprin, Cartia +8 more
How Aspirin interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Aspirin interactionAspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3
How Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interacts with Stinging Nettle & Saw Palmetto — through 1 ingredient. Tap an ingredient for the detail:
Saw Palmetto Glycerite Liquid ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Read the full Saw Palmetto Glycerite Liquid Extract + Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium Hydroxide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Stinging Nettle & Saw Palmetto 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.
Stinging Nettle & Saw Palmetto Glycerite Liquid Extract
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 Stinging Nettle & Saw Palmetto, from the product label.
TerraVita
See all TerraVita products- Name
- ZooScape LLC
- Phone Number
- 844-449-0444
- Web Address
- www.ZooScape.com
Stinging Nettle & Saw Palmetto by TerraVita: Common Questions
Does Stinging Nettle & Saw Palmetto by TerraVita interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I use this if I'm on blood thinners?
Will this affect my birth control?
Is this safe during pregnancy or breastfeeding?
What are the most common side effects?
Will this help my prostate or urinary symptoms?
Does this product have fillers or other inactive ingredients?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Stinging Nettle & Saw Palmetto 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 Stinging Nettle & Saw Palmetto’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 monographSaw Palmetto
Interacts with 174 drugsSaw palmetto is a plant extract most often used for urinary symptoms linked to an enlarged prostate (BPH). The best research suggests it works no better than a placebo for most men, though i...
Read the full Saw Palmetto monograph →Sources & How We Checked
Stinging Nettle & Saw Palmetto'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 45 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.
Saw Palmetto 22 references
- Wilt TJ, Ishani A, Stark G, et al. Saw palmetto extracts for treatment of benign prostatic hyperplasia: a systematic review. JAMA 1998;280:1604-9. PubMed
- Carraro JC, Raynaud JP, Koch G, et al. Comparison of phytotherapy (Permixon) with finasteride in the treatment of benign prostate hyperplasia: a randomized international study of 1,098 patients. Prostate 1996;29:231-40. DOI
- Di Silverio F, D'Eramo G, Lubrano C, et al. Evidence that Serenoa repens extract displays an antiestrogenic activity in prostatic tissue of benign prostatic hypertrophy patients. Eur Urol 1992;21:309-14. PubMed
- Stepanov VN, Siniakova LA, Sarrazin B, Raynaud JP. Efficacy and tolerability of the lipidosterolic extract of Serenoa repens (Permixon) in benign prostatic hyperplasia: a double-blind comparison of two dosage regimens. Adv Ther 1999;16:231-41.
- Cheema P, El-Mefty O, Jazieh AR. Intraoperative haemorrhage associated with the use of extract of Saw Palmetto herb: a case report and review of literature. J Intern Med 2001;250:167-9. PubMed
- Jibrin I, Erinle A, Saidi A, Aliyu ZY. Saw palmetto-induced pancreatitis. South Med J 2006;99:611-2. PubMed
- Prager N, Bickett K, French N, Marcovici G. A randomized, double-blind, placebo-controlled trial to determine the effectiveness of botanically derived inhibitors of 5-alpha-reductase in the treatment of androgenetic alopecia. J Altern Complement Med 2002
- Avins AL, Bent S, Staccone S, et al. A detailed safety assessment of a saw palmetto extract. Complement Ther Med 2008;16:147-54. PubMed
- Morgia, G., Mucciardi, G., Gali, A., Madonia, M., Marchese, F., Di, Benedetto A., Romano, G., Bonvissuto, G., Castelli, T., Macchione, L., and Magno, C. Treatment of chronic prostatitis/chronic pelvic pain syndrome category IIIA with Serenoa repens plus
- Aliaev, IuG, Vinarov, A. Z., Lokshin, K. L., and Spivak, L. G. [Efficiency and safety of prostamol-Uno in patients with chronic abacterial prostatitis]. Urologiia. 2006;(1):47-50.
- Agbabiaka, T. B., Pittler, M. H., Wider, B., and Ernst, E. Serenoa repens (saw palmetto): a systematic review of adverse events. Drug Saf 2009;32(8):637-647. PubMed
- Wargo, K. A., Allman, E., and Ibrahim, F. A possible case of saw palmetto-induced pancreatitis. South.Med.J. 2010;103(7):683-685. PubMed
- Lapi, F., Gallo, E., Giocaliere, E., Vietri, M., Baronti, R., Pieraccini, G., Tafi, A., Menniti-Ippolito, F., Mugelli, A., Firenzuoli, F., and Vannacci, A. Acute liver damage due to Serenoa repens: a case report. Br.J.Clin.Pharmacol. 2010;69(5):558-560.
- Mantovani, F. Serenoa repens in benign prostatic hypertrophy: analysis of 2 Italian studies. Minerva Urol.Nefrol. 2010;62(4):335-340.
- Hanaka, M., Yoshii, C., Yatera, K., Ito, C., Chojin, Y., Nagata, S., Yamasaki, K., Nishida, C., Kawanami, T., Kawanami, Y., Ishimoto, H., and Mukae, H. [A case of rhabdomyolysis caused by saw palmetto of healthy foods]. J.UOEH. 6-1-2012;34(2):193-199. PubMed
- Miroddi, M., Carni, A., Mannucci, C., Moleti, M., Navarra, M., and Calapai, G. Hot flashes in a young girl: a wake-up call concerning Serenoa repens use in children. Pediatrics 2012;130(5):e1374-e1376.
- Braeckman J. The extract of Serenoa repens in the treatment of benign prostatic hyperplasia: a multicenter open study. Current Therapeutic Research 1994;55(7):776-785. DOI
- Jipescu D, Patel A, Bohra H, Pientka A. Rare case of saw palmetto induced heart block. JACC 2017;69(11) supplement:2310.
- Morabito P, Miroddi M, Giovinazzo S, Spina E, Calapai G. Serenoa repens as an endocrine disruptor in a 10-year-Old young girl: a new case report. Pharmacology. 2015;96(1-2):41-3. doi: 10.1159/000431327.
- Gammoudi R, Ameur K, Ouni B, et al. Fixed drug eruption to Serenoa repens: first case report and consideration of the use of herbal medicine. Dermatol Ther 2020 Aug 29:e14247.
- Paulis G, Paulis A, Perletti G. Serenoa repens and its effects on male sexual function. A systematic review and meta-analysis of clinical trials. Arch Ital Urol Androl 2021;93(4):475-480. PubMed
- Venkateswaran S, Declet-Bauzo R, Shodeinde M, Gilford P. Postoperative Retroperitoneal Hematoma: A Case of Saw Palmetto and the Importance of Primary Care Intervention. HCA Healthc J Med 2020;1(5):279-282. PubMed
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
- Rayburn, K., Fleischbein, E., Song, J., Allen, B., Kundert, M., Leiter, C., and Bush, T. Stinging nettle cream for osteoarthritis. Altern.Ther.Health Med. 2009;15(4):60-61.
- 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
- Kulze, A. and Greaves, M. Contact urticaria caused by stinging nettles. Br.J Dermatol. 1988;119(2):269-270. PubMed
- Patten G. Medicinal plant review: Urtica. Aust J Med Herbalism 1993;5(1):5-13.
- Maor D, Little M. Skin contact with a stinging tree requiring intensive care unit admission. Contact Dermatitis. 2017 Nov;77(5):335-37. PubMed
- Easton L, Vaid S, Nagel AK, Venci JV, Fortuna RJ. Stinging Nettle (Urtica dioica): An Unusual Case of Galactorrhea. Am J Case Rep 2021;22:e933999. PubMed
- Niazi B, Ahmed K, Ahmed M, Ali S, Song K, Elias S. Drug-Induced Liver Injury from Herbal Liver Detoxification Tea. Case Rep Gastroenterol 2022;16(3):612-617. PubMed
- Nnamani I, Tolu-Akinnawo O, Dufera RR, Akintunde A, Maliakkal B. Tinospora cordifolia (Guduchi/Giloy)-Induced Liver Injury: A Case Review. Cureus 2023;15(5):e39793. PubMed
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