Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

Red Clover Blend Ingredients & Drug Interactions

by Nature's Sunshine

Red Clover Blend label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Red Clover Blend 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

Red Clover Blend is a dietary supplement by Nature's Sunshine with 4 active ingredients. Its ingredients are commonly taken for skin conditions like acne and eczema, digestive support, diuretic ('detox') and blood purifier.Based on those ingredients, 1,362 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Sage leaves extract, Red Clover blossoms extract, Burdock root extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Red Clover Blend by Nature's Sunshine

Ask about any prescription or over-the-counter medication and we check it for interactions with Red Clover Blend by Nature's Sunshine — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Red Clover Blend by Nature's Sunshine

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

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 4 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (3,000 mg) without saying how much of each component you get.

Red Clover Blend contains four active ingredients: burdock root extract, sage leaves extract, red clover blossoms extract, and pau d'arco bark extract, delivered in a liquid form. The product also includes vegetable glycerin and purified water as inactive ingredients to create the liquid base.

Each of these plant extracts has a traditional history in herbal practice, though the scientific evidence for most of them remains limited or unclear. The blend is designed as a combination formula, meaning you're getting all four ingredients in one preparation.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: circulatory system support.
  • We looked for evidence on: Hyperlipidemia, Menopausal symptoms, blood flow, vascular health.
  • The strongest evidence on file: Sage is rated "Possibly Effective" for Hyperlipidemia (Natural Medicines).
  • Also on file: Sage is rated "Possibly Effective" for Menopausal symptoms.
  • Also on file: Red Clover is rated "Insufficient Reliable Evidence To Rate" for Hyperlipidemia, Menopausal symptoms.

The evidence for what this blend can actually do is thin across the board. For burdock root, there's insufficient reliable evidence to rate its use for acne, aging skin, breast cancer, common cold, or eczema.

Sage leaves show possibly effective evidence only for menopausal symptoms, high cholesterol, and cognitive function, though it rated possibly ineffective for postoperative pain. Red clover blossoms lack sufficient evidence to support use for hair loss, menopausal symptoms, osteoarthritis, or osteoporosis.

Pau d'arco bark similarly shows insufficient evidence for cancer, ulcers, wound healing, or menstrual cramps. If you're considering this product for a specific health goal, the data we hold doesn't establish that it works for most of the conditions people typically use it for.

The evidence, ingredient by ingredient Burdock Sage Red Clover Pau D'arco

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 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Burdock root is likely safe as a food and for short-term use in healthy adults, though human safety data are limited; it's generally well tolerated when eaten as food, but rare allergic reactions — including contact dermatitis and anaphylaxis — have been reported, and one case of liver disease was reported in someone taking a detox tea containing burdock and other ingredients. Avoid medicinal amounts during pregnancy due to possible effects on the uterus, and avoid it while breastfeeding because there isn't enough safety information.

Sage leaves are generally safe as a food and short-term tea, but concentrated extracts and essential oils should be used cautiously. The most common side effects are abdominal pain, agitation, diarrhea, dizziness, nausea, and vomiting; rare serious effects include seizures from its thujone, camphor, and cineol content.

Sage is likely unsafe during pregnancy because of its thujone content (food amounts are probably fine), and medicinal amounts should be avoided while breastfeeding since sage has traditionally been used to reduce milk supply. Red clover blossoms are generally well tolerated short-term in healthy adults, though its estrogen-like activity warrants caution in certain people; common side effects include muscle pain, nausea, and vaginal spotting.

Avoid it during pregnancy and while breastfeeding. Pau d'arco bark may cause side effects at higher doses with limited human safety data; doses of lapachol above 1.5 grams daily may cause anemia, increased bleeding risk, and severe nausea, vomiting, and diarrhea.

Avoid it during pregnancy and breastfeeding.

Side effects, ingredient by ingredient Burdock Sage Red Clover Pau D'arco

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?
  • 4 of the 4 matched ingredients can interact with medications — Burdock, Red Clover, Sage, Pau D'arco.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; seizure medications; diabetes medications.
  • For scale: 1,363 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, double-check with your doctor or pharmacist if you use blood thinners (anticoagulants or antiplatelet drugs like warfarin, aspirin, or clopidogrel) — burdock and pau d'arco may increase bleeding risk. If you take blood pressure medication, sedatives or other CNS depressants, hormone therapy or estrogen products, tamoxifen, methotrexate, or any drugs broken down by your liver (including many antidepressants, beta-blockers, and statins), ask your pharmacist to check this blend against your specific medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This blend combines four plant extracts with very limited scientific support for most common uses and a substantial list of potential medication interactions. If you're taking blood thinners, blood pressure drugs, hormones, cancer treatments like tamoxifen, methotrexate, sedatives, or drugs metabolized by your liver, you'll want to check with your doctor or pharmacist before using it.

Even if you're not on those medications, the evidence that this product actually does what people hope it will is weak or missing.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Oct 23, 2019.

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 Red Clover Blend, straight from the product label.

Brand Nature's Sunshine
Barcode (UPC) 099904034204
Net contents 2 fl. Oz.; 59 mL
Market status On market
Date entered into DSLD Oct 23, 2019
DSLD ID 208181
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher
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 Red Clover Blend by Nature's Sunshine, 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:
5 mL
Maximum serving Sizes:
5 mL
Servings per container
11
UPC/BARCODE
099904034204
IngredientAmount% DV
Proprietary Blend3000 mg--
Burdock root extract0 NP--
Sage leaves extract0 NP--
Red Clover blossoms extract0 NP--
Pau d'Arco bark extract0 NP--

Other ingredients: Vegetable Glycerin, purified 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.
General Statements

010034201011 Circulatory system support

Product of U.S.A. Herb specialists since 1972 Quality, service, integrity Liquid herbal extract

Guaranteed pure

Suggested/Recommended/Usage/Directions

Recommendation Take one teaspoon (5 ml) three times daily with a meal.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Precautions

This bottle was sealed for your protection. Do not use if outer shrink band is missing or damaged.

Brand IP Statement(s)

2011 Nature's Sunshine Products, Inc.

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Ko Pareve

Formula

Ko Pareve

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

See for yourself

Red Clover Blend by Nature's Sunshine label

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

Red Clover Blend 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 Red Clover Blend by Nature's Sunshine

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size5 mL Dosage formLiquid Servings per container11 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.

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

Interaction report

Red Clover Blend by Nature's Sunshine Drug Interactions

Want to check YOUR meds against Red Clover Blend?

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
1,362Drugs
1,348 Moderate 14 Minor

Ingredients driving the most interactions

Sage leaves extract 1,296
Red Clover blossoms extract 867
Burdock root extract 122
Pau d'Arco bark extract 122

Individual Drug Interactions

The ingredients in Red Clover Blend interact with 1,362 drugs. Click any drug to see the details.

4 of the 4 ingredients in Red Clover Blend interact with drugs. Each result below shows which ingredient is responsible. Sage leaves extract Red Clover blossoms extract Burdock root extract Pau d'Arco bark extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Red Clover Blend 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.

Sage leaves extract14 drug types · 1,296 drugs

Anticholinergic Drugs

Theoretically, sage might decrease the clinical effects of anticholinergic drugs.
In vitro evidence suggests that common sage (Salvia officinalis) and Spanish sage (Salvia lavandulaefolia) can inhibit acetylcholinesterase and might increase acetylcholine levels.

Likelihood Possible Evidence D
Anticonvulsants

Theoretically, sage might interfere with the clinical effects of anticonvulsant drugs.
Some species of sage can cause convulsions when consumed in large quantities.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking sage with antidiabetes drugs might increase the risk of hypoglycemia.
In patients with polycystic ovary syndrome (PCOS) or inadequately controlled type 2 diabetes, common sage (Salvia officinalis) has demonstrated hypoglycemic activity. However, other clinical research in patients with inadequately controlled type 2 diabetes shows that common sage extract does not lower fasting blood glucose levels.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, sage might increase or decrease the effects of antihypertensive drugs.
Animal research suggests that common sage (Salvia officinalis) can cause prolonged blood pressure reduction. However, clinical research suggests that Spanish sage (Salvia lavandulaefolia) can increase blood pressure in some people with hypertension. Until more is known, use with caution.

Likelihood Possible Evidence D
Benzodiazepines

Theoretically, taking sage might increase the sedative and adverse effects of benzodiazepines.
In vitro evidence suggests that certain components of common sage (Salvia officinalis) can bind to benzodiazepine receptors. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, sage might have additive effects when used with cholinergic drugs.
In vitro evidence suggests that common sage (Salvia officinalis) and Spanish sage (Salvia lavandulaefolia) can inhibit acetylcholinesterase and might increase acetylcholine levels.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, taking sage might increase the sedative and adverse effects of CNS depressants.
Some constituents of sage have CNS depressant activity.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, sage might increase the levels and clinical effects of drugs metabolized by CYP2C19.
In vitro evidence suggests that aqueous extracts of sage can inhibit CYP2C19. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, sage might increase the levels and clinical effects of drugs metabolized by CYP2C9.
In vitro evidence suggests that aqueous extracts of sage can inhibit CYP2C9. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, sage might increase the levels and clinical effects of drugs metabolized by CYP2D6.
In vitro evidence suggests that aqueous extracts of sage can inhibit CYP2D6. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2E1 (Cyp2E1) Substrates

Theoretically, sage might decrease the levels and clinical effects of drugs metabolized by CYP2E1.
Animal research suggests that drinking common sage (Salvia officinalis) tea increases the expression of CYP2E1. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, sage might increase the levels and clinical effects of drugs metabolized by CYP3A4.
In vitro evidence suggests that aqueous extracts of sage can inhibit CYP3A4. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Estrogens

Theoretically, sage might interfere with hormone therapy.
In vitro evidence suggests that geraniol, a constituent of Spanish sage (Salvia lavandulaefolia), exerts estrogenic activity. The clinical significance of this effect is unclear.

Likelihood Possible Evidence D
P-Glycoprotein Substrates

Theoretically, sage might increase levels of drugs transported by P-glycoprotein.
In vitro research suggests that common sage (Salvia officinalis) can inhibit the multi-drug transporter protein, P-glycoprotein. This effect has not been reported in humans.

Likelihood Possible Evidence D
Sage leaves extract full monograph & interactions

Red Clover blossoms extract9 drug types · 867 drugs

Estrogens

Theoretically, concomitant use of large amounts of red clover might interfere with estrogen therapy.
Red clover contains phytoestrogens which might have estrogenic activity in some people. Theoretically, red clover might compete for estrogen receptors and interfere with estrogen-containing drug therapy.

Likelihood Probable Evidence D
Methotrexate (Trexall, Others)

Theoretically, red clover might increase the risk of methotrexate toxicity.
In a case report, a 52-year-old female receiving weekly methotrexate injections for psoriasis developed symptoms of methotrexate toxicity, including severe vomiting and epigastric pain, after three days of taking red clover 430 mg daily. Toxicity resolved after red clover was discontinued. However, no liver function tests or methotrexate levels were reported.

Likelihood Possible Evidence D
Tamoxifen (Nolvadex)

Theoretically, the phytoestrogens in red clover might interfere with tamoxifen.
In vitro and animal research suggests that genistein, a constituent of red clover, might antagonize the antitumor effects of tamoxifen. However, there is some evidence from an animal study that red clover does not reduce the efficacy of tamoxifen. Until more is known, tell patients taking tamoxifen to avoid red clover.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Although some laboratory research suggests that red clover may have anticoagulant and antiplatelet activity, clinical research has not shown this effect.
In vitro research suggests that genistein in red clover has antiplatelet effects, and historically, red clover was thought to have anticoagulant effects due to its coumarin content. However, some experts state that this is unlikely as most natural coumarins have not been shown to have anticoagulant effects, and their content in red clover is low. Additionally, some clinical research in postmenopausal patients found no effect on coagulation or prothrombin time with the use of red clover flowering tops 378 mg daily for 12 months or red clover isoflavone (Rimostil) 50 mg daily for 2 years.

Likelihood Unlikely Evidence B
Caffeine

Theoretically, soy might reduce the clearance of caffeine; however, a small clinical study found no effect.
Red clover contains genistein. Taking genistein 1 gram daily for 14 days seems to inhibit caffeine clearance and metabolism in healthy females. However, this effect does not seem to occur with the lower amounts of genistein found in red clover. A clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine.

Likelihood Unlikely Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, red clover might increase levels of drugs metabolized by CYP1A2; however, a small clinical study found no effect.
In vitro evidence shows that red clover inhibits CYP1A2. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of caffeine, a CYP1A2 probe substrate.

Likelihood Unlikely Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, red clover might increase the levels and clinical effects of drugs metabolized by CYP2C19.
In vitro evidence suggests that red clover weakly inhibits CYP2C19. This interaction has not been reported in humans.

Likelihood Unlikely Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, red clover might increase levels of drugs metabolized by CYP2C9; however, a small clinical study found no effect.
In vitro evidence suggests that red clover might inhibit CYP2C9. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of tolbutamide, a CYP2C9 probe substrate.

Likelihood Unlikely Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, red clover might increase levels of drugs metabolized by CYP3A4; however, a small clinical study found no effect.
In vitro evidence shows that red clover might inhibit CYP3A4 isoenzymes. However, a clinical study in healthy postmenopausal individuals shows that taking red clover capsules standardized to contain 60 mg isoflavones twice daily for 14 days does not affect the pharmacokinetics of alprazolam, a CYP3A4 probe substrate.

Likelihood Unlikely Evidence B
Red Clover blossoms extract full monograph & interactions

Burdock root extract1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking burdock with anticoagulant or antiplatelet drugs might increase the risk of bleeding.

In vitro research shows that lignans from burdock reduce rabbit platelet aggregation by inhibiting platelet activating factor. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Burdock root extract full monograph & interactions

Pau d'Arco bark extract1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, pau d'arco might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that pau d'arco reduces platelet aggregation and may interfere with vitamin K. One clinical study shows that taking the lapachol constituent of pau d'arco in doses above 1.5 grams daily increases the risk of bleeding. The effects of whole pau d'arco or pau d'arco extract in humans are unclear.

Likelihood Possible Evidence D
Pau d'Arco bark extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Red Clover Blend, from the product label.

Nature's Sunshine

See all Nature's Sunshine products
Name
Nature's Sunshine Products, Inc.
City
Spanish Fork
State
UT
ZipCode
84660
Phone Number
1-800-223-8225
Web Address
www.naturessunshine.com
Pharmacist Counseling Corner

Red Clover Blend by Nature's Sunshine: Common Questions

Does Red Clover Blend by Nature's Sunshine interact with any medications?
Yes. Based on its ingredients, Red Clover Blend has a known interaction with 1,362 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Red Clover Blend contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 this safe to take if I'm pregnant or breastfeeding?
No — burdock, sage, red clover, and pau d'arco all advise against use during pregnancy due to lack of safety data and potential effects on the developing baby. While breastfeeding, there isn't enough information for any of these ingredients, so it's best to avoid them. Talk with your doctor or pharmacist about your individual situation.
What is this blend supposed to help with?
The ingredients have traditional uses for various issues like menopausal symptoms, skin conditions, and general wellness. However, the scientific evidence is insufficient to confirm that this blend actually works for most of these uses. Sage has possibly effective evidence for menopausal symptoms and high cholesterol only.
What are the most common side effects?
With sage, you might experience abdominal pain, diarrhea, dizziness, nausea, or vomiting. Red clover can cause nausea, muscle pain, or vaginal spotting. Burdock is generally well tolerated as a food. At higher doses, pau d'arco's lapachol constituent may cause severe nausea, vomiting, diarrhea, and anemia.
Can this interact with my medications?
Yes — this blend potentially interacts with blood thinners, blood pressure drugs, sedatives, hormones, tamoxifen, methotrexate, and a wide range of drugs your liver breaks down. Use the medication checker on this page with your exact medications, and ask your pharmacist or doctor before starting.
Is there any ingredient in this blend with no known interactions?
No — all four active ingredients in this blend have documented interactions with certain medications. That doesn't mean it won't work for you, but it does mean you need to check your specific drugs before taking it.
What is pau d'arco used for in this blend?
Pau d'arco bark has traditional uses for cancer, ulcers, wound healing, and menstrual cramps, but the evidence is insufficient to confirm it works for any of these purposes. There's also a risk of bleeding and other serious side effects at higher doses.

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.

Red Clover Blend label
Go deeper

The Full Monographs Behind Red Clover Blend’s Ingredients

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

Herb & supplement monograph

Burdock

Interacts with 122 drugs

Burdock is a traditional herb most often used for skin problems and as a so-called 'blood purifier,' but high-quality human studies are lacking and most claims are not well proven. It is wid...

Read the full Burdock monograph → Herb & supplement monograph

Sage

Interacts with 1,296 drugs

Sage is a common kitchen herb that is generally safe in food amounts and is traditionally used for sore throats, digestion, sweating, and memory. Some early research is encouraging for sore...

Read the full Sage monograph → Herb & supplement monograph

Red Clover

Interacts with 867 drugs

Red clover is a plant rich in isoflavones (plant compounds with weak estrogen-like activity) that is most often used for menopause symptoms like hot flashes. The evidence is mixed and genera...

Read the full Red Clover monograph → Herb & supplement monograph

Pau D'arco

Interacts with 122 drugs

Pau d'arco is a South American tree bark traditionally used for infections and inflammation, and it contains compounds like lapachol that show activity in lab studies. However, strong human...

Read the full Pau D'arco monograph →
Sources

Sources & How We Checked

Red Clover Blend'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 68 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.

Burdock 11 references
  1. Iwakami S, Wu JB, Ebizuka Y, Sankawa U. Platelet activating factor (PAF) antagonists contained in medicinal plants: lignans and sesquiterpenes. Chem Pharm Bull (Tokyo) 1992;40:1196-8. PubMed
  2. Sasaki Y, Kimura Y, Tsunoda T, Tagami H. Anaphylaxis due to burdock. Int J Dermatol 2003;42:472-3. PubMed
  3. Rhoads PM, Tong TG, Banner W Jr, Anderson R. Anticholinergic poisonings associated with commercial burdock root tea. J Toxicol Clin Toxicol 1984-85;22:581-4. PubMed
  4. Rodriguez P, Blanco J, Juste S, et al. Allergic contact dermatitis due to burdock (Arctium lappa). Contact Dermatitis 1995;33:134-5.
  5. Kassler, W. J., Blanc, P., and Greenblatt, R. The use of medicinal herbs by human immunodeficiency virus-infected patients. Arch Intern Med 1991;151(11):2281-2288. DOI
  6. Chan, Y. S., Cheng, L. N., Wu, J. H., Chan, E., Kwan, Y. W., Lee, S. M., Leung, G. P., Yu, P. H., and Chan, S. W. A review of the pharmacological effects of Arctium lappa (burdock). Inflammopharmacology. 2011;19(5):245-254. PubMed
  7. Breed, F. B. and Kuwabara, T. Burdock ophthalmia. Arch Ophthalmol 1966;75(1):16-20.
  8. Bryson, P. D., Watanabe, A. S., Rumack, B. H., and Murphy, R. C. Burdock root tea poisoning. Case report involving a commercial preparation. JAMA 5-19-1978;239(20):2157. DOI
  9. <p>Fletcher GF<span>, </span>Cantwell JD. Burdock root tea poisoning. JAMA <span>1978 Oct 6;240(15):1586.</span></p> DOI
  10. Latif A, Fichadiya H, Abid F, Capo G. Herbal Teas and Thrombocytopenia: A Curious Case of Yellow Dock and Burdock-Induced Thrombocytopenia. Eur J Case Rep Intern Med 2022;9(3):003247. PubMed
  11. 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

See these in context on the Burdock monograph →

Sage 27 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Todorov S, Philianos S, Petkov V, et al. Experimental pharmacological study of three species from genus Salvia. Acta Physiol Pharmacol (Bulg) 1984;10:13-20.
  3. Perry NS, Bollen C, Perry EK, Ballard C. Salvia for dementia therapy: review of pharmacological activity and pilot tolerability clinical trial. Pharmacol Biochem Behav 2003;75:651-9.. PubMed
  4. Saller R, Buechi S, Meyrat R, Schmidhauser C. Combined herbal preparation for topical treatment of Herpes labialis. Forsch Komplementarmed Klass Naturheilkd 2001;8:373-82. PubMed
  5. Akhondzadeh S, Noroozian M, Mohammadi M, et al. Salvia officinalis extract in the treatment of patients with mild to moderate Alzheimer's disease: a double blind, randomized and placebo-controlled trial. J Clin Pharm Ther 2003;28:53-9.
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See these in context on the Sage monograph →

Red Clover 24 references
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See these in context on the Red Clover monograph →

Pau D'arco 6 references
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See these in context on the Pau D'arco monograph →

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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.

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