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

Go-Less Maximum Strength Ingredients & Drug Interactions

by Swanson

Go-Less Maximum Strength label
See full label image
Softgel Capsule Category: Other Combinations
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 Go-Less Maximum Strength 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

Go-Less Maximum Strength is a dietary supplement by Swanson with 2 active ingredients. Its ingredients are commonly taken for benign prostatic hyperplasia (bph) symptoms, overactive bladder, eye and skin health (vitamin a source).Based on those ingredients, 868 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Isoflavone Glycosides, Go-Less Pumpkin seed 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 Go-Less Maximum Strength by Swanson

Ask about any prescription or over-the-counter medication and we check it for interactions with Go-Less Maximum Strength by Swanson — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Go-Less Maximum Strength by Swanson

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 Aug 6, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • “Bladder Control Phytoestrogen Complex” is a proprietary blend — the label doesn't break down how much of each component you get.

Go-Less Maximum Strength contains 2 active ingredients. The first is a Bladder Control Phytoestrogen Complex, which is a blend of plant-derived estrogen-like compounds; we hold no separate interaction data for its components, so the details are listed individually below.

The second is pumpkin seed extract, a concentrated form of seed oil that contributes to the product's intended urinary support. The third active ingredient is isoflavone glycosides, plant compounds sourced from red clover that have estrogen-like activity in the body.

The product also contains several inactive ingredients — rice bran oil, gelatin, glycerin, maltodextrin, purified water, annatto extract, yellow beeswax, soy lecithin, and titanium dioxide — which serve as fillers, binders, and capsule materials.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: support healthy bladder and urinary tract function.
  • We looked for evidence on: Overactive bladder, Urinary tract infections (UTIs), Interstitial cystitis, Urinary urgency, Urinary frequency, Nocturia.
  • The closest evidence on file: Pumpkin is rated "Insufficient Reliable Evidence To Rate" for Interstitial cystitis (Natural Medicines).
  • Also on file: Pumpkin is rated "Insufficient Reliable Evidence To Rate" for Urinary tract infections (UTIs), Overactive bladder.

Pumpkin seed extract is rated Possibly Effective for benign prostatic hyperplasia (BPH), a common condition in older men in which the prostate gland becomes enlarged. For other uses — hair loss, interstitial cystitis (a bladder pain condition), intestinal parasite infection, and urinary tract infections — the evidence is Insufficient, meaning we don't have enough reliable data to know whether it works.

Red clover isoflavones are also rated Insufficient evidence for the conditions listed in the product facts: hair loss, menopausal symptoms, osteoarthritis, and osteoporosis. The evidence base for this product's stated purpose (bladder support) is not established in the data we hold.

The evidence, ingredient by ingredient Pumpkin Red Clover

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Pumpkin seed products are generally well tolerated in adults. The most common side effects are mild — abdominal discomfort, diarrhea, nausea, and vomiting — though a rare case of anaphylaxis has been reported.

There are two case reports of temporary hair loss linked to high levels of a natural toxin (cucurbitacin) in bitter-tasting wild pumpkins, though commercial pumpkin supplements are unlikely to contain this. Red clover is well tolerated short-term in healthy adults, though its estrogen-like activity means certain people need to be cautious.

Common side effects include muscle pain, nausea, and vaginal spotting. Because of its estrogenic effects, the safety data advises against red clover during pregnancy and breastfeeding.

There's also theoretical concern that high isoflavone intake might slightly increase breast density in younger women, though studies of red clover and isolated isoflavones have been mixed.

Side effects, ingredient by ingredient Pumpkin Red Clover

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?
  • 2 of the 2 matched ingredients can interact with medications — Red Clover, Pumpkin.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; lithium.
  • For scale: 869 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, check with your doctor or pharmacist if you take estrogen therapy or other hormone medications (the red clover content may interfere), lithium (pumpkin may raise its levels), methotrexate (moderate toxicity risk reported with red clover), tamoxifen (red clover may reduce its effectiveness), or any drugs metabolized through your liver's CYP1A2, CYP2C9, CYP2C19, or CYP3A4 pathways. Also mention any blood thinners or antiplatelet drugs, though clinical evidence of interaction is lacking.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Go-Less Maximum Strength may be worth considering if you have urinary symptoms and your doctor has ruled out underlying conditions — pumpkin seed extract has some evidence for prostate enlargement specifically. However, this product carries multiple drug interactions, especially with estrogen therapy, methotrexate, tamoxifen, and lithium, and shouldn't be used during pregnancy or breastfeeding.

Check your medications against the interaction tool on this page, and talk with your doctor or pharmacist before you start, especially if you take hormone therapy or any prescription drugs.

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 Jun 24, 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 Go-Less Maximum Strength, straight from the product label.

Brand Swanson
Barcode (UPC) 087614021980
Net contents 90 Softgel(s)
Market status On market
Date entered into DSLD Jun 24, 2019
DSLD ID 203710
Product type Other Combinations
Supplement form Softgel Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Go-Less Maximum Strength by Swanson, 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:
2 Softgel(s)
Maximum serving Sizes:
3 Softgel(s)
Servings per container
30
UPC/BARCODE
087614021980
IngredientAmount% DV
Bladder Control Phytoestrogen Complex0 NP, 0 NP--
Go-Less Pumpkin seed extract540 mg, 810 mg--
Isoflavone Glycosides30 mg, 45 mg--

Other ingredients: Rice Bran Oil, Gelatin, Glycerin, Maltodextrin, purified Water, Annatto extract, yellow Beeswax, Soy Lecithin, Titanium Dioxide

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

Formulated specifically to support healthy bladder function Promotes urinary tract health

Science-Backed Quality Since 1969

Bladder control formula Urinary tract health

Servings Per Container 30-45

Formula

Features soy extract plus pumpkin seed extract

Contains soy.

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take three softgels two times per day for the first two weeks. Thereafter, take two softgels two times per day.

Brand IP Statement(s)

The Go-Less trademark and logo are the intellectual property of Frutarom, Inc. Go-Less is protected by U.S. patents #6,497,906 and #7,045,155 under license from Novogen Research.

Precautions

Warning: For adults only.

Consult your physician before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Keep out of reach of children.

Do not use if seal is broken.

Contains soy.

Storage

Store in a cool, dry place. Do not refrigerate.

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.

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Go-Less Maximum Strength by Swanson label

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

Go-Less Maximum Strength 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 Go-Less Maximum Strength by Swanson

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Softgel(s) Dosage formSoftgel Capsule Servings per container30 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.

Bladder Control Phytoestrogen Complex

0 NP per serving

Other (inactive) ingredients: Rice Bran Oil, Gelatin, Glycerin, Maltodextrin, Purified Water, Annatto extract, Yellow Beeswax, Soy Lecithin, Titanium Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Go-Less Maximum Strength by Swanson Drug Interactions

Want to check YOUR meds against Go-Less Maximum Strength?

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
868Drugs
45 Moderate 823 Minor

Ingredients driving the most interactions

Isoflavone Glycosides 867
Go-Less Pumpkin seed extract 1

Individual Drug Interactions

The ingredients in Go-Less Maximum Strength interact with 868 drugs. Click any drug to see the details.

2 of the 2 ingredients in Go-Less Maximum Strength interact with drugs. Each result below shows which ingredient is responsible. Isoflavone Glycosides Go-Less Pumpkin seed extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Go-Less Maximum Strength 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.

Isoflavone Glycosides9 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
Isoflavone Glycosides full monograph & interactions

Go-Less Pumpkin seed extract1 drug type · 1 drug

Lithium

Pumpkin might reduce excretion and increase levels of lithium.
Pumpkin is thought to have diuretic properties. Theoretically, this might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Go-Less Pumpkin seed extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Go-Less Maximum Strength, from the product label.

Swanson

See all Swanson products
Name
Swanson Health Products
City
Fargo
State
ND
ZipCode
58104
Phone Number
1-800-437-4148
Web Address
swanson.com
Pharmacist Counseling Corner

Go-Less Maximum Strength by Swanson: Common Questions

Does Go-Less Maximum Strength by Swanson interact with any medications?
Yes. Based on its ingredients, Go-Less Maximum Strength has a known interaction with 868 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Go-Less Maximum Strength contains 2 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.
Can I take this if I'm pregnant or breastfeeding?
No. The red clover isoflavones in this product carry estrogen-like effects, and the safety data advises against use during pregnancy. Breastfeeding safety is also not well studied. Talk with your doctor or pharmacist before considering it.
Does pumpkin seed extract actually help with bladder control?
Pumpkin seed extract is rated Possibly Effective for benign prostatic hyperplasia (BPH), an enlarged prostate in older men. For general urinary or bladder symptoms, the evidence is Insufficient — we don't have enough reliable data to know if it works for that purpose.
What are the most common side effects?
From the pumpkin seed extract, you might experience mild abdominal discomfort, diarrhea, nausea, or vomiting. From the red clover isoflavones, common side effects include muscle pain, nausea, and vaginal spotting. Serious side effects are rare.
What's the Bladder Control Phytoestrogen Complex in this product?
It's a blend of plant-derived estrogen-like compounds (phytoestrogens) designed to support bladder function. The product's label doesn't break down the individual components in the facts we hold, so the specific herbs or extracts aren't detailed here.
Does this interact with blood thinners like warfarin?
Red clover has a Minor-severity theoretical risk with blood thinners and antiplatelet drugs, but clinical research hasn't actually shown this effect in real patients. Still, mention all your medications to your doctor or pharmacist before starting.

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

Not sure if Go-Less Maximum Strength is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Go-Less Maximum Strength label
Go deeper

The Full Monographs Behind Go-Less Maximum Strength’s Ingredients

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

Herb & supplement monograph

Pumpkin

Interacts with 1 drug

Pumpkin is a nutritious squash, and its seeds and seed oil are the parts most often used as supplements, mainly for urinary and prostate symptoms. The evidence for these uses is limited and...

Read the full Pumpkin 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 →
Sources

Sources & How We Checked

Go-Less Maximum Strength'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 29 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.

Pumpkin 5 references
  1. Marks L, Partin AW, Epstein JI, et al. Effects of a saw palmetto herbal blend in men with symptomatic benign prostatic hyperplasia. J Urol 2000;163:1451-6. DOI
  2. Cho YH, Lee SY, Jeong DW, et al. Effect of pumpkin seed oil on hair growth in men with androgenetic alopecia: a randomized, double-blind, placebo-controlled trial. Evid Based Complement Alternat Med 2014;2014:549721. PubMed
  3. Vahlensieck W, Theurer C, Pfitzer E, Patz B, Banik N, Engelmann U. Effects of pumpkin seed in men with lower urinary tract symptoms due to benign prostatic hyperplasia in the one-year, randomized, placebo-controlled GRANU study. Urol Int 2015;94(3):286-95 PubMed
  4. Assouly P. Hair loss associated with cucurbit poisoning. JAMA Dermatol. 2018 May 1;154(5):617-618. PubMed
  5. Gawryjolek J, Ludwig H, Zbikowska-Götz M, Bartuzi Z, Krogulska A. Anaphylaxis after consumption of pumpkin seeds in a 2-y-old child tolerant to its pulp: A case study. Nutrition 2021;89:111272. PubMed

See these in context on the Pumpkin monograph →

Red Clover 24 references
  1. Kurzer MS, Xu X. Dietary phytoestrogens. Annu Rev Nutr 1997;17:353-81. PubMed
  2. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  3. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  4. This P, De La Rochefordiere A, Clough K, et al. Phytoestrogens after breast cancer. Endocr Relat Cancer 2001;8:129-34. PubMed
  5. Tice J, Cummings SR, Ettinger B, et al. Few adverse effects of two red clover extracts rich in phytoestrogens: a multicenter, placebo-controlled trial. Alt Ther 2001;7:S33.
  6. Ingram DM, Hickling C, West L, et al. A double-blind randomized controlled trial of isoflavones in the treatment of cyclical mastalgia. The Breast 2002;11:170-4. PubMed
  7. Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
  8. Cheong JL, Bucknall R. Retinal vein thrombosis associated with a herbal phytoestrogen preparation in a susceptible patient. Postgrad Med J 2005;81:266-7.. PubMed
  9. Geller SE, Shulman LP, van Breemen RB, et al. Safety and efficacy of black cohosh and red clover for the management of vasomotor symptoms: a randomized controlled trial. Menopause 2009;16:1156-66. PubMed
  10. Hidalgo LA, Chedraui PA, Morocho N, et al. The effect of red clover isoflavones on menopausal symptoms, lipids and vaginal cytology in menopausal women: a randomized, double-blind, placebo-controlled study. Gynecol Endocrinol 2005;21(5):257-264. PubMed
  11. Campbell MJ, Woodside JV, Honour JW, et al. Effect of red clover-derived isoflavone supplementation on insulin-like growth factor, lipid and antioxidant status in healthy female volunteers: a pilot study. Eur J Clin Nutr 2004;58(1):173-179. PubMed
  12. Guerrero JA, Lozano ML, Castillo J, et al. Flavonoids inhibit platelet function through binding to the thromboxane A2 receptor. J Thromb Haemost 2005;3(2):369-376. PubMed
  13. Kondo K, Suzuki Y, Ikeda Y, Umemura K. Genistein, an isoflavone included in soy, inhibits thrombotic vessel occlusion in the mouse femoral artery and in vitro platelet aggregation. Eur J Pharmacol 2002;455(1):53-57. PubMed
  14. Polini N, Rauschemberger MB, Mendiberri J, et al. Effect of genistein and raloxifene on vascular dependent platelet aggregation. Mol Cell Endocrinol 2007;267(1-2):55-62. PubMed
  15. Wuttke W, Jarry H, Seidlova-Wuttke D. Plant-derived alternative treatments for the aging male: facts and myths. Aging Male 2010;13(2):75-81. PubMed
  16. Villaseca P. Non-estrogen conventional and phytochemical treatments for vasomotor symptoms: what needs to be known for practice. Climacteric 2012;15(2):115-124. PubMed
  17. Chen, Y., Xiao, C. Q., He, Y. J., Chen, B. L., Wang, G., Zhou, G., Zhang, W., Tan, Z. R., Cao, S., Wang, L. P., and Zhou, H. H. Genistein alters caffeine exposure in healthy female volunteers. Eur.J Clin.Pharmacol. 2011;67(4):347-353. PubMed
  18. Friedman, J. A., Taylor, S. A., McDermott, W., and Alikhani, P. Multifocal and recurrent subarachnoid hemorrhage due to an herbal supplement containing natural coumarins. Neurocrit.Care 2007;7(1):76-80. PubMed
  19. Hooper, L., Madhavan, G., Tice, J. A., Leinster, S. J., and Cassidy, A. Effects of isoflavones on breast density in pre- and post-menopausal women: a systematic review and meta-analysis of randomized controlled trials. Hum.Reprod.Update. 2010;16(6):745-7 PubMed
  20. Orr A and Parker R. Red clover causing symptoms suggestive of methotrexate toxicity in a patient on high-dose methotrexate. Menopause Int. 2013;19(3):133-134. PubMed
  21. Clifton-Bligh PB, et al. Red cover isoflavones enriched with formononetin lower serum LDL cholesterol- a randomized, double-blind, placebo-controlled trial. Eur J Clin Nutr. 2015;69(1):134-142.
  22. Risk assessment for peri- and post-menopausal women taking food supplements containing isolated isoflavones. EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS). 2015. DOI
  23. Ferraris C, Ballestra B, Listorti C, et al. Red clover and lifestyle changes to contrast menopausal symptoms in premenopausal patients with hormone-sensitive breast cancer receiving tamoxifen. Breast Cancer Res Treat 2020;180(1):157-65. doi: 10.1007/s1054 PubMed
  24. Chen L, Choi J, Leonard SW, et al. No Clinically Relevant Pharmacokinetic Interactions of a Red Clover Dietary Supplement with Cytochrome P450 Enzymes in Women. J Agric Food Chem. 2020;68(47):13929-13939. PubMed

See these in context on the Red Clover monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team