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

Saw Palmetto Plus Ingredients & Drug Interactions

by Pure Encapsulations

Saw Palmetto Plus label
See full label image
Softgel Capsule Category: Botanical With Nutrients
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Saw Palmetto Plus 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

Saw Palmetto Plus is a dietary supplement by Pure Encapsulations with 5 active ingredients. Its ingredients are commonly taken for general antioxidant support, skin and hair care, heart health.Based on those ingredients, 925 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Vitamin E, Saw Palmetto (Serenoa repens) extract, Nettle (Urtica dioica) 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 Saw Palmetto Plus by Pure Encapsulations

Ask about any prescription or over-the-counter medication and we check it for interactions with Saw Palmetto Plus by Pure Encapsulations — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Saw Palmetto Plus by Pure Encapsulations

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 10, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 5 of its 5 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Saw Palmetto Plus contains 5 active ingredients. Vitamin E is included for its antioxidant role.

Nettle (Urtica dioica) extract, pumpkin (Cucurbita pepo) oil, saw palmetto (Serenoa repens) extract, and pygeum (Pygeum africanum) extract are herbal ingredients traditionally used for prostate and urinary health. The product also contains gelatin capsule, beeswax, and sunflower lecithin as inactive ingredients.

Does it work?

Strong 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
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: urinary function and prostate health.
  • We looked for evidence on: Benign prostatic hyperplasia (BPH), Non-neurogenic lower urinary tract symptoms (LUTS), Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS), Overactive bladder, Urinary retention.
  • The strongest evidence on file: Pygeum is rated "Likely Effective" for Benign prostatic hyperplasia (BPH) (Natural Medicines).
  • Also on file: Pumpkin is rated "Possibly Effective" for Benign prostatic hyperplasia (BPH).
  • Also on file: Saw Palmetto is rated "Possibly Ineffective" for Benign prostatic hyperplasia (BPH).

The evidence for this product's ingredients is mixed. Pygeum is likely effective for benign prostatic hyperplasia (enlarged prostate).

Saw palmetto is possibly effective for transurethral resection of the prostate but possibly ineffective for benign prostatic hyperplasia itself — the research doesn't clearly support it for general prostate enlargement. Pumpkin oil is possibly effective for benign prostatic hyperplasia.

For vitamin E, evidence supports it in vitamin E deficiency and a rare genetic condition called AVED; it's possibly effective for Alzheimer's disease and a few other conditions, but not specifically for prostate health. Nettle has possibly effective evidence for diabetes but insufficient evidence for most other uses, including prostate or urinary symptoms.

The combination's effectiveness for prostate or urinary symptoms as a whole isn't established in the data we hold.

The evidence, ingredient by ingredient Vitamin E Stinging Nettle Pumpkin Saw Palmetto Pygeum

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 5 of the 5 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 5 of 5.
  • General safety write-ups exist for 5 of 5.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitamin E is generally well tolerated at dietary amounts, but high-dose long-term supplements may raise the risk of bleeding, hemorrhagic stroke, and other harms — caution is advised. Nettle is generally well tolerated for most adults but carries rare reports of liver injury; it should be avoided in pregnancy due to traditional concerns about effects on the uterus, and during breastfeeding due to insufficient safety data.

Pumpkin products are generally well tolerated; pumpkin seed oil caused mild abdominal discomfort in trials. Saw palmetto is well tolerated with mild, infrequent, reversible side effects like abdominal pain, diarrhea, headache, and nausea, though rare cardiovascular events have been reported; it should be avoided in pregnancy and while breastfeeding.

Pygeum is generally well tolerated short-term, though quality and long-term safety data are limited; it should be avoided in pregnancy and breastfeeding.

Side effects, ingredient by ingredient Vitamin E Stinging Nettle Pumpkin Saw Palmetto Pygeum

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 5 matched ingredients can interact with medications — Stinging Nettle, Pumpkin, Vitamin E, Saw Palmetto.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; cancer treatments; diabetes medications; lithium.
  • For scale: 926 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 you take Saw Palmetto Plus, check with your doctor or pharmacist if you're on anticoagulant or antiplatelet drugs (blood thinners like warfarin or aspirin) — vitamin E and saw palmetto both increase bleeding risk. Also double-check if you take antidiabetes drugs, diuretics, lithium, estrogens, contraceptive drugs, CYP3A4 substrates (many common medications), chemotherapy, niacin, or cyclosporine — all carry Moderate interactions with one or more ingredients.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product combines saw palmetto and pygeum — ingredients used traditionally for prostate health — with vitamin E, nettle, and pumpkin oil. Pygeum shows the strongest evidence for benign prostatic hyperplasia.

However, if you take blood thinners, diabetes medications, lithium, hormonal birth control, estrogen therapy, or chemotherapy, you'll need to talk this over with your doctor or pharmacist before starting — the interactions are real and worth checking against your exact medications. Pregnant women and those breastfeeding should avoid this product.

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

Assessment coverage: 5 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 25, 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 Saw Palmetto Plus, straight from the product label.

Brand Pure Encapsulations
Barcode (UPC) 766298002354
Net contents 60 Sofgel Capsule(s)
Market status On market
Date entered into DSLD Feb 25, 2019
DSLD ID 188671
Product type Botanical With Nutrients
Supplement form Softgel Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
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 Saw Palmetto Plus by Pure Encapsulations, 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 Capsule(s)
Maximum serving Sizes:
2 Softgel Capsule(s)
Servings per container
30
UPC/BARCODE
766298002354
IngredientAmount% DV
Calories20 Calorie(s)--
Vitamin E13 mg89%
Total Fat2 Gram(s)3%
Nettle (Urtica dioica) extract400 mg--
Pumpkin (Cucurbita pepo) Oil640 mg--
Saw Palmetto (Serenoa repens) extract320 mg--
Pygeum (Pygeum africanum) extract40 mg--

Other ingredients: Gelatin Capsule, Beeswax, Sunflower Lecithin

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.
Suggested/Recommended/Usage/Directions

Store in a cool, dry place.

Recommendations: As a dietary supplement, take 2 capsules, 1–2 times daily, between meals.

Precautions

Warning: Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, consult your health professional before use.

Keep out of the reach of children.

Use only if safety seal is intact.

General Statements

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our hypoallergenic supplements

Formula

With nettle root extract; Enhanced support for urinary function and prostate health

With nettle root extract; Enhanced support for urinary function and prostate health

Formulation

Gluten-free, Non-GMO & Hypoallergenic

Gluten-free, Non-GMO & Hypoallergenic

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

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

General

v8 code: SP6

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

See for yourself

Saw Palmetto Plus by Pure Encapsulations label

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

Saw Palmetto Plus 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 Saw Palmetto Plus by Pure Encapsulations

These are the 5 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Softgel Capsule(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.

Vitamin E

Interacts with
764 drugs
13 mg per serving Form: D-Alpha-Tocopherol

Vitamin E is an essential fat-soluble vitamin and antioxidant that most people get in adequate amounts from a normal diet. Supplements can help correc...

Vitamin E monograph & interactions

Nettle (Urtica dioica) extract

Interacts with
164 drugs
400 mg per serving

Stinging nettle is a common plant used as food and in traditional medicine, most often for prostate symptoms, allergies, and joint pain. The evidence...

Nettle (Urtica dioica) extract monograph & interactions

Pumpkin (Cucurbita pepo) Oil

Interacts with
1 drug
640 mg per serving

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...

Pumpkin (Cucurbita pepo) Oil monograph & interactions

Saw Palmetto (Serenoa repens) extract

Interacts with
174 drugs
320 mg per serving Form: total Fatty Acids

Saw palmetto is a plant extract most often used for urinary symptoms linked to an enlarged prostate (BPH). The best research suggests it works no bett...

Saw Palmetto (Serenoa repens) extract monograph & interactions

Pygeum (Pygeum africanum) extract

No known
interactions
40 mg per serving

Pygeum is an extract from the bark of the African cherry tree that is most often used to ease urinary symptoms linked to an enlarged prostate. Some st...

Pygeum (Pygeum africanum) extract monograph & interactions

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

Interaction report

Saw Palmetto Plus by Pure Encapsulations Drug Interactions

Want to check YOUR meds against Saw Palmetto Plus?

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
925Drugs
924 Moderate 1 Minor

Ingredients driving the most interactions

Vitamin E 764
Saw Palmetto (Serenoa repens) extract 174
Nettle (Urtica dioica) extract 164
Pumpkin (Cucurbita pepo) Oil 1

Individual Drug Interactions

The ingredients in Saw Palmetto Plus interact with 925 drugs. Click any drug to see the details.

4 of the 5 ingredients in Saw Palmetto Plus interact with drugs. Each result below shows which ingredient is responsible. Vitamin E Saw Palmetto (Serenoa repens) extract Nettle (Urtica dioica) extract Pumpkin (Cucurbita pepo) Oil

Each ingredient & the kinds of drugs it affects

For each ingredient in Saw Palmetto Plus 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.

Vitamin E8 drug types · 764 drugs

Alkylating Agents

Theoretically, antioxidant effects of vitamin E might reduce the effectiveness of alkylating agents.
There's concern that antioxidants could reduce the activity of chemotherapy drugs which generate free radicals, such as cyclophosphamide, chlorambucil, carmustine, busulfan, and thiotepa. However, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that might interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as vitamin E have on chemotherapy. Advise patients to consult their oncologist before using vitamin E supplements, especially in high doses.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Concomitant use of vitamin E and anticoagulant or antiplatelet agents might increase the risk of bleeding.
Vitamin E seems to inhibit of platelet aggregation and antagonize the effects of vitamin K-dependent clotting factors. These effects appear to be dose-dependent, and are probably only likely to be clinically significant with doses of at least 800 units daily. Mixed tocopherols, such as those found in food, might have a greater antiplatelet effect than alpha-tocopherol. RRR alpha-tocopherol (natural vitamin E) 1000 IU daily antagonizes vitamin K-dependent clotting factors. Advise patients to avoid high doses of vitamin E, especially in people with low vitamin K intake or other risk factors for bleeding.

Likelihood Possible Evidence B
Antitumor Antibiotics

Theoretically, antioxidant effects of vitamin E might reduce the effectiveness of antitumor antibiotics.
There's concern that antioxidants could reduce the activity of antitumor antibiotic drugs such as doxorubicin, which generate free radicals. However, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that might interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as vitamin E have on chemotherapy involving antitumor antibiotics. Advise patients to consult their oncologist before using vitamin E supplements, especially in high doses.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

A specific form of vitamin E might increase absorption and levels of cyclosporine.
There is some evidence that one specific formulation of vitamin E (D-alpha-tocopheryl-polyethylene glycol-1000 succinate, TPGS, tocophersolan, Liqui-E) might increase absorption of cyclosporine. This vitamin E formulation forms micelles which seems to increase absorption of cyclosporine by 40% to 72% in some patients. However, this interaction is unlikely to occur with the usual forms of vitamin E.

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

Theoretically, vitamin E might induce metabolism of CYP3A4, possibly reducing the levels CYP3A4 substrates.
Vitamin E appears to bind with the nuclear receptor, pregnane X receptor (PXR), which results in increased expression of CYP3A4. Although the clinical significance of this is not known, use caution when considering concomitant use of vitamin E and other drugs affected by these enzymes.

Likelihood Possible Evidence D
Selumetinib (Koselugo)

Taking selumetinib with vitamin E can result in a total daily dose of vitamin E that exceeds safe limits and therefore might increase the risk of bleeding.
Selumetinib contains 48-54 IU vitamin E per capsule. The increased risk of bleeding with vitamin E appears to be dose-dependent. Be cautious when using selumetinib in combination with supplemental vitamin E, especially in patients at higher risk of bleed, such as those with chronic conditions and those taking antiplatelet drugs.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Using vitamin E with warfarin might increase the risk of bleeding.
Due to interference with production of vitamin K-dependent clotting factors, use of more than 400 IU of vitamin E daily with warfarin might increase prothrombin time (PT), INR, and the risk of bleeding,. At a dose of 1000 IU per day, vitamin E can antagonize vitamin K-dependent clotting factors even in people not taking warfarin. Limited clinical evidence suggests that doses up to 1200 IU daily may be used safely by patients taking warfarin, but this may not be applicable in all patient populations.

Likelihood Possible Evidence B
Niacin

Vitamin E might decrease the beneficial effects of niacin on high-density lipoprotein (HDL) cholesterol levels.
A combination of niacin and simvastatin (Zocor) effectively raises high-density lipoprotein (HDL) cholesterol levels in people with coronary disease and low HDL levels. Clinical research shows that taking a combination of antioxidants (vitamin C, vitamin E, beta-carotene, and selenium) along with niacin and simvastatin (Zocor) attenuates this rise in HDL, specifically the HDL-2 and apolipoprotein A1 fractions, by more than 50%. Vitamin E alone combined with a statin does not seem to decrease HDL levels. It is not known whether the adverse effect on HDL is due to one of the other antioxidants or to the combination. It also is not known whether it will occur in other patient populations.

Likelihood Possible Evidence A
Vitamin E full monograph & interactions

Saw Palmetto (Serenoa repens) extract3 drug types · 174 drugs

Anticoagulant/Antiplatelet Drugs

Saw palmetto might increase the risk of bleeding with anticoagulant or antiplatelet drugs.
Saw palmetto is reported to prolong bleeding time. Theoretically, it might increase the risk of bleeding when used concomitantly with anticoagulant or antiplatelet drugs.

Likelihood Possible Evidence D
Contraceptive Drugs

Saw palmetto might reduce the effectiveness of contraceptive drugs.
Saw palmetto might have antiestrogenic effects. Theoretically, it might interfere with contraceptive drugs taken concomitantly.

Likelihood Possible Evidence B
Estrogens

Saw palmetto might reduce the effectiveness of estrogens.
Saw palmetto might have antiestrogenic effects. Theoretically, it might interfere with estrogens taken concomitantly.

Likelihood Possible Evidence B
Saw Palmetto (Serenoa repens) extract full monograph & interactions

Nettle (Urtica dioica) extract4 drug types · 164 drugs

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.

Likelihood Possible Evidence B
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.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence D
Nettle (Urtica dioica) extract full monograph & interactions

Pumpkin (Cucurbita pepo) Oil1 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
Pumpkin (Cucurbita pepo) Oil full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Saw Palmetto Plus, from the product label.

Pure Encapsulations

See all Pure Encapsulations products
Name
Pure Encapsulations
Street Address
490 Boston Post Road
City
Sudbury
State
MA
Phone Number
1-800-753-2277
Web Address
www.PureEncapsulations.com
Pharmacist Counseling Corner

Saw Palmetto Plus by Pure Encapsulations: Common Questions

Does Saw Palmetto Plus by Pure Encapsulations interact with any medications?
Yes. Based on its ingredients, Saw Palmetto Plus has a known interaction with 925 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Saw Palmetto Plus contains 5 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.
Will this help my prostate?
Pygeum is likely effective for benign prostatic hyperplasia, so there's real evidence behind one ingredient. Saw palmetto shows possibly effective evidence for a specific prostate procedure but possibly ineffective evidence for general prostate enlargement — the science is mixed. Pumpkin oil is possibly effective. Overall, the combination's true benefit for prostate symptoms isn't established in our data.
Is it safe if I'm on blood thinners?
No — vitamin E and saw palmetto both increase your bleeding risk when combined with anticoagulants or antiplatelet drugs like warfarin or aspirin. Talk to your doctor or pharmacist before you start this product; they may need to monitor you or adjust your dose.
Can I take it if I'm pregnant or breastfeeding?
No — saw palmetto and nettle should be avoided in pregnancy due to safety concerns, and safety data during breastfeeding are insufficient for all the herbal ingredients in this product. Talk to your doctor or pharmacist about whether it's right for you.
What does the nettle do?
Nettle extract is included for its traditional use in urinary and prostate health. It has possibly effective evidence for diabetes — it may lower blood sugar — but insufficient evidence for urinary or prostate symptoms specifically.
Are there any common side effects?
Saw palmetto commonly causes mild, reversible side effects like abdominal pain, diarrhea, headache, and nausea. Nettle may cause constipation or diarrhea. Pumpkin can cause abdominal discomfort, nausea, and diarrhea. Overall, these ingredients are generally well tolerated.
Will this affect my birth control?
Yes — saw palmetto may interfere with contraceptive effectiveness due to antiestrogenic effects. Talk to your doctor or pharmacist before taking this product if you're on hormonal birth control.

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

Not sure if Saw Palmetto Plus is safe with your meds?

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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.

Saw Palmetto Plus label
Go deeper

The Full Monographs Behind Saw Palmetto Plus’s Ingredients

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

Herb & supplement monograph

Vitamin E

Interacts with 764 drugs

Vitamin E is an essential fat-soluble vitamin and antioxidant that most people get in adequate amounts from a normal diet. Supplements can help correct a true deficiency, but high-dose vitam...

Read the full Vitamin E monograph → Herb & supplement monograph

Stinging Nettle

Interacts with 164 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 is mixed and mostly preliminary, so it i...

Read the full Stinging Nettle monograph → 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

Saw Palmetto

Interacts with 174 drugs

Saw 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 → Herb & supplement monograph

Pygeum

Pygeum is an extract from the bark of the African cherry tree that is most often used to ease urinary symptoms linked to an enlarged prostate. Some studies suggest modest benefit for these s...

Read the full Pygeum monograph →
Sources

Sources & How We Checked

Saw Palmetto Plus'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 117 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.

Vitamin E 64 references
  1. Kim JM, White RH. Effect of vitamin E on the anticoagulant response to warfarin. Am J Cardiol 1996;77:545-6. PubMed
  2. Corrigan JJ Jr. The effect of vitamin E on warfarin-induced vitamin K deficiency. Ann N Y Acad Sci 1982;393:361-8. PubMed
  3. Corrigan JJ Jr. Coagulation problems relating to vitamin E. Am J Pediatr Hematol Oncol 1979;1:169-73.
  4. Corrigan JJ Jr, Marcus FI. Coagulopathy associated with vitamin E ingestion. JAMA 1974;230:1300-1. DOI
  5. Labriola D, Livingston R. Possible interactions between dietary antioxidants and chemotherapy. Oncology 1999;13:1003-8.
  6. Chang T, Benet LZ, Hebert MF. The effect of water-soluble vitamin E on cyclosporine pharmacokinetics in healthy volunteers. Clin Pharmacol Ther 1996;59:297-303. PubMed
  7. Pan SH, Lopez RR Jr, Sher LS, et al. Enhanced oral cyclosporine absorption with water-soluble vitamin E early after liver transplantation. Pharmacother 1996;16:59-65. DOI
  8. Anon. Dietary supplementation with n-3 polyunsaturated fatty acids and vitamin E after myocardial infarction: results of the GISSI-Prevenzione trial. Gruppo Italiano per lo Studio della Soprawivenza nell'Infarto miocardico. Lancet 1999;354:447-55. DOI
  9. Chappell LC, Seed PT, Briley AL, et al. Effect of antioxidants on the occurrence of pre-eclampsia in women at increased risk: a randomised trial. Lancet 1999;354:810-6. DOI
  10. Yusuf S, Dagenais G, Pogue J, et al. Vitamin E supplementation and cardiovascular events in high-risk patients. The heart outcomes prevention evaluation study investigators. N Engl J Med 2000;342:154-60. PubMed
  11. Stephens NG, Parsons A, Schofield PM, et al. Randomised controlled trial of vitamin E in patients with coronary disease: Cambridge Heart Antioxidant Study. Lancet 1996;347:781-6.
  12. The Alpha-Tocopherol, Beta Carotene Cancer Prevention Study Group. The effect of vitamin E and beta carotene on the incidence of lung cancer and other cancers in male smokers. N Engl J Med 1994;330:1029-35. PubMed
  13. Takahashi O. Haemorrhagic toxicity of a large dose of alpha-, beta-, gamma- and delta-tocopherols, ubiquinone, beta-carotene, retinol acetate and L-ascorbic acid in the rat. Food Chem Toxicol 1995;33:121-8.
  14. Briggs GB, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 5th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 1998.
  15. Sano M, Ernesto C, Thomas RG, et al. A controlled trial of selegiline, alpha-tocopherol, or both as treatment for Alzheimer's disease. The Alzheimer's Disease Cooperative Study. N Engl J Med 1997;336:1216-22. PubMed
  16. Liede KE, Haukka JK, Saxen LM, Heinonen OP. Increased tendency towards gingival bleeding caused by joint effect of alpha-tocopherol supplementation and acetylsalicylic acid. Ann Med 1998;30:542-6.
  17. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington, DC: National Academy Press, 2000. Available at: http://www.nap.edu/books/0309069351/html/.
  18. Brown BG, Zhao XQ, Chait A, et al. Simvastatin and niacin, antioxidant vitamins, or the combination for the prevention of coronary disease. N Engl J Med 2001;345:1583-93. DOI
  19. Liu M, Wallmon A, Olsson-Mortlock C, et al. Mixed tocopherols inhibit platelet aggregation in humans: potential mechanisms. Am J Clin Nutr 2003;77:700-6. PubMed
  20. Sokol RJ, Johnson KE, Karrer FM, et al. Improvement of cyclosporin absorption in children after liver transplantation by means of water-soluble vitamin E. Lancet 1991;338:212-4.. PubMed
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Stinging Nettle 23 references
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Pumpkin 5 references
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Saw Palmetto 22 references
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Pygeum 3 references
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