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Dietary supplement

Prostate Formula Ingredients & Drug Interactions

by Nature's Lab

Prostate Formula label
See full label image
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 Prostate Formula 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

Prostate Formula is a dietary supplement by Nature's Lab with 6 active ingredients. Its ingredients are commonly taken for heart health, prostate health, antioxidant support.Based on those ingredients, 409 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Selenium, Saw Palmetto extract, Lycopene. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Prostate Formula by Nature's Lab

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

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HelloPharmacist Scorecard of Prostate Formula by Nature's Lab

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 3, 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 6 of its 6 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Nature's Lab Prostate Formula contains 6 active ingredients. Lycopene is a carotenoid antioxidant from tomatoes thought to support prostate health.

Zinc is an essential mineral involved in immune function and tissue repair. Pumpkin seed oil powder comes from pumpkin seeds and may support urinary tract health.

Selenium is a trace mineral that acts as an antioxidant. Saw palmetto extract comes from the berry of a palm plant and is used traditionally for prostate support.

The formula also includes organic maca gelatinized powder, an herbal root used for general wellness. The capsules contain inactive ingredients: hydroxypropyl methylcellulose, rice hull concentrate, and magnesium stearate.

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: support prostate and bladder health.
  • We looked for evidence on: Benign prostatic hyperplasia (BPH), Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS), urinary function, overactive bladder, prostate inflammation.
  • The strongest evidence on file: Pumpkin is rated "Possibly Effective" for Benign prostatic hyperplasia (BPH) (Natural Medicines).
  • Also on file: Saw Palmetto is rated "Possibly Ineffective" for Benign prostatic hyperplasia (BPH).
  • Also on file: Lycopene is rated "Insufficient Reliable Evidence To Rate" for Benign prostatic hyperplasia (BPH), Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS).

The evidence for this formula's ingredients is mixed. Lycopene is possibly effective for prostate cancer but possibly ineffective for bladder cancer and diabetes.

Zinc is effective for zinc deficiency and likely effective for Wilson disease. Pumpkin seed oil is possibly effective for benign prostatic hyperplasia (BPH, enlarged prostate).

Selenium is likely effective for selenium deficiency and possibly effective for autoimmune thyroiditis. Saw palmetto is possibly effective for certain prostate procedures (TURP) but possibly ineffective for benign prostatic hyperplasia.

Maca's effectiveness has not been reliably established in the data we hold — the evidence for its various purported uses is insufficient to rate. If prostate health is your main concern, talk with your doctor about what the evidence actually supports for your situation.

The evidence, ingredient by ingredient Lycopene Zinc Pumpkin Selenium Saw Palmetto Maca

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 6 of the 6 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 6 of 6.
  • General safety write-ups exist for 6 of 6.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lycopene supplements are generally well tolerated, though gastrointestinal side effects like diarrhea, nausea, and stomach discomfort can occur. Zinc is well tolerated in recommended doses but high doses can cause nausea, vomiting, and diarrhea; concern exists about copper deficiency with prolonged high-dose use.

Pumpkin seed oil supplements are generally safe, though abdominal discomfort, diarrhea, and nausea have been reported. Selenium is well tolerated at recommended levels but excess can cause nail changes, hair loss, nausea, and in rare cases serious organ effects.

Saw palmetto is generally well tolerated with mild side effects, though occasional cardiac effects (like arrhythmia or heart block) have been rarely reported. For pregnancy: lycopene and zinc supplements lack sufficient study in pregnancy, pumpkin seed oil concentrated supplements are not well studied in pregnancy, selenium's safety in pregnancy is uncertain, saw palmetto is considered likely unsafe in pregnancy, and maca lacks safety data in pregnancy — talk with your doctor before using if you are pregnant or breastfeeding.

Side effects, ingredient by ingredient Lycopene Zinc Pumpkin Selenium Saw Palmetto Maca

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?
  • 5 of the 6 matched ingredients can interact with medications — Lycopene, Pumpkin, Saw Palmetto, Zinc, Selenium.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; lithium.
  • For scale: 409 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 use: blood thinners or antiplatelet drugs like warfarin or aspirin (lycopene, selenium, and saw palmetto may increase bleeding risk); antibiotics including quinolones, tetracyclines, or cephalexin (zinc reduces their absorption); antiretroviral drugs like ritonavir or integrase inhibitors (zinc may lower their levels); lithium (pumpkin seed oil may raise its levels); estrogens or contraceptive drugs (saw palmetto may reduce their effectiveness); immunosuppressants or barbiturates (selenium may interfere); or warfarin (selenium theoretically may interfere). Separate zinc from antibiotics by at least 2–6 hours.

Check your own medication Run your meds through the checker above

The bottom line

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

This product may appeal to men interested in prostate wellness, but the evidence for most ingredients is mixed or insufficient. If you take blood thinners, antibiotics, antiretrovirals, lithium, warfarin, immunosuppressants, estrogens, or contraceptive drugs, you need to check with your doctor or pharmacist before starting — several ingredients interact with these medications and may reduce their effectiveness or increase bleeding risk.

Discuss with your own healthcare provider whether this formula is right for you and your medical situation.

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

Assessment coverage: 6 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 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 Prostate Formula, straight from the product label.

Brand Nature's Lab
Barcode (UPC) 818014014421
Net contents 180 Easy-to-swallow-Vegetarian Capsules(s)
Market status On market
Date entered into DSLD Jul 24, 2019
DSLD ID 205358
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult Male (18-50 Years), Gluten Free, Dairy Free, Sugar 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 Prostate Formula by Nature's Lab, 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 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
90
UPC/BARCODE
818014014421
IngredientAmount% DV
Lycopene12 mg--
Zinc15 mg100%
Pumpkin seed Oil powder100 mg--
Selenium70 mcg100%
Saw Palmetto extract320 mg--
organic Maca gelatinized powder100 mg--

Other ingredients: Hydroxypropyl Methylcellulose, Rice Hull Concentrate, Magnesium Stearate

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.
Formula

Prostate formula is a powerful blend of essential nutrients specifically formulated to work together to support prostate and bladder health.

Lycopene, saw palmetto and pumpkin seed oil work together for healthy prostate and bladder function and maintenance. Zinc and selenium provide immune system support and essential antioxidants.

Supports prostate & bladder health

FDA Disclaimer Statement

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

Precautions

Warnings: Pregnant or lactating women and people with known medical conditions and/or taking drugs should consult with a qualified healthcare practitioner prior to taking dietary supplements.

Do not use if seal is broken.

Keep out of reach of children.

Manufactured in a facility that also processes soy, milk, fish and shellfish.

Formulation

Vegetarian capsules

Free of: Sugar, salt, dairy, eggs, peanuts, tree nuts, fish, shellfish, yeast, wheat, soy, gluten, titanium dioxide, artificial colors and flavors.

Non GMO, gluten free

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take 2 capsules daily with meal or as directed by a qualified healthcare practitioner.

Storage

Store in a cool, dry place.

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

See for yourself

Prostate Formula by Nature's Lab label

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

Prostate Formula 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 Prostate Formula by Nature's Lab

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container90 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.

Lycopene

Interacts with
122 drugs
12 mg per serving

Lycopene is a red plant pigment and antioxidant found mainly in tomatoes and other red fruits. Eating lycopene-rich foods is linked with possible hear...

Lycopene monograph & interactions

Zinc

Interacts with
67 drugs
15 mg per serving Form: Zinc L-Methionine

Zinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but suppleme...

Zinc monograph & interactions

Pumpkin seed Oil powder

Interacts with
1 drug
100 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 seed Oil powder monograph & interactions

Selenium

Interacts with
321 drugs
70 mcg per serving Form: Selenium Yeast

Selenium is an essential trace mineral your body needs in small amounts for thyroid function, antioxidant defense, and immune health. Most people who...

Selenium monograph & interactions

Saw Palmetto 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 extract monograph & interactions

Organic Maca gelatinized powder

No known
interactions
100 mg per serving

Maca is a nutrient-rich Andean root often used for energy, libido, and menopause symptoms. Early studies suggest it may modestly help sexual desire an...

Organic Maca gelatinized powder monograph & interactions

Other (inactive) ingredients: Hydroxypropyl Methylcellulose, Rice Hull Concentrate, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Prostate Formula by Nature's Lab Drug Interactions

Want to check YOUR meds against Prostate Formula?

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
409Drugs
402 Moderate 7 Minor

Ingredients driving the most interactions

Selenium 321
Saw Palmetto extract 174
Lycopene 122
Zinc 67
Pumpkin seed Oil powder 1

Individual Drug Interactions

The ingredients in Prostate Formula interact with 409 drugs. Click any drug to see the details.

5 of the 6 ingredients in Prostate Formula interact with drugs. Each result below shows which ingredient is responsible. Selenium Saw Palmetto extract Lycopene Zinc Pumpkin seed Oil powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Prostate Formula 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.

Selenium6 drug types · 321 drugs

Anticoagulant/Antiplatelet Drugs

Selenium may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Clinical research suggests that taking selenium 10 mcg/kg/day can increase bleeding times by increasing prostacyclin production, which inhibits platelet activity. Other clinical research suggests that taking selenium 75 mcg daily, in combination with ascorbic acid 600 mg, alpha-tocopherol 300 mg, and beta-carotene 27 mg, reduces platelet aggregation.

Likelihood Possible Evidence D
Barbiturates

Theoretically, selenium might prolong the sedating effects of barbiturates.
Laboratory research suggests that selenium can inhibit the hepatic metabolism of barbiturates. Selenium seems to prolong the sedative effect of pentobarbital in animal models.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, selenium supplementation may reduce the effectiveness of immunosuppressant therapy.
In vitro research and preliminary clinical evidence suggests that selenium may stimulate the immune system.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, selenium might interfere with warfarin activity.
Animal research suggests that selenium can increase warfarin activity. Selenium might interact with warfarin by displacing it from albumin binding sites, reducing its metabolism in the liver, or by decreasing production of vitamin K-dependent clotting factors. Selenium can also prolong bleeding times in humans by increasing prostacyclin production, which inhibits platelet activity.

Likelihood Possible Evidence D
Contraceptive Drugs

Contraceptive drugs might increase levels of selenium, although the clinical significance of this effect is unclear.
Some research suggests that oral contraceptives increase serum selenium levels in women taking oral contraceptives; however, other research shows no change in selenium levels. It is suggested that an increase could be due to increased carrier proteins, indicating a redistribution of selenium rather than a change in total body selenium.

Likelihood Possible Evidence B
Niacin

Selenium might reduce the beneficial effects of niacin on high-density lipoprotein (HDL) levels.
A combination of niacin and simvastatin (Zocor) effectively raises HDL cholesterol levels in patients 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% in patients with coronary disease. It is not known whether this adverse effect is due to a single antioxidant such as selenium, or to the combination. It also is not known whether it will occur in other patient populations.

Likelihood Possible Evidence A
Selenium full monograph & interactions

Saw Palmetto 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 extract full monograph & interactions

Lycopene1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking lycopene with anticoagulant or antiplatelet drugs might increase the risk of bleeding.
In vitro research shows that lycopene has antiplatelet effects.

Likelihood Possible Evidence D
Lycopene full monograph & interactions

Zinc10 drug types · 67 drugs

Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)

Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide should be taken at least 2 hours before or 6 hours after zinc containing products.

Likelihood Probable Evidence D
Cephalexin (Keflex)

Zinc might decrease cephalexin levels by chelating with cephalexin in the gut and preventing its absorption.
A pharmacokinetic study shows that zinc sulfate 250 mg taken concomitantly with cephalexin 500 mg decreases peak levels of cephalexin by 31% and reduces the exposure to cephalexin by 27%. Also, taking zinc sulfate 3 hours before cephalexin decreases peak levels of cephalexin by 11% and reduces the exposure to cephalexin by 18%. By decreasing cephalexin levels, zinc might increase the risk of treatment failure. This effect does not occur when zinc is taken 3 hours after the cephalexin dose. To avoid an interaction, advise patients take zinc sulfate 3 hours after taking cephalexin.

Likelihood Probable Evidence B
Cisplatin (Platinol-Aq)

Theoretically, zinc might interfere with the therapeutic effects of cisplatin.
Animal research suggests that zinc stimulates tumor cell production of the protein metallothionein, which binds and inactivates cisplatin. It is not known whether zinc supplements or high dietary zinc intake can cause clinically significant interference with cisplatin therapy. Cisplatin might also increase zinc excretion.

Likelihood Possible Evidence D
Integrase Inhibitors

Theoretically, taking zinc along with integrase inhibitors might decrease the levels and clinical effects of these drugs.
Zinc is a divalent cation. Pharmacokinetic studies have shown that other divalent cations such as calcium and iron can decrease blood levels of the integrase inhibitor dolutegravir through chelation.

Likelihood Possible Evidence D
Penicillamine (Cuprimine, Depen)

Zinc might reduce the levels and clinical effects of penicillamine.
By forming an insoluble complex with penicillamine, zinc interferes with penicillamine absorption and activity. Zinc supplements reduce the efficacy of low-dose penicillamine (0.5-1 gram/day), but do not seem to affect higher doses (1-2.75 gram/day), provided dosing times are separated. Advise patients to take zinc and penicillamine at least 2 hours apart.

Likelihood Probable Evidence B
Quinolone Antibiotics

Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Quinolones form complexes with zinc in the gastrointestinal tract, reducing absorption of both the quinolone and zinc if taken at the same time. Advise patients to take these drugs at least 2 hours before, or 4-6 hours after, zinc supplements.

Likelihood Probable Evidence B
Ritonavir (Norvir)

Zinc modestly reduces levels of ritonavir.
Clinical research shows that zinc might reduce serum ritonavir levels by chelating with ritonavir in the gut and preventing its absorption. In patients with HIV, ritonavir is taken with atazanavir to prevent the metabolism and increase the effects of atazanavir. A pharmacokinetic study shows that, in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate (Solvazinc tablets) 125 mg as a single dose or as multiple daily doses for 2 weeks reduces plasma levels of ritonavir by about 16%. However, atazanavir levels still remains high enough to prevent HIV virus replication. Therefore, the decrease in ritonavir levels is not likely to be clinically significant.

Likelihood Probable Evidence B
Tetracycline Antibiotics

Zinc might reduce levels of tetracycline antibiotics.
Tetracyclines form complexes with zinc in the gastrointestinal tract, which can reduce absorption of both the tetracycline and zinc when taken at the same time. Taking zinc sulfate 200 mg with tetracycline reduces absorption of the antibiotic by 30% to 40%. Demeclocycline and minocycline cause a similar interaction. However, doxycycline does not seem to interact significantly with zinc. Advise patients to take tetracyclines at least 2 hours before, or 4-6 hours after, zinc supplements to avoid any interactions.

Likelihood Probable Evidence B
Amiloride (Midamor)

Amiloride can modestly reduce zinc excretion and increase zinc levels.
Clinical research shows that amiloride can reduce urinary zinc excretion, especially at doses of 10 mg per day or more. This zinc-sparing effect can help to counteract zinc losses caused by thiazide diuretics, but it is unlikely to cause zinc toxicity at usual amiloride doses. The other potassium-sparing diuretics, spironolactone (Aldactone) and triamterene (Dyrenium), do not seem to have a zinc-sparing effect.

Likelihood Probable Evidence B
Atazanavir (Reyataz)

Zinc modestly reduces levels of atazanavir, although this effect does not seem to be clinically significant.
Clinical research shows that zinc might decrease serum atazanavir levels by chelating with atazanavir in the gut and preventing its absorption. Although a single dose of zinc sulfate (Solvazinc tablets) 125 mg orally does not affect atazanavir concentrations in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate 125 mg daily for 2 weeks reduces plasma levels of atazanavir by about 22% in these patients. However, despite this decrease, atazanavir levels still remain at high enough concentrations for the prevention of HIV virus replication.

Likelihood Probable Evidence B
Zinc full monograph & interactions

Pumpkin seed Oil powder1 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 seed Oil powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Prostate Formula, from the product label.

Nature's Lab

See all Nature's Lab products
Name
Nature's Lab
Street Address
6980 W. Warm Springs Road, Suite 100
City
Las Vegas
State
NV
ZipCode
89113
Phone Number
1-888-793-0351
Web Address
Natureslab.com
Pharmacist Counseling Corner

Prostate Formula by Nature's Lab: Common Questions

Does Prostate Formula by Nature's Lab interact with any medications?
Yes. Based on its ingredients, Prostate Formula has a known interaction with 409 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Prostate Formula contains 6 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.
What is this product supposed to do?
Nature's Lab Prostate Formula combines ingredients traditionally used for prostate and urinary tract support. Lycopene, pumpkin seed oil, and saw palmetto are the main ingredients with some evidence backing their use, though the overall proof is mixed. Talk with your doctor about whether it fits your health goals.
Can I take this if I'm on blood thinners?
No, not without checking first. Lycopene, selenium, and saw palmetto in this formula may increase bleeding risk when combined with blood thinners (anticoagulants) or antiplatelet drugs like warfarin or aspirin. Talk with your doctor or pharmacist before adding this product.
Will this interact with my antibiotics?
Possibly. Zinc in this formula can reduce absorption of several antibiotics, including quinolones, tetracyclines, and cephalexin (Keflex). If you take one of these, separate the antibiotic from this product by at least 2–6 hours, and discuss the timing with your pharmacist or doctor first.
What side effects might I experience?
The most common side effects are gastrointestinal: stomach discomfort, diarrhea, nausea, and vomiting — mainly from the lycopene, zinc, pumpkin seed oil, and selenium. These are usually mild. Rare cardiac effects have been reported with saw palmetto. Stop and call your doctor if you experience severe symptoms.
Is this safe during pregnancy?
No. Saw palmetto is considered likely unsafe in pregnancy, and the other ingredients (lycopene, zinc, pumpkin seed oil, selenium, and maca) either lack sufficient safety data or are not recommended at supplement doses during pregnancy. Avoid this product if you are pregnant, and talk with your doctor before taking it while breastfeeding.
Why does this product interact with so many medications?
Zinc, the main culprit, is a mineral that binds to certain antibiotics and antiretroviral drugs in your gut, reducing how much of those drugs your body absorbs. Lycopene, selenium, and saw palmetto all have blood-thinning properties, so they can compound the effect of blood thinners. Always check your specific medications before starting any supplement.

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.

Prostate Formula label
Go deeper

The Full Monographs Behind Prostate Formula’s Ingredients

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

Herb & supplement monograph

Lycopene

Interacts with 122 drugs

Lycopene is a red plant pigment and antioxidant found mainly in tomatoes and other red fruits. Eating lycopene-rich foods is linked with possible heart and prostate benefits, but evidence fr...

Read the full Lycopene monograph → Herb & supplement monograph

Zinc

Interacts with 67 drugs

Zinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but supplements can help correct or prevent a defici...

Read the full Zinc 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

Selenium

Interacts with 321 drugs

Selenium is an essential trace mineral your body needs in small amounts for thyroid function, antioxidant defense, and immune health. Most people who eat a varied diet get enough, and supple...

Read the full Selenium 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

Maca

Maca is a nutrient-rich Andean root often used for energy, libido, and menopause symptoms. Early studies suggest it may modestly help sexual desire and some menopause symptoms, but the evide...

Read the full Maca monograph →
Sources

Sources & How We Checked

Prostate Formula'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 162 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.

Lycopene 10 references
  1. Sharma, J. B., Kumar, A., Kumar, A., Malhotra, M., Arora, R., Prasad, S., and Batra, S. Effect of lycopene on pre-eclampsia and intra-uterine growth retardation in primigravidas. Int J Gynaecol.Obstet. 2003;81(3):257-262. PubMed
  2. Hsiao, G., Wang, Y., Tzu, N. H., Fong, T. H., Shen, M. Y., Lin, K. H., Chou, D. S., and Sheu, J. R. Inhibitory effects of lycopene on in vitro platelet activation and in vivo prevention of thrombus formation. J Lab Clin Med 2005;146(4):216-226. PubMed
  3. Clark, P. E., Hall, M. C., Borden, L. S., Jr., Miller, A. A., Hu, J. J., Lee, W. R., Stindt, D., D'Agostino, R., Jr., Lovato, J., Harmon, M., and Torti, F. M. Phase I-II prospective dose-escalating trial of lycopene in patients with biochemical relapse o
  4. O'Kennedy, N., Crosbie, L., Whelan, S., Luther, V., Horgan, G., Broom, J. I., Webb, D. J., and Duttaroy, A. K. Effects of tomato extract on platelet function: a double-blinded crossover study in healthy humans. Am.J.Clin.Nutr. 2006;84(3):561-569. PubMed
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Pumpkin 5 references
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Selenium 36 references
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Saw Palmetto 22 references
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  5. Cheema P, El-Mefty O, Jazieh AR. Intraoperative haemorrhage associated with the use of extract of Saw Palmetto herb: a case report and review of literature. J Intern Med 2001;250:167-9. PubMed
  6. Jibrin I, Erinle A, Saidi A, Aliyu ZY. Saw palmetto-induced pancreatitis. South Med J 2006;99:611-2. PubMed
  7. Prager N, Bickett K, French N, Marcovici G. A randomized, double-blind, placebo-controlled trial to determine the effectiveness of botanically derived inhibitors of 5-alpha-reductase in the treatment of androgenetic alopecia. J Altern Complement Med 2002
  8. Avins AL, Bent S, Staccone S, et al. A detailed safety assessment of a saw palmetto extract. Complement Ther Med 2008;16:147-54. PubMed
  9. Morgia, G., Mucciardi, G., Gali, A., Madonia, M., Marchese, F., Di, Benedetto A., Romano, G., Bonvissuto, G., Castelli, T., Macchione, L., and Magno, C. Treatment of chronic prostatitis/chronic pelvic pain syndrome category IIIA with Serenoa repens plus
  10. Aliaev, IuG, Vinarov, A. Z., Lokshin, K. L., and Spivak, L. G. [Efficiency and safety of prostamol-Uno in patients with chronic abacterial prostatitis]. Urologiia. 2006;(1):47-50.
  11. Agbabiaka, T. B., Pittler, M. H., Wider, B., and Ernst, E. Serenoa repens (saw palmetto): a systematic review of adverse events. Drug Saf 2009;32(8):637-647. PubMed
  12. Wargo, K. A., Allman, E., and Ibrahim, F. A possible case of saw palmetto-induced pancreatitis. South.Med.J. 2010;103(7):683-685. PubMed
  13. Lapi, F., Gallo, E., Giocaliere, E., Vietri, M., Baronti, R., Pieraccini, G., Tafi, A., Menniti-Ippolito, F., Mugelli, A., Firenzuoli, F., and Vannacci, A. Acute liver damage due to Serenoa repens: a case report. Br.J.Clin.Pharmacol. 2010;69(5):558-560.
  14. Mantovani, F. Serenoa repens in benign prostatic hypertrophy: analysis of 2 Italian studies. Minerva Urol.Nefrol. 2010;62(4):335-340.
  15. Hanaka, M., Yoshii, C., Yatera, K., Ito, C., Chojin, Y., Nagata, S., Yamasaki, K., Nishida, C., Kawanami, T., Kawanami, Y., Ishimoto, H., and Mukae, H. [A case of rhabdomyolysis caused by saw palmetto of healthy foods]. J.UOEH. 6-1-2012;34(2):193-199. PubMed
  16. Miroddi, M., Carni, A., Mannucci, C., Moleti, M., Navarra, M., and Calapai, G. Hot flashes in a young girl: a wake-up call concerning Serenoa repens use in children. Pediatrics 2012;130(5):e1374-e1376.
  17. Braeckman J. The extract of Serenoa repens in the treatment of benign prostatic hyperplasia: a multicenter open study. Current Therapeutic Research 1994;55(7):776-785. DOI
  18. Jipescu D, Patel A, Bohra H, Pientka A. Rare case of saw palmetto induced heart block. JACC 2017;69(11) supplement:2310.
  19. Morabito P, Miroddi M, Giovinazzo S, Spina E, Calapai G. Serenoa repens as an endocrine disruptor in a 10-year-Old young girl: a new case report. Pharmacology. 2015;96(1-2):41-3. doi: 10.1159/000431327.
  20. Gammoudi R, Ameur K, Ouni B, et al. Fixed drug eruption to Serenoa repens: first case report and consideration of the use of herbal medicine. Dermatol Ther 2020 Aug 29:e14247.
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  22. Venkateswaran S, Declet-Bauzo R, Shodeinde M, Gilford P. Postoperative Retroperitoneal Hematoma: A Case of Saw Palmetto and the Importance of Primary Care Intervention. HCA Healthc J Med 2020;1(5):279-282. PubMed

See these in context on the Saw Palmetto monograph →

Maca 1 reference
  1. Valerio, L. G., Jr. and Gonzales, G. F. Toxicological aspects of the South American herbs cat's claw (Uncaria tomentosa) and Maca (Lepidium meyenii) : a critical synopsis. Toxicol.Rev 2005;24(1):11-35. PubMed

See these in context on the Maca 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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