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

Circulatory Health Ingredients & Drug Interactions

by GNC Mega Men

Circulatory Health label
See full label image
Capsule Category: Non-nutrient/non-botanical
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 Circulatory Health 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

Circulatory Health is a dietary supplement by GNC Mega Men with 1 active ingredient. Its ingredients are commonly taken for heart and blood vessel health, antioxidant support, anti-aging.Based on those ingredients, 822 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Trans-Resveratrol. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Circulatory Health by GNC Mega Men

Ask about any prescription or over-the-counter medication and we check it for interactions with Circulatory Health by GNC Mega Men — 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 Circulatory Health by GNC Mega Men

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 Jul 11, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

GNC Mega Men Circulatory Health contains one active ingredient: trans-resveratrol, a compound found in grapes and other plants that's included for cardiovascular support. The product also contains inactive ingredients — microcrystalline cellulose, gelatin, stearic acid, hydroxypropyl cellulose, and several colorants (FD&C Blue #1, FD&C Red #3 and #40) — which are fillers, binders, and capsule materials with no therapeutic role.

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 — see Resveratrol's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Circulatory health and heart support.
  • We looked for evidence on: Cardiovascular disease (CVD), Hypertension, Hypercholesterolemia, Blood vessel function, Endothelial health, Vascular circulation.
  • The closest evidence on file: Resveratrol is rated "Possibly Ineffective" for Cardiovascular disease (CVD) (Natural Medicines).
  • Also on file: Resveratrol is rated "Possibly Ineffective" for Hypercholesterolemia.
  • Also on file: Resveratrol is rated "Insufficient Reliable Evidence To Rate" for Hypertension.

For what it's marketed for, the evidence is mixed. Resveratrol shows possibly effective evidence for obesity and allergic rhinitis (hay fever), so it may help with those conditions.

However, it's rated possibly ineffective for cardiovascular disease and high cholesterol — the very reasons someone might pick up a product labeled 'Circulatory Health.' That's worth knowing before you buy.

The evidence, ingredient by ingredient Resveratrol

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

In typical doses found in foods, resveratrol is generally well tolerated. At higher supplement doses, some people report diarrhea, gastrointestinal discomfort, and loose stools.

A few cases of headache, fatigue, and skin rash have been reported, though it's unclear whether resveratrol was directly responsible. For pregnancy, there isn't enough safety information; concentrated supplements should be avoided.

The same goes for breastfeeding — avoid supplement use until more data exists.

Side effects, ingredient by ingredient Resveratrol

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?
  • 1 of the 1 matched ingredient can interact with medications — Resveratrol.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 823 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.

Check before taking this if you're on blood thinners or antiplatelet drugs (warfarin, aspirin, clopidogrel) — resveratrol may increase bleeding risk. Also flag any medications metabolized by CYP2C19, CYP1A2, CYP2E1, or CYP3A4 enzymes, since resveratrol may raise their levels; while high-dose human data is reassuring for CYP3A4, other pathways haven't been tested the same way.

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.

Resveratrol is generally well tolerated in typical doses, but this product's effectiveness for circulatory health isn't well established. If you take blood thinners, aspirin, or medications processed through your liver, talk to your pharmacist or doctor before starting — the interaction risks are real, even if human data is still catching up.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated May 23, 2024.

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 Circulatory Health, straight from the product label.

Brand GNC Mega Men
Net contents 30 Red Capsule(s)
Market status On market
Date entered into DSLD May 23, 2024
DSLD ID 315092
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult Male (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 Circulatory Health by GNC Mega Men, 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:
1 Red Capsule(s)
Maximum serving Sizes:
1 Red Capsule(s)
Servings per container
30
IngredientAmount% DV
Trans-Resveratrol30 mg--

Other ingredients: Microcrystalline Cellulose, Gelatin, Stearic Acid, Hydroxypropyl Cellulose, FD&C Blue #1, FD&C Red #3, FD&C Red #40, Silicon Dioxide, 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.
Precautions

Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. Discontinue use two weeks prior to surgery. Inform your physician of this product's biotin content before any lab test. Niacin may cause a temporary flushing reaction.

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

Keep out of reach of children.

Formulation

No Artificial Flavors.

Science-Backed Support: Circulation & Blood Flow

Storage

Store in a cool, dry place.

General Statements

For More Information: 1-888-462-2548 GNC.com Our Quality Commitment to You Since 1935, our mission as the industry leader has been to provide you with the highest-quality nutritional supplements. We continue to stand behind this mission. If you're not 100% satisfied with your purchase, return the unused portion of the product with your receipt within 30 days and we'll either refund your money or find a replacement product that is right for you.

30 Packs/30-Day Supply

Formula

resVida

Targeted for the specific health needs of men who understand that their prime lasts as long as they want.

Circulatory Support supports a healthy circulatory system with clinically studied resVida.

Brand IP Statement(s)

Trans-Resveratrol as resVida. resVida is a trademark of DSM.

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

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take the contents of one pack daily with food.

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

See for yourself

Circulatory Health by GNC Mega Men label

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

Circulatory Health 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 Circulatory Health by GNC Mega Men

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Red Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Trans-Resveratrol

Interacts with
822 drugs
30 mg per serving

Resveratrol is a plant compound found in red grapes, berries, and peanuts that is popular for heart health, anti-aging, and antioxidant support. While...

Trans-Resveratrol monograph & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Gelatin, Stearic Acid, Hydroxypropyl Cellulose, FD&C Blue #1, FD&C Red #3, FD&C Red #40, Silicon Dioxide, Titanium Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Circulatory Health by GNC Mega Men Drug Interactions

Want to check YOUR meds against Circulatory Health?

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
822Drugs
822 Moderate

Ingredients driving the most interactions

Trans-Resveratrol 822

Individual Drug Interactions

The ingredients in Circulatory Health interact with 822 drugs. Click any drug to see the details.

1 of the 1 ingredient in Circulatory Health interact with drugs. Each result below shows which ingredient is responsible. Trans-Resveratrol

Each ingredient & the kinds of drugs it affects

For each ingredient in Circulatory Health with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Trans-Resveratrol5 drug types · 822 drugs

Anticoagulant/Antiplatelet Drugs

Resveratrol may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Resveratrol seems to have antiplatelet effects.

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

Theoretically, resveratrol might increase levels of drugs metabolized by CYP1A2.
In vitro research shows that resveratrol can inhibit CYP1A2 enzymes. However, this interaction has not been reported in humans.

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

Theoretically, resveratrol might increase levels of drugs metabolized by CYP2C19.
In vitro research shows that resveratrol can inhibit CYP2C19 enzymes. However, this interaction has not been reported in humans.

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

Resveratrol might increase levels of drugs metabolized by CYP2E1.
In vitro research suggests that resveratrol inhibits CYP2E1 isoenzyme. Also, a pharmacokinetic study shows that taking resveratrol 500 mg daily for 10 days prior to taking a single dose of chlorzoxazone 250 mg increases the maximum concentration of chlorzoxazone by about 54%, the area under the curve of chlorzoxazone by about 72%, and the half-life of chlorzoxazone by about 35%. Chlorzoxazone is used as a probe drug for CYP2E1.

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

Theoretically, resveratrol might increase levels of drugs metabolized by CYP3A4.
In vitro research shows that resveratrol can inhibit the CYP3A4 enzyme. However, clinical research shows that taking resveratrol 3000 mg daily for 8 weeks does not necessitate dose adjustments to medications metabolized by CYP3A4.

Likelihood Possible Evidence D
Trans-Resveratrol full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Circulatory Health, from the product label.

GNC Mega Men

See all GNC Mega Men products
Name
GNC Holdings, LLC
City
Pittsburgh
State
PA
ZipCode
15222
Phone Number
1-888-462-2548
Web Address
GNC.com
Pharmacist Counseling Corner

Circulatory Health by GNC Mega Men: Common Questions

Does Circulatory Health by GNC Mega Men interact with any medications?
Yes. Based on its ingredients, Circulatory Health has a known interaction with 822 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Circulatory Health contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is resveratrol safe in pregnancy?
There isn't enough safety information for concentrated resveratrol supplements during pregnancy. Talk with your doctor or pharmacist before taking this product if you're pregnant or planning to become pregnant.
Can I take this while breastfeeding?
There isn't enough safety data to know if resveratrol supplements are safe while breastfeeding. Avoid supplement use and check with your pharmacist or doctor for guidance on alternatives.
What side effects might I notice?
At higher doses, diarrhea, gastrointestinal discomfort, and loose stools are most common. A few people have reported headache, fatigue, or a skin rash, though whether resveratrol caused those isn't always clear.
Will this really help my cholesterol or heart health?
The evidence for resveratrol is mixed on those fronts — it's rated possibly ineffective for cardiovascular disease and high cholesterol. It does show some promise for obesity and hay fever, but that's not what this product is labeled for.
What is trans-resveratrol exactly?
Resveratrol is a compound found naturally in grapes, berries, and red wine. Your body uses it as an antioxidant, and it's been studied for effects on heart health and weight, though human evidence is still evolving.

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

Not sure if Circulatory Health 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.

Circulatory Health label
Go deeper

The Full Monographs Behind Circulatory Health’s Ingredients

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

Herb & supplement monograph

Resveratrol

Interacts with 822 drugs

Resveratrol is a plant compound found in red grapes, berries, and peanuts that is popular for heart health, anti-aging, and antioxidant support. While lab and animal studies are promising, s...

Read the full Resveratrol monograph →
Sources

Sources & How We Checked

Circulatory Health'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 24 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.

Resveratrol 24 references
  1. Soleas GJ, Diamandis EP, Goldberg DM. Resveratrol: a molecule whose time has come? And gone? Clin Biochem 1997;30:91-113.
  2. Pace-Asciak CR, Rounova O, Hahn SE, et al. Wines and grape juices as modulators of platelet aggregation in healthy human subjects. Clin Chim Acta 1996;246:163-82. PubMed
  3. Bertelli AA, Giovannini L, Bernini W, et al. Antiplatelet activity of cis-resveratrol. Drugs Exp Clin Res 1996;22:61-3.
  4. Pace-Asciak CR, Hahn S, Diamandis EP, et al. The red wine phenolics trans-resveratrol and quercetin block human platelet aggregation and eicosanoid synthesis: implications for protection against coronary heart disease. Clin Chim Acta 1995;235:207-19.
  5. Bertelli A, Bertelli AA, Gozzini A, Giovannini L. Plasma and tissue resveratrol concentrations and pharmacological activity. Drugs Exp Clin Res 1998;24:133-8.
  6. Bertelli AA, Giovannini L, Giannessi D, et al. Antiplatelet activity of synthetic and natural resveratrol in red wine. Int J Tissue React 1995;17:1-3.
  7. Piver B, Berthou F, Dreano Y, Lucas D. Inhibition of CYP3A, CYP1A and CYP2E1 activities by resveratrol and other non volatile red wine components. Toxicol Lett 2001;125:83-91. PubMed
  8. Chang, T. K., Chen, J., and Lee, W. B. Differential inhibition and inactivation of human CYP1 enzymes by trans-resveratrol: evidence for mechanism-based inactivation of CYP1A2. J.Pharmacol.Exp.Ther. 2001;299(3):874-882.
  9. Dobrydneva, Y., Williams, R. L., and Blackmore, P. F. trans-Resveratrol inhibits calcium influx in thrombin-stimulated human platelets. Br.J.Pharmacol. 1999;128(1):149-157.
  10. Kirk, R. I., Deitch, J. A., Wu, J. M., and Lerea, K. M. Resveratrol decreases early signaling events in washed platelets but has little effect on platalet in whole food. Blood Cells Mol.Dis. 2000;26(2):144-150.
  11. Zbikowska, H. M. and Olas, B. Antioxidants with carcinostatic activity (resveratrol, vitamin E and selenium) in modulation of blood platelet adhesion. J Physiol Pharmacol. 2000;51(3):513-520.
  12. Olas, B., Wachowicz, B., Saluk-Juszczak, J., and Zielinski, T. Effect of resveratrol, a natural polyphenolic compound, on platelet activation induced by endotoxin or thrombin. Thromb.Res 8-15-2002;107(3-4):141-145. PubMed
  13. Yu, C., Shin, Y. G., Kosmeder, J. W., Pezzuto, J. M., and van Breemen, R. B. Liquid chromatography/tandem mass spectrometric determination of inhibition of human cytochrome P450 isozymes by resveratrol and resveratrol-3-sulfate. Rapid Commun.Mass Spectro PubMed
  14. Ma, Z. H. and Ma, Q. Y. Resveratrol: a medical drug for acute pancreatitis. World J Gastroenterol. 6-7-2005;11(21):3171-3174. PubMed
  15. la, Porte C., Voduc, N., Zhang, G., Seguin, I., Tardiff, D., Singhal, N., and Cameron, D. W. Steady-State pharmacokinetics and tolerability of trans-resveratrol 2000 mg twice daily with food, quercetin and alcohol (ethanol) in healthy human subjects. Cli PubMed
  16. Brown, V. A., Patel, K. R., Viskaduraki, M., Crowell, J. A., Perloff, M., Booth, T. D., Vasilinin, G., Sen, A., Schinas, A. M., Piccirilli, G., Brown, K., Steward, W. P., Gescher, A. J., and Brenner, D. E. Repeat dose study of the cancer chemopreventive
  17. Pendurthi, U. R., Williams, J. T., and Rao, L. V. Resveratrol, a polyphenolic compound found in wine, inhibits tissue factor expression in vascular cells : A possible mechanism for the cardiovascular benefits associated with moderate consumption of wine. PubMed
  18. Chachay VS, Macdonald GA, Martin JH, Whitehead JP, O'Moore-Sullivan TM, Lee P, Franklin M, Klein K, Taylor PJ, Ferguson M, Coombes JS, Thomas GP, Cowin GJ, Kirkpatrick CM, Prins JB, Hickman IJ. Resveratrol does not benefit patients with nonalcoholic fatty
  19. Bedada SK, Neerati P. Resveratrol Pretreatment Affects CYP2E1 Activity of Chlorzoxazone in Healthy Human Volunteers. Phytother Res. 2016;30(3):463-8. PubMed
  20. Lin CT, Sun XY, Lin AX. Supplementation with high-dose trans-resveratrol improves ultrafiltration in peritoneal dialysis patients: a prospective, randomized, double-blind study. Ren Fail. 2016;38(2):214-21. PubMed
  21. Li Q, Yang G, Xu H, Tang S, Lee WY. Effects of resveratrol supplementation on bone quality: a systematic review and meta-analysis of randomized controlled trials. BMC Complement Med Ther 2021;21(1):214. PubMed
  22. McCreary MR, Schnell PM, Rhoda DA. Randomized double-blind placebo-controlled proof-of-concept trial of resveratrol for outpatient treatment of mild coronavirus disease (COVID-19). Sci Rep 2022;12(1):10978. PubMed
  23. Abdelhaleem IA, Brakat AM, Adayel HM, Asla MM, Rizk MA, Aboalfetoh AY. The effects of resveratrol on glycemic control and cardiometabolic parameters in patients with T2DM: A systematic review and meta-analysis. Med Clin (Barc) 2022;158(12):576-585. PubMed
  24. Badaoui A. Allergic contact dermatitis to resveratrol and Scutellaria baicalensis root extract in a cosmetic product. Contact Dermatitis 2022.

See these in context on the Resveratrol 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