Pycnogenol 25 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Pycnogenol 25 mg 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
Pycnogenol 25 mg is a dietary supplement by Pure Health Naturally with 4 active ingredients. Its ingredients are commonly taken for skin hydration and aging, joint comfort and osteoarthritis, dry eyes.Based on those ingredients, 429 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Pycnogenol French Maritime Pine bark extract, Horsetail (Equisetum arvense) Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Pycnogenol 25 mg by Pure Health Naturally
Ask about any prescription or over-the-counter medication and we check it for interactions with Pycnogenol 25 mg by Pure Health Naturally — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Pycnogenol 25 mg by Pure Health Naturally
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 4 of its 4 active ingredients.
- No proprietary blends here — you can verify the dose of every single component.
The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.
Why this rating?
- 2 of the 3 matched ingredients can interact with medications — Horsetail, Maritime Pine.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications; lithium.
- For scale: 429 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.
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 3 of the 3 matched ingredients.
- Pregnancy & breastfeeding safety ratings cover 3 of 3.
- General safety write-ups exist for 3 of 3.
- Remember: this measures how much safety information exists. Thin data is not the same as being safe.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 3 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated May 23, 2014.
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
General information
Key facts about Pycnogenol 25 mg, straight from the product label.
| Brand | Pure Health Naturally |
|---|---|
| Barcode (UPC) | 812711013435 |
| Net contents | 30 Vegetarian Capsule(s) |
| Market status | Off market |
| Date entered into DSLD | May 23, 2014 |
| DSLD ID | 33400 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Pycnogenol 25 mg by Pure Health Naturally, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Rice Hull Concentrate | 170 mg | -- |
| Hyaluronic Acid | 60 mg | -- |
| Pycnogenol French Maritime Pine bark extract | 25 mg | -- |
| Horsetail (Equisetum arvense) Extract | 150 mg | -- |
Other ingredients: Vegetarian Capsule
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements
Pure Health's Pycnogenol(R): - Delivers Healthy Skin Support* - Promotes Healthy Appearance* - Supports Cardiovascular Health*
Skin Health & Youthfulness*
And Nothing Else!
Due to the natural and pure ingredients in this product, taste, color and consistency may vary.
Suggested/Recommended/Usage/Directions
Directions: Take 2 capsules one or more times per day with a 10 oz. glass of water or as recommended by your healthcare provider.
Precautions
Do not purchase if seal around cap is broken.
Keep out of reach of children.
Brand IP Statement(s)
Pycnogenol(R) is a registeredtrademark of HorphagResearch Ltd. Use of this product may be protected by one or more U.S. patents and other international patents.
Seals/Symbols
PYCNOGENOL(R) NATURE'S SUPER ANTIOXIDANT
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.
Formula
Pycnogenol 25 mg per serving!
FDA Statement of Identity
Dietary Supplement
General
LBPH080-A
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Pycnogenol 25 mg by Pure Health Naturally label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Pycnogenol 25 mg by Pure Health Naturally
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per container15 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.
Rice Hull Concentrate
Hyaluronic Acid
No knowninteractions
Hyaluronic acid is a natural substance in the body that helps hold water in the skin, joints, and eyes. Oral and topical products are popular for skin...
Hyaluronic Acid monograph & interactionsPycnogenol French Maritime Pine bark extract
Interacts with327 drugs
Maritime pine bark extract (often sold as Pycnogenol) is a plant-based antioxidant most studied for circulation, vein, and skin health. Some research...
Pycnogenol French Maritime Pine bark extract monograph & interactionsHorsetail (Equisetum arvense) Extract
Interacts with188 drugs
Horsetail is a traditional herb most often used as a mild diuretic and for hair, nail, and bone support, but high-quality human evidence is limited. I...
Horsetail (Equisetum arvense) Extract monograph & interactionsOther (inactive) ingredients: Vegetarian Capsule. These complete the product’s ingredient list but are not active constituents.
Pycnogenol 25 mg by Pure Health Naturally Drug Interactions
Pycnogenol 25 mg contains 4 ingredients, and 2 of them have known drug interactions. Altogether they interact with 429 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Pycnogenol 25 mg?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Pycnogenol 25 mg interact with 429 drugs. Click any drug to see the details.
2 of the 4 ingredients in Pycnogenol 25 mg interact with drugs. Each result below shows which ingredient is responsible. Pycnogenol French Maritime Pine bark extract Horsetail (Equisetum arvense) Extract
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + 6-mercaptopurine interactionAbacavir Sulfate, Dolutegravir, LamivudineTriumeq
How Abacavir Sulfate, Dolutegravir, Lamivudine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractNucleoside Reverse Transcriptase Inhibitors (nrtis) Moderate
Interaction Summary
Theoretically, horsetail might decrease the levels and clinical effects of NRTIs.
Read the full Horsetail (equisetum Arvense) Extract + Abacavir Sulfate, Dolutegravir, Lamivudine interactionAbacavir, LamivudineEpzicom
How Abacavir, Lamivudine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractNucleoside Reverse Transcriptase Inhibitors (nrtis) Moderate
Interaction Summary
Theoretically, horsetail might decrease the levels and clinical effects of NRTIs.
Read the full Horsetail (equisetum Arvense) Extract + Abacavir, Lamivudine interactionAbciximabReoPro
How Abciximab interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs, Immunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acarbose interactionHorsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with diuretic drugs might increase potassium loss and the risk of hypokalemia.
Read the full Horsetail (equisetum Arvense) Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acetaminophen, Ibuprofen interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with diuretic drugs might increase potassium loss and the risk of hypokalemia.
Read the full Horsetail (equisetum Arvense) Extract + Acetaminophen, Pamabrom, Pyrilamine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with diuretic drugs might increase potassium loss and the risk of hypokalemia.
Read the full Horsetail (equisetum Arvense) Extract + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Acetohexamide interactionPycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Acetylsalicylic Acid interactionAdalimumabHumira
How Adalimumab interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab interactionAdalimumab-adazHyrimoz
How Adalimumab-adaz interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-adaz interactionAdalimumab-adbmCyltezo
How Adalimumab-adbm interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-adbm interactionAdalimumab-afzbAbrilada
How Adalimumab-afzb interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-afzb interactionAdalimumab-attoAmjevita
How Adalimumab-atto interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-atto interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-bwwd interactionAdalimumab-fkjpHulio
How Adalimumab-fkjp interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Adalimumab-fkjp interactionAdefovirHepsera
How Adefovir interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractNucleoside Reverse Transcriptase Inhibitors (nrtis) Moderate
Interaction Summary
Theoretically, horsetail might decrease the levels and clinical effects of NRTIs.
Read the full Horsetail (equisetum Arvense) Extract + Adefovir interactionAlbiglutideTanzeum
How Albiglutide interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Albiglutide interactionPycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Albiglutide interactionAlefaceptAmevive
How Alefacept interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alefacept interactionAlemtuzumabCampath
How Alemtuzumab interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alemtuzumab interactionAlogliptinNesina
How Alogliptin interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alogliptin interactionHorsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Horsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Alogliptin, Metformin interactionPycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Pycnogenol 25 mg — through 2 ingredients. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alogliptin, Pioglitazone interactionHorsetail (equisetum Arvense) ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Horsetail (equisetum Arvense) Extract + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Pycnogenol 25 mg — through 1 ingredient. Tap an ingredient for the detail:
Pycnogenol French Maritime Pine Bark ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Read the full Pycnogenol French Maritime Pine Bark Extract + Alteplase, Tpa interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Pycnogenol 25 mg 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.
Pycnogenol French Maritime Pine bark extract
Anticoagulant/Antiplatelet Drugs
Theoretically, maritime pine bark extract might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
Clinical research suggests that maritime pine bark extract inhibits platelet aggregation. However, the clinical significance of this effect is unclear.
Antidiabetes Drugs
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
One clinical study shows that maritime pine bark extract decreases blood sugar in patients with diabetes being treated with antidiabetes agents. Monitor blood glucose levels closely. Dose adjustments might be necessary.
Immunosuppressants
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
In vitro and animal research suggests that maritime pine bark extract has immunostimulant activity. This effect has not been reported in humans.
Horsetail (Equisetum arvense) Extract
Antidiabetes Drugs
Theoretically, taking horsetail with antidiabetes drugs might increase the risk of hypoglycemia.
Equisetum myriochaetum has demonstrated hypoglycemic activity in clinical research. In an animal diabetic model, Equisetum giganteum had hypoglycemic effects. It is unclear whether other horsetail species have hypoglycemic effects.
Diuretic Drugs
Theoretically, taking horsetail with diuretic drugs might increase potassium loss and the risk of hypokalemia.
Laboratory research shows that various species of horsetail have diuretic properties. Due to its diuretic effects, there has been concern that taking horsetail along with potassium-depleting diuretics might increase the risk for hypokalemia. However, pharmacokinetic research in humans shows that taking horsetail 900 mg daily for 4 days does not affect urinary excretion of electrolytes, including potassium and sodium, despite having a diuretic effect similar to taking hydrochlorothiazide 25 mg daily. It is unclear if taking horsetail for a longer duration would affect electrolyte levels. Until more is known, use with caution.
Efavirenz (Sustiva)
Theoretically, horsetail might decrease the levels and clinical effects of efavirenz.
In two case reports, patients were found to have detectable viral loads when taking horsetail-containing supplements along with an antiretroviral regimen that included efavirenz. In one case, the antiretroviral regimen included zidovudine, lamivudine, and efavirenz; in the other case, the regimen consisted of emtricitabine, tenofovir disoproxil fumarate, and efavirenz. One month after discontinuing horsetail, the viral loads became undetectable in both cases. The exact mechanism of this interaction is unknown. It is also unclear if this interaction is specific to efavirenz or if it is related to various components of antiretroviral therapy.
Lithium
Theoretically, horsetail might increase the levels and adverse effects of lithium.
Animal research suggests that horsetail has diuretic properties. Theoretically, due to these potential diuretic effects, horsetail might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.
Nucleoside Reverse Transcriptase Inhibitors (Nrtis)
Theoretically, horsetail might decrease the levels and clinical effects of NRTIs.
In two case reports, patients were found to have detectable viral loads when taking horsetail-containing supplements along with an antiretroviral therapy. In one case, the antiretroviral regimen included zidovudine, lamivudine, and efavirenz; in the other case, the regimen consisted of emtricitabine, tenofovir disoproxil fumarate, and efavirenz. One month after discontinuing the supplement, the viral loads became undetectable in both cases. The exact mechanism of these interactions is unknown. It is also unclear if these interactions are specific to NRTIs or if they are related to various components of antiretroviral therapy.
Brand information
Manufacturer and brand details for Pycnogenol 25 mg, from the product label.
Pure Health Naturally
See all Pure Health Naturally products- Name
- Pure Health
- Street Address
- 3753 Howard Hughes Parkway Suite 200, #428
- City
- Las Vegas
- State
- NV
- ZipCode
- 89169
- Phone Number
- (888) 323-9355
Pycnogenol 25 mg by Pure Health Naturally: Common Questions
Does Pycnogenol 25 mg by Pure Health Naturally interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Pycnogenol 25 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Pycnogenol 25 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Hyaluronic Acid
Hyaluronic acid is a natural substance in the body that helps hold water in the skin, joints, and eyes. Oral and topical products are popular for skin moisture and joint comfort, and the evi...
Read the full Hyaluronic Acid monograph → Herb & supplement monographMaritime Pine
Interacts with 327 drugsMaritime pine bark extract (often sold as Pycnogenol) is a plant-based antioxidant most studied for circulation, vein, and skin health. Some research is promising, but many studies are small...
Read the full Maritime Pine monograph → Herb & supplement monographHorsetail
Interacts with 188 drugsHorsetail is a traditional herb most often used as a mild diuretic and for hair, nail, and bone support, but high-quality human evidence is limited. It can cause thiamine (vitamin B1) loss w...
Read the full Horsetail monograph →Sources & How We Checked
Pycnogenol 25 mg'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 32 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.
Hyaluronic Acid 4 references
- Park Y, Song JS, Choi CY, Yoon KC, Lee HK, Kim HS. A randomized multicenter study comparing 0.1%, 0.15%, and 0.3% sodium hyaluronate with 0.05% cyclosporine in the treatment of dry eye. J Ocul Pharmacol Ther. 2017;33(2):66-72. PubMed
- U.S. Food and Drug Administration. Do Not Use Needle-Free Devices for Injection of Dermal Fillers - FDA Safety Communication. October 8, 2021. Available at: https://www.fda.gov/medical-devices/safety-communications/do-not-use-needle-free-devices-injection
- Disphanurat W, Srisantithum B. Efficacy and safety of 0.15% isobutylamido thiazolyl resorcinol combined with hyaluronic acid vs 0.15% isobutylamido thiazolyl resorcinol or hyaluronic acid alone in melasma treatment: A randomized evaluator-blind trial. J C PubMed
- Humbert P, Mikosinki J, Benchikhi H, Allaert FA. Efficacy and safety of a gauze pad containing hyaluronic acid in treatment of leg ulcers of venous or mixed origin: a double-blind, randomised, controlled trial. Int Wound J 2013;10(2):159-66. PubMed
Maritime Pine 14 references
- Rice-Evans CA, Packer L, eds. Flavonoids in Health and Disease. Manhattan, NY: Marcel Dekker, Inc., 1998.
- Liu FJ, Zhang YX, Lau BH. Pycnogenol enhances immune and haemopoietic functions in senescence-accelerated mice. Cell Mol Life Sci 1998;54:1168-72. PubMed
- Putter M, Grotemeyer KH, Wurthwein G, et al. Inhibition of smoking-induced platelet aggregation by aspirin and pycnogenol. Thromb Res 1999;95:155-61. PubMed
- Kohama T, Inoue M. Pycnogenol alleviates pain associated with pregnancy. Phytother Res 2006;20:232-4.
- Liu X, Zhou HJ, Rohdewald P. French maritime pine bark extract pycnogenol dose-dependently lowers glucose in type 2 diabetic patients (letter). Diabetes Care 2004;27:839. PubMed
- Liu X, Wei J, Tan F, et al. Antidiabetic effect of Pycnogenol French maritime pine bark extract in patients with diabetes type II. Life Sci 2004;75:2505-13. PubMed
- Wilson D, Evans M, Guthrie N et al. A randomized, double-blind, placebo-controlled exploratory study to evaluate the potential of pycnogenol for improving allergic rhinitis symptoms. Phytother Res 2010;24:1115-9.
- Araghi-Niknam, M., Hosseini, S., Larson, D., Rohdewald, P., and Watson, R. R. Pine bark extract reduces platelet aggregation. Integr.Med. 3-21-2000;2(2):73-77. PubMed
- Trebaticka, J., Kopasova, S., Hradecna, Z., Cinovsky, K., Skodacek, I., Suba, J., Muchova, J., Zitnanova, I., Waczulikova, I., Rohdewald, P., and Durackova, Z. Treatment of ADHD with French maritime pine bark extract, Pycnogenol. Eur.Child Adolesc.Psychi PubMed
- Suzuki, N., Uebaba, K., Kohama, T., Moniwa, N., Kanayama, N., and Koike, K. French maritime pine bark extract significantly lowers the requirement for analgesic medication in dysmenorrhea: a multicenter, randomized, double-blind, placebo-controlled study
- Cisar, P., Jany, R., Waczulikova, I., Sumegova, K., Muchova, J., Vojtassak, J., Durackova, Z., Lisy, M., and Rohdewald, P. Effect of pine bark extract (Pycnogenol) on symptoms of knee osteoarthritis. Phytother.Res. 2008;22(8):1087-1092.
- Enseleit, F., Sudano, I., Periat, D., Winnik, S., Wolfrum, M., Flammer, A. J., Frohlich, G. M., Kaiser, P., Hirt, A., Haile, S. R., Krasniqi, N., Matter, C. M., Uhlenhut, K., Hogger, P., Neidhart, M., Luscher, T. F., Ruschitzka, F., and Noll, G. Effects
- Schoonees, A., Visser, J., Musekiwa, A., and Volmink, J. Pycnogenol(R) (extract of French maritime pine bark) for the treatment of chronic disorders. Cochrane.Database.Syst.Rev. 2012;4:CD008294.
- Wang S, Tan D Zhao Y et al. The effect of pycnogenol on the microcirculation, platelet function and ischemic myocardium in patients with coronary artery diseases. Eur Bull Drug Res 1999;7:19-25.
Horsetail 14 references
- Sudan BJ. Seborrhoeic dermatitis induced by nicotine of horsetails (Equisetum arvense L.). Contact Dermatitis 1985;13:201-2.
- Perez Gutierrez RM, Laguna GY, Walkowski A. Diuretic activity of Mexican equisetum. J Ethnopharmacol 1985;14:269-72. PubMed
- Lemus I, Garcia R, Erazo S, et al. Diuretic activity of an Equisetum bogotense tea (Platero herb): evaluation in healthy volunteers. J Ethnopharmacol 1996;54:55-8. PubMed
- Revilla MC, Andrade-Cetto A, Islas S, Wiedenfeld H. Hypoglycemic effect of Equisetum myriochaetum aerial parts on type 2 diabetic patients. J Ethnopharmacol 2002;81:117-20. PubMed
- Tiktinskii, O. L. and Bablumian, I. A. [Therapeutic action of Java tea and field horsetail in uric acid diathesis]. Urol.Nefrol.(Mosk) 1983;3(1):47-50.
- Henderson JA, Evans EV, and McIntosh RA. The antithiamine action of Equisetum. J Amer Vet Med Assoc 1952;120:375-378.
- Carneiro DM, Freire RC, Honório TC, Zoghaib I, Cardoso FF, Tresvenzol LM, de Paula JR, Sousa AL, Jardim PC, da Cunha LC. Randomized, Double-Blind Clinical Trial to Assess the Acute Diuretic Effect of Equisetum arvense (Field Horsetail) in Healthy Voluntee
- Klnçalp S, Ekiz F, Basar Ö, Coban S, Yüksel O. Equisetum arvense (Field Horsetail)-induced liver injury. Eur J Gastroenterol Hepatol. 2012 Feb;24(2):213-4. PubMed
- Ortega García JA, Angulo MG, Sobrino-Najul EJ, Soldin OP, Mira AP, Martínez-Salcedo E, Claudio L. Prenatal exposure of a girl with autism spectrum disorder to 'horsetail' (Equisetum arvense) herbal remedy and alcohol: a case report. J Med Case Rep. 2011 M PubMed
- Cordova E, Morganti L, Rodriguez C. Possible Drug-Herb Interaction between Herbal Supplement Containing Horsetail (Equisetum arvense) and Antiretroviral Drugs. J Int Assoc Provid AIDS Care. 2017;16(1):11-13.
- García Gavilán MD, Moreno García AM, Rosales Zabal JM, Navarro Jarabo JM, Sánchez Cantos A. Case of drug-induced acute pancreatitis produced by horsetail infusions. Rev Esp Enferm Dig. 2017 Apr;109(4):301-304. PubMed
- Vieira GT, de Oliveira TT, Carneiro MAA, et al. Antidiabetic effect of Equisetum giganteum L. extract on alloxan-diabetic rabbit. J Ethnopharmacol. 2020;260:112898. PubMed
- Health Canada. Organism-Equisetum arvense. Available at: http://webprod.hc-sc.gc.ca/nhpid-bdipsn/ingredReq.do?id=6117&lang=eng. Accessed 21-July 2021.
- Bates D, Duong TB, Kheyson S, Moore K. Hyponatremia Secondary to Decreased Oral Intake and SIADH and Possibly Exacerbated by Horsetail (Equisetum arvense). Can J Hosp Pharm 2021;74(4):386-389. PubMed
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