Pycnogenol 60 mg Ingredients & Drug Interactions
by NOW
What is this page for?
First and foremost: checking Pycnogenol 60 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 60 mg is a dietary supplement by NOW with 3 active ingredients. Its ingredients are commonly taken for circulation and vein health, antioxidant support, skin health and aging.Based on those ingredients, 415 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Pycnogenol, Acerola powder, Rutin powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Pycnogenol 60 mg by NOW
Ask about any prescription or over-the-counter medication and we check it for interactions with Pycnogenol 60 mg by NOW — 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 60 mg by NOW
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.
What’s inside
Full disclosure
This product contains 3 active ingredients. Pycnogenol is a plant extract we cannot verify for interactions.
Rutin powder is a flavonoid (a plant compound with antioxidant properties) that may support blood vessel health. Acerola powder is a concentrated source of vitamin C from a tropical fruit.
The product also includes inactive ingredients — hypromellose, microcrystalline cellulose, and stearic acid — which are the capsule material and binders that help hold the supplement together.
Does it work?
Not established
The evidence in our data does not establish how well this product works. Acerola is rated as possibly effective for vitamin C deficiency, but rutin has insufficient reliable evidence for the conditions listed in our data — aging skin, autism spectrum disorder, inflammatory bowel disease, diabetes, exercise-induced respiratory infections, and hemorrhoids.
We have no effectiveness ratings on file for pycnogenol.
How safe is it?
Well-documented data
Rutin is generally well tolerated in food and short-term supplement use, but long-term safety data are limited; we recommend you avoid high-dose supplement forms unless your doctor advises otherwise. Rutin may cause headache, flushing, or rashes in some people.
Acerola is generally considered safe in food amounts, though large doses of vitamin C (over 2,000 mg daily) can cause stomach upset and diarrhea. A case report noted one person who had an allergic reaction to acerola juice with symptoms of rash and breathing difficulty, and another involved rectal obstruction in a child who ate acerola fruits daily for a week.
Breastfeeding safety is not established for rutin — the data advises against supplement doses while breastfeeding. Acerola's pregnancy and lactation safety rating is incomplete in our data; talk to your doctor before use if you are pregnant or nursing.
Meds to double-check
Moderate interaction found
Check your medications against this product before you start, especially if you take diabetes drugs (risk of low blood sugar), chemotherapy like alkylating agents or antitumor antibiotics (risk of reduced drug effectiveness), oral contraceptives or hormone replacement therapy, aspirin, blood thinners like warfarin, or aluminum antacids. No interactions are documented for pycnogenol — we could not check that ingredient.
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.
If you take diabetes medication, a blood thinner, or chemotherapy drugs, check your exact medications with the tool on this page before starting. Rutin and acerola are generally well tolerated, but long-term safety data are limited, and some people report headaches or skin reactions.
Ask your pharmacist or doctor if this product fits your health plan.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 25, 2021.
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 60 mg, straight from the product label.
| Brand | NOW |
|---|---|
| Barcode (UPC) | 733739032775 |
| Net contents | 50 Veg Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Mar 25, 2021 |
| DSLD ID | 245762 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Gluten Free, Dairy Free |
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 60 mg by NOW, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Pycnogenol | 60 mg | -- |
| Rutin powder | 240 mg | -- |
| Acerola powder | 200 mg | -- |
Other ingredients: Hypromellose, Microcrystalline Cellulose, Stearic Acid
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.
Suggested/Recommended/Usage/Directions
Suggested Usage: Take 1 capsule 1 to 3 times daily.
Formula
Pycnogenol is a unique combination of proanthocyanidins obtained from the bark of the French maritime pine.
Triangle K (Kosher)
Pycnogenol Horphag Research
Free radical scavenger Pycnogenol 60 mg With Acerola & Rutin powder
Formulation
As a potent natural scavenger of free radicals, Pycnogenol helps to maintain healthy cellular structures and supports a healthy, balanced immune system response to normal metabolic stress. Through these mechanisms, Pycnogenol helps to maintain healthy eye, skin, and joint tissues. In addition, scientific studies have shown that Pycnogenol helps to maintain vascular strength and function.
Healthy vascular function Balanced immune response
Vegetarian/vegan
Non-GMO
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
Natural color variation may occur in this product.
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.
Precautions
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Seals/Symbols
GMP Quality Assured
Triangle K (Kosher)
FDA Statement of Identity
A Dietary Supplement
General Statements
General health Family owned since 1968.
Brand IP Statement(s)
Pycnogenol is a registered trademark of Horphag Research Ltd. Use of this product may be protected by one or more U.S. patents and other international patents.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Pycnogenol 60 mg by NOW 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 60 mg by NOW
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Veg Capsule(s) Dosage formCapsule Servings per container50 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.
Pycnogenol
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 monograph & interactionsRutin powder
Interacts with86 drugs
Rutin is a plant flavonoid (often taken from buckwheat or citrus) that people use mainly for blood vessel and circulation problems like varicose veins...
Rutin powder monograph & interactionsAcerola powder
Interacts with128 drugs
Acerola is a small tropical fruit prized for its very high natural vitamin C content, and it is mostly used as a food-based source of vitamin C and an...
Acerola powder monograph & interactionsOther (inactive) ingredients: Hypromellose, Microcrystalline Cellulose, Stearic Acid. These complete the product’s ingredient list but are not active constituents.
Pycnogenol 60 mg by NOW Drug Interactions
HelloPharmacist Interaction Report
Pycnogenol 60 mg by NOW contains three ingredients, and we have interaction data for two of them.
The most serious concern is acerola powder, which contains vitamin C and may theoretically reduce how well chemotherapy drugs work — specifically alkylating agents and antitumor antibiotics (both Moderate severity). This happens because vitamin C is an antioxidant, and some chemotherapy drugs rely on generating free radicals to kill cancer cells.
Read the full breakdown — every affected drug type, severity by severity
Rutin powder carries a Moderate interaction with antidiabetes drugs: animal research suggests rutin may lower blood sugar, which could increase the risk of low blood sugar (hypoglycemia) if you're already taking diabetes medication. Acerola also interacts with several other drug types at Minor severity — estrogens (oral contraceptives and hormone replacement therapy), aspirin, aluminum-containing antacids, and warfarin (a blood thinner).
These Minor interactions are less likely to cause problems because acerola's vitamin C content in this product is probably too low to have a big effect, but they're worth knowing about.
We could not check pycnogenol itself — we hold no interaction data for it. Altogether, these interactions span 213 individual medications.
Use the medication checker on this page to look up your exact drugs before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Pycnogenol 60 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 60 mg interact with 415 drugs. Click any drug to see the details.
3 of the 3 ingredients in Pycnogenol 60 mg interact with drugs. Each result below shows which ingredient is responsible. Pycnogenol Acerola powder Rutin powder
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + 6-mercaptopurine interactionAbciximabReoPro
How Abciximab interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
Rutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Acarbose interactionPycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Acenocoumarol interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Acetaminophen, Aspirin interactionAcerola PowderAspirin Minor
Interaction Summary
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Read the full Acerola Powder + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Acetaminophen, Aspirin, Caffeine interactionAcerola PowderAspirin Minor
Interaction Summary
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Read the full Acerola Powder + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Acetaminophen, Ibuprofen interactionAcetohexamideDymelor
How Acetohexamide interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Acetohexamide interactionRutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Acetohexamide interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Acetylsalicylic Acid interactionAcerola PowderAspirin Minor
Interaction Summary
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Read the full Acerola Powder + Acetylsalicylic Acid interactionAdalimumabHumira
How Adalimumab interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab interactionAdalimumab-adazHyrimoz
How Adalimumab-adaz interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-adaz interactionAdalimumab-adbmCyltezo
How Adalimumab-adbm interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-adbm interactionAdalimumab-afzbAbrilada
How Adalimumab-afzb interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-afzb interactionAdalimumab-attoAmjevita
How Adalimumab-atto interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-atto interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-bwwd interactionAdalimumab-fkjpHulio
How Adalimumab-fkjp interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Adalimumab-fkjp interactionAlbiglutideTanzeum
How Albiglutide interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
Rutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Albiglutide interactionPycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Albiglutide interactionAlefaceptAmevive
How Alefacept interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Alefacept interactionAlemtuzumabCampath
How Alemtuzumab interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Alemtuzumab interactionAlogliptinNesina
How Alogliptin interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
Rutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Alogliptin interactionPycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Alogliptin, Metformin interactionRutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
Rutin PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Rutin Powder + Alogliptin, Pioglitazone interactionPycnogenolAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, maritime pine bark extract might increase the risk of hypoglycemia when used with antidiabetes drugs.
Read the full Pycnogenol + Alogliptin, Pioglitazone interactionAlteplase, TpaActilyse, Activase
How Alteplase, Tpa interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Alteplase, Tpa interactionAltretamineHexalen
How Altretamine interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
Acerola PowderAlkylating Agents Moderate
Interaction Summary
Theoretically, the antioxidant effects of acerola might reduce the effectiveness of alkylating agents.
Read the full Acerola Powder + Altretamine interactionAluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2
How Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAcerola PowderAspirin, Aluminum Minor
Interaction Summary
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Read the full Acerola Powder + Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium Hydroxide interactionAluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin
How Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interacts with Pycnogenol 60 mg — through 2 ingredients. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAcerola PowderAspirin, Aluminum Minor
Interaction Summary
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Read the full Acerola Powder + Aluminum Hydroxide, Aspirin, Magnesium Hydroxide interactionAnacaulase-bcdbNexoBrid
How Anacaulase-bcdb interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Anacaulase-bcdb interactionAnagrelideAgrylin
How Anagrelide interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolAnticoagulant/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 + Anagrelide interactionAnifrolumab-fniaSaphnelo
How Anifrolumab-fnia interacts with Pycnogenol 60 mg — through 1 ingredient. Tap an ingredient for the detail:
PycnogenolImmunosuppressants Moderate
Interaction Summary
Theoretically, maritime pine bark extract might decrease the effectiveness of immunosuppressant therapy.
Read the full Pycnogenol + Anifrolumab-fnia interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Pycnogenol 60 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
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.
Acerola powder
Alkylating Agents
Theoretically, the antioxidant effects of acerola might reduce the effectiveness of alkylating agents.
Acerola contains vitamin C, an antioxidant. There is concern that antioxidants might reduce the activity of chemotherapy drugs that generate free radicals, such as alkylating agents. In contrast, other researchers theorize that antioxidants might make alkylating chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as vitamin C have on chemotherapy.
Antitumor Antibiotics
Theoretically, the antioxidant effects of acerola might reduce the effectiveness of antitumor antibiotics.
Acerola contains vitamin C, an antioxidant. There is concern that antioxidants might reduce the activity of chemotherapy drugs that generate free radicals, such as antitumor antibiotics. In contrast, other researchers theorize that antioxidants might make antitumor antibiotic chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effects, if any, antioxidants such as vitamin C have on antitumor antibiotic chemotherapy.
Aluminum
Theoretically, concomitant use of acerola with aluminum salts might increase the amount of aluminum absorbed.
Acerola contains vitamin C. It is thought that vitamin C chelates aluminum, keeping it in solution and available for absorption. In people with normal renal function, urinary excretion of aluminum likely increases, making aluminum retention and toxicity unlikely. However, patients with renal failure who take aluminum-containing compounds, such as phosphate binders, should avoid acerola in doses that provide more vitamin C than the recommended dietary allowances.
Aspirin
Theoretically, acerola might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
Acerola contains vitamin C. It has been suggested that acidification of the urine by vitamin C can decrease the urinary excretion of salicylates, increasing plasma salicylate levels. However, short-term use of up to 6 grams daily of vitamin C does not seem to affect urinary pH or salicylate excretion. The vitamin C content of acerola is typically about 2000 mg per 100 grams. Thus, a clinically significant interaction between acerola and aspirin is unlikely.
Estrogens
Theoretically, concomitant use of acerola with estrogens might increase estrogenic effects.
Acerola contains vitamin C. Increases in plasma estrogen levels of up to 55% have occurred under some circumstances when vitamin C is taken concurrently with oral contraceptives or hormone replacement therapy, including topical products. It is suggested that vitamin C prevents oxidation of estrogen in the tissues, regenerates oxidized estrogen, and reduces sulfate conjugation of estrogen in the gut wall. When tissue levels of vitamin C are high, these processes are already maximized and supplemental vitamin C does not have any effect on estrogen levels. However, increases in plasma estrogen levels may occur when women who are deficient in vitamin C take supplements.
Warfarin (Coumadin)
Theoretically, acerola might reduce the effectiveness of warfarin; however, its vitamin C content is likely too low to produce clinically significant effects.
Acerola contains vitamin C. High doses of vitamin C may reduce the response to warfarin, possibly by causing diarrhea and reducing warfarin absorption. This occurred in two people who took up to 16 grams daily of vitamin C, and resulted in decreased prothrombin time. Lower doses of 5-10 grams daily of vitamin C can also reduce warfarin absorption, but this does not seem to be clinically significant. The vitamin C content of acerola is typically about 2000 mg per 100 grams. Thus, a clinically significant interaction between acerola and warfarin is unlikely.
Rutin powder
Antidiabetes Drugs
Theoretically, taking rutin with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that rutin has hypoglycemic effects.
Brand information
Manufacturer and brand details for Pycnogenol 60 mg, from the product label.
NOW
See all NOW products- Name
- NOW Foods
- Street Address
- 395 S. Glen Ellyn Rd.
- City
- Bloomingdale
- State
- IL
- ZipCode
- 60108
- Web Address
- nowfoods.com
Pycnogenol 60 mg by NOW: Common Questions
Does Pycnogenol 60 mg by NOW interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does this product work for what I want to use it for?
Is it safe to take this while breastfeeding?
Can this cause side effects?
What is acerola powder?
Can I take this with my diabetes medication?
Is this product a replacement for vitamin C supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Pycnogenol 60 mg is safe with your meds?
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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Pycnogenol 60 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Maritime 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 monographRutin
Interacts with 86 drugsRutin is a plant flavonoid (often taken from buckwheat or citrus) that people use mainly for blood vessel and circulation problems like varicose veins and hemorrhoids. The evidence is limite...
Read the full Rutin monograph → Herb & supplement monographAcerola
Interacts with 128 drugsAcerola is a small tropical fruit prized for its very high natural vitamin C content, and it is mostly used as a food-based source of vitamin C and antioxidants. While vitamin C itself has w...
Read the full Acerola monograph →Sources & How We Checked
Pycnogenol 60 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 36 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.
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.
Rutin 2 references
- Mehta DK (Ex Ed). British National Formulary, Number 37. British Medical Association and Royal Pharmaceutical Society of Great Britain: London, England, March 1999.
- Sun C, Wang L, Sun J, Wang Z, Tang Z. Hypoglycemic and hypolipidemic effects of rutin on hyperglycemic rats. J Tradit Chin Med. 2020;40(4):640-645.
Acerola 20 references
- Back DJ, Breckenridge AM, MacIver M, et al. Interaction of ethinyloestradiol with ascorbic acid in man. Br Med J (Clin Res Ed) 1981;282:1516.
- Morris JC, Beeley L, Ballantine N. Interaction of ethinyloestradiol with ascorbic acid in man [letter]. Br Med J (Clin Res Ed) 1981;283:503.
- Labriola D, Livingston R. Possible interactions between dietary antioxidants and chemotherapy. Oncology 1999;13:1003-8.
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington, DC: National Academy Press, 2000. Available at: http://www.nap.edu/books/0309069351/html/.
- Rosenthal G. Interaction of ascorbic acid and warfarin. JAMA 1971;215:1671. DOI
- Hume R, Johnstone JM, Weyers E. Interaction of ascorbic acid and warfarin. JAMA 1972;219:1479. DOI
- Smith EC, Skalski RJ, Johnson GC, Rossi GV. Interaction of ascorbic acid and warfarin. JAMA 1972;221:1166. DOI
- Domingo JL, Gomez M, Llobet JM, Richart C. Effect of ascorbic acid on gastrointestinal aluminum absorption (letter). Lancet 1991;338:1467.
- Domingo JL, Gomez M, Llobet JM, Corbella J. Influence of some dietary constituents on aluminum absorption and retention in rats. Kidney Int 1991;39:598-601. PubMed
- Partridge NA, Regnier FE, White JL, Hem SL. Influence of dietary constituents on intestinal absorption of aluminum. Kidney Int 1989;35:1413-7. PubMed
- Mc Leod DC, Nahata MC. Inefficacy of ascorbic acid as a urinary acidifier (letter). N Engl J Med 1977;296:1413. DOI
- Hansten PD, Hayton WL. Effect of antacid and ascorbic acid on serum salicylate concentration. J Clin Pharmacol 1980;20:326-31. PubMed
- Vihtamaki T, Parantainen J, Koivisto AM, et al. Oral ascorbic acid increases plasma oestradiol during postmenopausal hormone replacement therapy. Maturitas 2002;42:129-35. PubMed
- Feetam CL, Leach RH, Meynell MJ. Lack of a clinically important interaction between warfarin and ascorbic acid. Toxicol Appl Pharmacol 1975;31:544-7. PubMed
- Weintraub M, Griner PF. Warfarin and ascorbic acid: lack of evidence for a drug interaction. Toxicol Appl Pharmacol 1974;28:53-6. PubMed
- Prasad KN. Rationale for using high-dose multiple dietary antioxidants as an adjunct to radiation therapy and chemotherapy. J Nutr 2004;134:3182S-3S. PubMed
- Conklin KA. Cancer chemotherapy and antioxidants. J Nutr 2004;134:3201S-3204S. PubMed
- Denadai R, Souza FM, Valle MR. Fecal impaction by rectal acerola bezoar. Indian J Pediatr 2013;80(5):432-3. PubMed
- Raulf-Heimsoth M, Stark R, Sander I, et al. Anaphylactic reaction to apple juice containing acerola: cross-reactivity to latex due to prohevein. J Allergy Clin Immunol 2002;109(4):715-6. PubMed
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.
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