Interactions on record — worth a quick check against your medications. Based on 2 of 4 ingredients. Check your meds →
Dietary supplement

Curaphen Extra Strength Ingredients & Drug Interactions

by EuroMedica

Tablet Or Pill Category: Other Combinations
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Curaphen Extra Strength is a dietary supplement by EuroMedica with 4 active ingredients. Its ingredients are commonly taken for heart and circulatory health, blood clot prevention, high blood pressure.Based on those ingredients, 1,126 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are BOS-10, Nattokinase. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Curaphen Extra Strength by EuroMedica

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

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 4 active ingredients.
  • “Proprietary Complex” is a proprietary blend — the label gives one combined amount (902 mg) without saying how much of each component you get.

Curaphen Extra Strength contains four active ingredients. Nattokinase is an enzyme derived from a fermented soybean food that's thought to support blood flow and circulation.

The other three — BOS-10, DL-Phenylalanine, and BCM-95 Curcugreen (a curcumin extract) — round out the formula. The tablet also contains several inactive ingredients used as binders and fillers: cellulose powder, stearic acid, silica, magnesium stearate, croscarmellose sodium, and ethylcellulose.

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.

Why this rating?
  • The label markets this product for: Professional pain formula with curcumin and boswellia.
  • We looked for evidence on: Pain, Inflammation, Joint pain, Musculoskeletal pain.
  • The closest evidence on file: Boswellia Serrata is rated "Insufficient Reliable Evidence To Rate" for Postoperative pain (Natural Medicines).
  • Also on file: Boswellia Serrata is rated "Insufficient Reliable Evidence To Rate" for Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS), Knee pain.

The evidence supporting nattokinase for heart health, circulation, and related conditions is currently insufficient to make reliable claims. Our data shows nattokinase has been studied for angina, atherosclerosis, heart disease, cancer, and chronic fatigue, but we don't have enough reliable research to confirm whether it works for any of these.

We hold no effectiveness data on the product's other three ingredients.

The evidence, ingredient by ingredient Nattokinase Boswellia Serrata

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Nattokinase is generally well tolerated when taken short-term, but its blood-thinning effect means you need to be careful if you have any bleeding risk. Rare cases of bleeding — including one of brain bleeding — have been reported with nattokinase use.

Some people may have allergic reactions to nattokinase or related compounds in fermented soy; symptoms can include throat and airway swelling and may appear within two hours of taking it. The safety data advises against nattokinase during pregnancy and while breastfeeding.

Side effects, ingredient by ingredient Nattokinase Boswellia Serrata

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?
  • 2 of the 2 matched ingredients can interact with medications — Boswellia Serrata, Nattokinase.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs.
  • For scale: 1,127 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, check whether you're on blood thinners or antiplatelet drugs (like aspirin, warfarin, or clopidogrel) — nattokinase poses a Moderate risk of increased bleeding with these. Also double-check if you take blood pressure medication, since nattokinase may lower pressure further (Moderate risk).

No interactions are documented for the other three ingredients we could not check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Curaphen Extra Strength is worth a second look if you're concerned about circulation, but nattokinase's blood-thinning and blood-pressure-lowering effects mean you'll want to check it against your medications first — especially if you take blood thinners or pressure meds. Talk to your pharmacist or doctor before you start, particularly if you have any bleeding risk or a sensitivity to fermented soy.

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

Assessment coverage: 2 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 21, 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 Curaphen Extra Strength, straight from the product label.

Brand EuroMedica
Barcode (UPC) 367703612061
Net contents 60 Tablet(s)
Market status On market
Date entered into DSLD Dec 21, 2024
DSLD ID 309440
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Halal, Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Curaphen Extra Strength by EuroMedica, 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 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
60
UPC/BARCODE
367703612061
IngredientAmount% DV
Calories5 Calorie(s)--
Total Carbohydrates1 Gram(s)1%
Nattokinase0 NP--
BOS-100 NP--
DL-Phenylalanine0 NP--
BCM-95 Curcugreen0 NP--
Proprietary Complex902 mg--

Other ingredients: Cellulose, Powder, Stearic Acid, Silica, Magnesium Stearate, Croscarmellose Sodium, Ethylcellulose

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.
Formulation

For Extra Powerful Relief, Curaphen Extra Strength is the Answer! Curaphen Extra Strength features higher levels of effective ingredients in a larger, more concentrated dosage form than regular strength Curaphen. Each ingredient addresses pain via a different clinical pathway, which results in significant pain relief. Occasional muscle pain due to exercise or overuse.

All ingredients established in human studies for safety and effectiveness. Does not interfere with stomach, liver or kidney function. Professional pain formula

Vegan

Non-GMO

No sugar, salt, yeast, wheat, gluten, corn, dairy products, artificial coloring, artificial flavoring, or artificial preservatives.

Color variations are normal.

Suggested/Recommended/Usage/Directions

Recommendations: One tablet daily. May take one tablet three times daily, or as directed by your healthcare practitioner.

Precautions

If pregnant or nursing, consult a healthcare practitioner before use.

Contains soy (less than 5 parts per million)

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

Clinically studied Curcumin and Boswellia

H Halal

CRC Kosher 328

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

H Halal CRC Kosher 328

See for yourself

Curaphen Extra Strength by EuroMedica label

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

What’s inside

The Ingredients in Curaphen Extra Strength by EuroMedica

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container60 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.

Proprietary Complex

902 mg per serving

Other (inactive) ingredients: Cellulose, Powder, Stearic Acid, Silica, Magnesium Stearate, Croscarmellose Sodium, Ethylcellulose. These complete the product’s ingredient list but are not active constituents.

Interaction report

Curaphen Extra Strength by EuroMedica Drug Interactions

Want to check YOUR meds against Curaphen Extra Strength?

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
1,126Drugs
1,126 Moderate

Ingredients driving the most interactions

BOS-10 952

Each ingredient & the kinds of drugs it affects

For each ingredient in Curaphen Extra Strength 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.

BOS-106 drug types · 952 drugs

Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, Boswellia serrata might increase the levels of CYP1A2 substrates.
In vitro research shows that Boswellia serrata gum resin inhibits CYP1A2 enzymes.

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

Theoretically, Boswellia serrata might increase the levels of CYP2C19 substrates.
In vitro research shows that Boswellia serrata gum resin inhibits CYP2C19 enzymes.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, Boswellia serrata might increase the levels of CYP2C9 substrates.
In vitro research shows that Boswellia serrata gum resin inhibits CYP2C9 enzymes.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, Boswellia serrata might increase the levels of CYP2D6 substrates.
In vitro research shows that Boswellia serrata gum resin inhibits CYP2D6 enzymes.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, Boswellia serrata might increase or decrease the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that Boswellia serrata gum resin inhibits CYP3A4 enzymes. Other in vitro research shows that Boswellia serrata extract inhibits CYP3A4 enzymes at most concentrations, although it may modestly induce enzyme activity at low concentrations.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, Boswellia serrata might alter the effects of immunosuppressive drugs.
Some in vitro research suggests that Boswellia serrata extracts might inhibit mediators of autoimmune disorders such as leukotrienes and reduce production of antibodies and cell-mediated immunity. However, other in vitro research suggests that, when coupled with calcium ions, boswellic acids containing the keto group have immunostimulant properties within specific cell signaling pathways.

Likelihood Possible Evidence D

Nattokinase2 drug types · 289 drugs

Anticoagulant/Antiplatelet Drugs

Nattokinase might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.
Nattokinase has thrombolytic and anticoagulant effects. There is a case report of intracranial hemorrhage in a patient who added nattokinase to aspirin therapy.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, nattokinase might increase the risk of hypotension when used with antihypertensive drugs.
Some clinical research suggests that nattokinase may reduce systolic and diastolic blood pressure.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Curaphen Extra Strength, from the product label.

EuroMedica

See all EuroMedica products
Name
EuroMedica
Street Address
955 Challenger Drive
City
Green Bay
State
WI
ZipCode
54311
Phone Number
866-842-7256
Pharmacist Counseling Corner

Curaphen Extra Strength by EuroMedica: Common Questions

Does Curaphen Extra Strength by EuroMedica interact with any medications?
Yes. Based on its ingredients, Curaphen Extra Strength has a known interaction with 1,126 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Curaphen Extra Strength contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take Curaphen Extra Strength if I'm on aspirin?
Not without checking first. Nattokinase can thin the blood and may increase bleeding risk when combined with aspirin — there's even a reported case of brain bleeding from this combination. Talk to your pharmacist or doctor before adding it.
Will this product lower my blood pressure?
Nattokinase may reduce blood pressure, according to some clinical research. If you already take blood pressure medication, combining them could potentially lower your pressure too much. Your pharmacist can help you figure out if it's safe for you.
Is it safe to take while pregnant or breastfeeding?
No. There isn't enough safety data to support nattokinase use during pregnancy, and safety while breastfeeding is unknown — the facts advise against it in both cases. Talk with your doctor if you're pregnant or nursing.
Can I take it if I have a soy allergy?
Be cautious. Nattokinase is made from fermented soy, and some people have had allergic reactions to it or compounds in it — symptoms like throat swelling can appear within a couple of hours. If you have soy sensitivity, check with your pharmacist first.
What is nattokinase supposed to do?
Nattokinase is an enzyme that may support blood flow and circulation, but the evidence we have is not strong enough yet to confirm whether it actually works for heart health or related conditions. More reliable research is needed.

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

Not sure if Curaphen Extra Strength 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.

Curaphen Extra Strength label
Sources

Sources & How We Checked

Curaphen Extra Strength'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 25 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.

Nattokinase 9 references
  1. Suzuki Y, Kondo K, Matsumoto Y, et al. Dietary supplementation of fermented soybean, natto, suppresses intimal thickening and modulates the lysis of mural thrombi after endothelial injury in rat femoral artery. Life Sci 2003;73:1289-98.. PubMed
  2. Sumi H, Hamada H, Nakanishi K, Hiratani H. Enchancement of fibrinolytic activity in plasma by oral administration of nattokinase. Acta Haematol 1990;84:139-43.
  3. Chang, Y. Y., Liu, J. S., Lai, S. L., Wu, H. S., and Lan, M. Y. Cerebellar hemorrhage provoked by combined use of nattokinase and aspirin in a patient with cerebral microbleeds. Intern Med 2008;47(5):467-469. PubMed
  4. Kim, J. Y., Gum, S. N., Paik, J. K., Lim, H. H., Kim, K. C., Ogasawara, K., Inoue, K., Park, S., Jang, Y., and Lee, J. H. Effects of nattokinase on blood pressure: a randomized, controlled trial. Hypertens.Res 2008;31(8):1583-1588. PubMed
  5. <p>Maruyama M, Sumi H (eds): Effect of natto diet on blood pressure, in Basic and Clinical Aspects of Japanese Traditional Food Natto II. Japan Technology Transfer Association (JTTAS), 1998, pp 1–3.</p>
  6. Kurosawa Y, Nirengi S, Homma T, et al. A single-dose of oral nattokinase potentiates thrombolysis and anti-coagulation profiles. Sci Rep 2015;5:11601. PubMed
  7. Ramachandran L, Aqeel A, Jafri A, Sidhu Y, Mohamed Djirdeh T. Nattokinase-associated hemoperitoneum in an elderly woman. Cureus 2021;13(12):e20074. PubMed
  8. Awatani-Yoshidome K, Hashimoto T, Satoh T. Anaphylaxis from nattokinase in a patient with fermented soybean (natto) allergy. Allergol Int 2022;71(1):153-4. PubMed
  9. Suzuki K, Nakamura M, Sato N, Futamura K, Matsunaga K, Yagami A. Nattokinase, a subtilisin family serine protease, is a novel allergen contained in the traditional Japanese fermented food natto. Allergol Int 2022.

See these in context on the Nattokinase monograph →

Boswellia Serrata 16 references
  1. Gupta I, Gupta V, Parihar A, et al. Effects of Boswellia serrata gum resin in patients with bronchial asthma: results of a double-blind, placebo-controlled, 6-week clinical study. Eur J Med Res 1998;3:511-4.
  2. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  3. Kimmatkar N, Thawani V, Hingorani L, et al. Efficacy and tolerability of Boswellia serrata extract in treatment of osteoarthritis of knee--a randomized double blind placebo controlled trial. Phytomedicine 2003;10:3-7. PubMed
  4. Liu JJ, Nilsson A, Oredsson S, et al. Boswellic acids trigger apoptosis via a pathway dependent on caspase-8 activation but independent on Fas/Fas ligand interaction in colon cancer HT-29 cells. Carcinogenesis 2002;23:2087-93. PubMed
  5. Wildfeuer A, Neu IS, Safayhi H, et al. Effects of boswellic acids extracted from a herbal medicine on the biosynthesis of leukotrienes and the course of experimental autoimmune encephalomyelitis. Arzneimittelforschung 1998;48:668-74.
  6. Gupta I, Parihar A, Malhotra P, et al. Effects of gum resin of Boswellia serrata in patients with chronic colitis. Planta Med 2001;67:391-5. PubMed
  7. Sengupta K, Alluri KV, Satish AR, et al. A double blind, randomized, placebo controlled study of the efficacy and safety of 5-Loxin. Arthritis Res Ther 2008;10:R85.
  8. Sengupta K, Krishnaraju AV, Vishal AA, et al. Comparative efficacy and tolerability of 5-Loxin and Aflapin against osteoarthritis of the knee: a double blind, randomized, placebo controlled clinical study. Int J Med Sci 2010;7:366-77.
  9. Ernst E. Frankincense: systematic review. BMJ 2008;337:a2813. PubMed
  10. Kirste S, Treier M, Wehrle SJ, et al. Boswellia serratea extract acts on cerebral edema in patients irradiated for brain tumors: a prospective, randomized, placebo-controlled, double-blind pilot trial. Cancer 2011;117:3788-95.
  11. Frank A, Unger M. Analysis of frankincense from various Boswellia species with inhibitory activity on human drug metabolising cytochrome P450 enzymes using liquid chromatography mass spectrometry after automated on-line extraction. J Chromatogr A 2006;111 PubMed
  12. Altmann A, Poeckel D, Fischer L, et al. Coupling of boswellic acid-incuded Ca2+ mobilisation and MAPK activation to lipid metabolism and peroxide formation in human leucocytes. Br J Pharmacol 2004;141:223-32.
  13. El Fortia, M., Badi, H., Elalem, Kh, Kadiki, O., and Topov, Y. Olibanum bezoar: complication of a traditional popular medicine. East Mediterr.Health J 2006;12(6):927-929.
  14. Meshkat S, Mahmoodi Baram S, Rajaei S, et al. Boswellia serrata extract shows cognitive benefits in a double-blind, randomized, placebo-controlled pilot clinical trial in individuals who suffered traumatic brain injury. Brain Inj 2022;36(4):553-559. PubMed
  15. Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed
  16. Valente IVB, Garcia D, Abbott A, et al. The anti-proliferative effects of a frankincense extract in a window of opportunity phase ia clinical trial for patients with breast cancer. Breast Cancer Res Treat 2024;204(3):521-530. PubMed

See these in context on the Boswellia Serrata 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

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