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

Omega Green + DHA Ingredients & Drug Interactions

by Nikken Wellness Kenzen

Omega Green + DHA label
See full label image
Capsule Category: Botanical With Nutrients
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Omega Green + DHA against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Omega Green + DHA is a dietary supplement by Nikken Wellness Kenzen with 3 active ingredients. Its ingredients are commonly taken for urinary tract infection prevention, bladder health, antioxidant support.Based on those ingredients, 980 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cranberry seed Oil, Life's DHA, Hi Omega Flax Seed Oil, Powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Omega Green + DHA by Nikken Wellness Kenzen

Ask about any prescription or over-the-counter medication and we check it for interactions with Omega Green + DHA by Nikken Wellness Kenzen — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Omega Green + DHA by Nikken Wellness Kenzen

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

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 3 active ingredients.
  • “Omega Proprietary Blend” is a proprietary blend — the label gives one combined amount (2,000 mg) without saying how much of each component you get.

This product contains three active ingredients. Cranberry seed oil is included for urinary tract health — it's possibly effective for UTIs, though the evidence for other uses like cognitive decline or cancer prevention isn't established.

Flaxseed oil (Hi Omega Flax Seed Oil, Powder) is a plant-based omega-3 source, but the evidence suggests it's not effective for obesity, arthritis, bipolar disorder, or cholesterol. Life's DHA is an algal (seaweed-derived) source of docosahexaenoic acid, an omega-3 fatty acid possibly effective for preventing preterm labor, though it hasn't shown benefit for fractures, cystic fibrosis, or cognitive function.

The product also contains several inactive ingredients — oat fiber, glucose syrup solids, modified starch, mannitol, and others — that serve as fillers and binders in the capsule.

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: Heart health and omega-3 fatty acid support.
  • We looked for evidence on: Atherosclerosis, Cardiovascular disease (CVD), Coronary heart disease (CHD), Hyperlipidemia, Hypertension, Metabolic syndrome — and 2 related terms.
  • The closest evidence on file: Flaxseed Oil is rated "Possibly Ineffective" for Hyperlipidemia (Natural Medicines).
  • Also on file: Cranberry is rated "Insufficient Reliable Evidence To Rate" for Cardiovascular disease (CVD), Hyperlipidemia, Hypertension, Metabolic syndrome.
  • Also on file: Flaxseed Oil is rated "Insufficient Reliable Evidence To Rate" for Atherosclerosis, Cardiovascular disease (CVD).

Cranberry seed oil is possibly effective for urinary tract infections, but the evidence doesn't support its use for age-related cognitive decline, benign prostatic hyperplasia, cancer, fatty liver disease, or chronic fatigue. Flaxseed oil shows possibly ineffective ratings for obesity, rheumatoid arthritis, bipolar disorder, and high cholesterol — it doesn't appear to deliver on those claims.

DHA (algal oil) is possibly effective only for preventing preterm labor; evidence for fractures, cystic fibrosis, physical performance, or cognitive function is either lacking or shows it doesn't work. If you're taking this primarily for conditions other than UTI prevention or preterm labor support, the science doesn't back those uses.

The evidence, ingredient by ingredient Cranberry Flaxseed Oil Algal Oil

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 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.

Cranberry seed oil is generally well tolerated, though concentrated supplement doses haven't been well studied — ask your provider before use. The most common side effects are diarrhea and gastrointestinal discomfort; nausea and vomiting have been reported at some doses.

One case of skin redness and itching was reported. Cranberry is not a substitute for medical treatment of infections.

Flaxseed oil is generally well tolerated in most adults, though limited safety data exist. Gastrointestinal side effects — dry mouth, changes in bowel habits, and indigestion — occur in a small number of patients at typical doses; high doses (30 grams daily or more) have caused loose stools and diarrhea.

Severe allergic reactions like anaphylaxis are rare. DHA (algal oil) is generally well tolerated at typical supplement doses.

One parent reported increased hair loss after their child's supplementation ended, though it's unclear if DHA caused it. DHA may theoretically increase low-density lipoprotein (LDL) cholesterol by about 8%.

For pregnancy and breastfeeding, cranberry is likely safe, DHA is likely safe (though use under provider guidance), and flaxseed oil has no pregnancy/breastfeeding data on file — talk to your provider before using it during these times.

Side effects, ingredient by ingredient Cranberry Flaxseed Oil Algal Oil

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?
  • 3 of the 3 matched ingredients can interact with medications — Cranberry, Flaxseed Oil, Algal Oil.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 981 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.

Double-check before starting if you take blood thinners like warfarin (Coumadin) or other anticoagulant/antiplatelet drugs — both cranberry and flaxseed oil increase bleeding risk (Moderate severity). Blood pressure medications like nifedipine (Procardia) and antihypertensive drugs generally may have additive lowering effects (Moderate).

Cholesterol drugs, especially atorvastatin (Lipitor), may reach dangerous levels from the cranberry component (Moderate), and ezetimibe (Zetia) absorption is blocked by flaxseed (Moderate). Diabetes medications may have reduced effectiveness from the DHA ingredient (Moderate).

Ask your pharmacist to check your specific drugs.

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.

If you're using this for UTI prevention, the cranberry ingredient has evidence behind it — just watch for diarrhea and gastrointestinal upset. If you're pregnant or considering preterm labor prevention, the DHA may help, but use it only under your provider's guidance.

The flaxseed and DHA components don't work for the conditions they're sometimes marketed for (cholesterol, arthritis, cognitive function). Most important: if you take blood thinners, blood pressure medications, cholesterol drugs, or diabetes medications, check with your pharmacist before starting this product.

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 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 Omega Green + DHA, straight from the product label.

Brand Nikken Wellness Kenzen
Barcode (UPC) #15472
Net contents 90 Vegetarian Capsule(s); 2.76 Ounce(s); 78.12 Gram(s)
Market status On market
Date entered into DSLD Dec 21, 2024
DSLD ID 322126
Product type Botanical With Nutrients
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Dairy 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 Omega Green + DHA by Nikken Wellness Kenzen, 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:
3 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
30
UPC/BARCODE
#15472
IngredientAmount% DV
Cranberry seed Oil0 NP--
Omega Proprietary Blend2000 mg--
Hi Omega Flax Seed Oil, Powder0 NP--
Life's DHA0 NP--

Other ingredients: Oat Fiber, Glucose syrup solids, Modified Starch, Mannitol, Sodium Ascorbate, Sodium Polyphosphate, high oleic Sunflower oil, Tricalcium Phosphate, Sunflower Lecithin, Glycerol Mono- and Distearate, Natural Flavors, Silica, Mixed Natural Tocopherols, Ascorbyl Palmitate, Cellulose, Glycerin, Calcium Carbonate

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.
Suggested/Recommended/Usage/Directions

Recommended use: Take three (3) capsules daily.

Precautions

If you are allergic to any of these ingredients, or are pregnant or nursing, consult a physician before taking this or any other dietary supplement.

If you are allergic to any of these ingredients, or are pregnant or nursing, consult a physician before taking this or any other dietary supplement.

Keep out of reach of children.

Do not exceed the recommended dose. Food Supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not use if safety seal under cap is broken or missing.

Storage

Store in a dry place at room temperature.

FDA Disclaimer Statement

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

Formulation

Made in USA

Certified Vegan Vegan.org Heart-healthy Vegan Omegas 3-6-9

Brand IP Statement(s)

Copyright 2018 Nikken Inc.

Seals/Symbols

OU (Kosher) Certified Vegan Vegan.org

Formula

OU (Kosher)

Heart-healthy Vegan Omegas 3-6-9

FDA Statement of Identity

Dietary Supplement

General Statements

Nikken is committed to providing the highest-quality products, enabling everyone to achieve Active Wellness.

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

See for yourself

Omega Green + DHA by Nikken Wellness Kenzen label

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

Omega Green + DHA label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Omega Green + DHA by Nikken Wellness Kenzen

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size3 Capsule(s) Dosage formCapsule Servings per container30 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.

Omega Proprietary Blend

2000 mg per serving

Other (inactive) ingredients: Oat Fiber, Glucose syrup solids, Modified Starch, Mannitol, Sodium Ascorbate, Sodium Polyphosphate, High oleic Sunflower oil, Tricalcium Phosphate, Sunflower Lecithin, Glycerol Mono- and Distearate, Natural Flavors, Silica, Mixed Natural Tocopherols, Ascorbyl Palmitate, Cellulose, Glycerin, Calcium Carbonate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Omega Green + DHA by Nikken Wellness Kenzen Drug Interactions

Want to check YOUR meds against Omega Green + DHA?

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
980Drugs
951 Moderate 29 Minor

Ingredients driving the most interactions

Cranberry seed Oil 712
Life's DHA 375
Hi Omega Flax Seed Oil, Powder 293

Individual Drug Interactions

The ingredients in Omega Green + DHA interact with 980 drugs. Click any drug to see the details.

3 of the 3 ingredients in Omega Green + DHA interact with drugs. Each result below shows which ingredient is responsible. Cranberry seed Oil Life's DHA Hi Omega Flax Seed Oil, Powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Omega Green + DHA 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.

Cranberry seed Oil6 drug types · 712 drugs

Atorvastatin (Lipitor)

Theoretically, cranberry might increase levels and adverse effects of atorvastatin.
In one case report, a patient taking atorvastatin experienced upper back pain, rhabdomyolysis, and abnormal liver function after drinking cranberry juice 16 ounces daily for 2 weeks. Theoretically, this may have been caused by inhibition of cytochrome P450 3A4 (CYP3A4) enzymes by cranberry juice, as atorvastatin is a CYP3A4 substrate. Creatinine kinase and liver enzymes normalized within 2 weeks of stopping cranberry juice. Patients taking atorvastatin should avoid large quantities of cranberry juice.

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

Theoretically, cranberry might increase the levels and adverse effects of CYP3A4 substrates.
A case of upper back pain, rhabdomyolysis, and abnormal liver function has been reported for a patient taking atorvastatin, a CYP3A4 substrate, in combination with cranberry juice 16 ounces daily for 2 weeks. Creatinine kinase and liver enzymes normalized within 2 weeks of stopping cranberry juice. Also, animal research suggests that cranberry juice, administered intraduodenally 30 minutes prior to nifedipine, a CYP3A4 substrate, inhibits nifedipine metabolism and increases the area under the concentration-time curve by 1.6-fold compared to control.

Likelihood Possible Evidence D
Nifedipine (Procardia)

Theoretically, cranberry might increase the levels and adverse effects of nifedipine.
Animal research suggests that cranberry juice, administered intraduodenally 30 minutes prior to nifedipine treatment, inhibits nifedipine metabolism and increases the area under the concentration-time curve by 1.6-fold compared to control. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, cranberry might increase the levels and adverse effects of warfarin. However, research is conflicting.
There is contradictory evidence about the effect of cranberry juice on warfarin. Case reports have linked cranberry juice consumption to increases in the international normalized ratio (INR) in patients taking warfarin, resulting in severe spontaneous bleeding and excessive postoperative bleeding. Daily consumption of cranberry sauce for one week has also been linked to an increase in INR in one case report. In a small study in healthy young males, taking a high dose of 3 grams of cranberry juice concentrate capsules, equivalent to 57 grams of fruit daily, for 2 weeks produced a 30% increase in the area under the INR-time curve after a single 25-mg dose of warfarin. However, 3 very small clinical studies in patients stabilized on warfarin reported that cranberry juice 250 mL once or twice daily for 7 days (27% cranberry juice or pure cranberry juice) or 240 mL once daily for 14 days does not significantly increase INR or affect plasma warfarin levels. The reasons for these discrepant findings are unclear. It is possible that the form and dose of cranberry may play a role, as cranberry extracts and juices contain different constituents. Additionally, an in vitro study evaluating 5 different cranberry juices found varying effects, with only a cranberry concentrate, and not diluted cranberry juices, inhibiting CYP2C9. However, this concentrate did not inhibit CYP2C9 activity in humans.

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

Theoretically, cranberry might increase the levels and adverse effects of CYP2C9 substrates. However, research is conflicting.
There is contradictory evidence about the effect of cranberry on CYP2C9 enzymes. In vitro evidence suggests that flavonoids in cranberry inhibit CYP2C9 enzymes. However, clinical research shows that cranberry juice does not significantly affect the levels, metabolism, or elimination of the CYP2C9 substrates flurbiprofen or diclofenac. Also, in patients stabilized on warfarin, drinking cranberry juice 250 mL daily for 7 days does not significantly increase the anticoagulant activity of warfarin, a CYP2C9 substrate. Additional pharmacokinetic research shows that cranberry juice does not increase peak plasma concentrations or area under the concentration-time curve of warfarin.

Likelihood Unlikely Evidence B
Diclofenac (Voltaren, Others)

Theoretically, cranberry might modestly increase the levels and adverse effects of diclofenac.
In vitro evidence suggests that cranberry juice inhibits diclofenac metabolism by human liver microsomes. However, drinking cranberry juice does not seem to affect diclofenac metabolism in humans.

Likelihood Unlikely Evidence B
Cranberry seed Oil full monograph & interactions

Life's DHA3 drug types · 375 drugs

Antidiabetes Drugs

Theoretically, taking algal oil with antidiabetes drugs might interfere with the effects of antidiabetes drugs and reduce their effects.
Most algal oil contains docosahexaenoic acid (DHA). Clinical research in people with type 2 diabetes, including those taking antidiabetes drugs, shows that taking DHA 4 grams daily for 6 weeks increases fasting blood glucose levels by about 18 mg/dL when compared with taking olive oil.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking algal oil with antihypertensive drugs might increase the risk of hypotension.
Algal oil usually contains docosahexaenoic acid (DHA) and/or eicosapentaenoic acid (EPA). There is evidence that fish oil, which also contains DHA and EPA, can modestly lower blood pressure and might have additive effects in patients treated with antihypertensive drugs.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, algal oil may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
The risk of interaction is highest for algal oil containing high amounts (> 2 grams daily) of eicosapentaenoic acid (EPA), or EPA and docosahexaenoic acid (DHA). High doses of EPA or oils containing EPA and DHA can reduce platelet aggregation in humans. However, most algal oil contains very little EPA and larger amounts of DHA. While some conflicting evidence exist, most research shows that DHA alone does not affect blood clotting.

Likelihood Unlikely Evidence D
Life's DHA full monograph & interactions

Hi Omega Flax Seed Oil, Powder3 drug types · 293 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, using flaxseed oil in combination with anticoagulant or antiplatelet drugs might have additive effects and increase the risk of bleeding.
Small clinical studies show that consuming flaxseed oil might decrease platelet aggregation and increase bleeding time.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, combining flaxseed oil with other antihypertensive drugs might have additive effects and increase the risk of hypotension.
Some clinical evidence suggests that long-term consumption of flaxseed oil can modestly lower systolic and diastolic blood pressure, while other clinical research shows no effect.

Likelihood Possible Evidence D
Ezetimibe (Zetia)

Concomitant use of flaxseed oil and ezetimibe reduces the absorption of alpha-linolenic acid from flaxseed oil.
In one clinical study, concomitant consumption of ezetimibe 10 mg daily with flaxseed oil 2 grams providing 1 gram of alpha-linolenic acid daily blocked the absorption of alpha-linolenic acid, resulting in an overall reduction in alpha-linolenic plasma levels from baseline.

Likelihood Probable Evidence B
Hi Omega Flax Seed Oil, Powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Omega Green + DHA, from the product label.

Nikken Wellness Kenzen

See all Nikken Wellness Kenzen products
Name
Nikken Inc.
Street Address
190 W Crowther Ave Unit C
City
Placentia
State
CA
ZipCode
92870
Web Address
www.nikken.com
Pharmacist Counseling Corner

Omega Green + DHA by Nikken Wellness Kenzen: Common Questions

Does Omega Green + DHA by Nikken Wellness Kenzen interact with any medications?
Yes. Based on its ingredients, Omega Green + DHA has a known interaction with 980 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Omega Green + DHA contains 3 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.
Is this safe during pregnancy?
Cranberry and DHA are both rated likely safe in pregnancy, but flaxseed oil has insufficient safety data — there isn't enough information to know either way. Talk to your doctor or pharmacist for personalized advice before taking it while pregnant.
Is this safe while breastfeeding?
Cranberry is likely safe, and DHA supports infant development so it's generally recommended — but check with your provider first. Flaxseed oil has limited safety data during breastfeeding, so use it only with medical advice.
Does this help with high cholesterol?
No. The flaxseed oil in this product is rated possibly ineffective for high cholesterol. Additionally, the DHA may increase LDL cholesterol levels by about 8% in some people.
What side effects might I notice?
Diarrhea and gastrointestinal discomfort are the most common — cranberry and high-dose flaxseed oil both can cause these. Nausea and vomiting have been reported with cranberry at some doses. A small number of people experience dry mouth or indigestion from flaxseed oil.
Does this help prevent urinary tract infections?
Cranberry seed oil is possibly effective for UTIs, so there's evidence behind that use. However, cranberry is not a substitute for medical treatment if you have an active infection — talk to your doctor.
Does this help with brain function or cognitive decline?
The evidence isn't established in our data. Cranberry's benefit for age-related cognitive decline and DHA's benefit for cognitive function both lack reliable evidence to rate them.

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

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Omega Green + DHA label
Go deeper

The Full Monographs Behind Omega Green + DHA’s Ingredients

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

Herb & supplement monograph

Cranberry

Interacts with 712 drugs

Cranberry is best known for helping to prevent repeated urinary tract infections (UTIs) in some people, and the evidence here is moderate but mixed. It is not a reliable treatment for an act...

Read the full Cranberry monograph → Herb & supplement monograph

Flaxseed Oil

Interacts with 293 drugs

Flaxseed oil is a plant-based source of the omega-3 fatty acid ALA, which the body can partly convert to the omega-3s found in fish oil. It may help support heart health and provide healthy...

Read the full Flaxseed Oil monograph → Herb & supplement monograph

Algal Oil

Interacts with 375 drugs

Algal oil is a plant-based source of the omega-3 fats DHA and (in some products) EPA, making it a popular alternative to fish oil for vegetarians, vegans, and people who dislike fish. There...

Read the full Algal Oil monograph →
Sources

Sources & How We Checked

Omega Green + DHA'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 97 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.

Cranberry 33 references
  1. Anon. Possible interaction between warfarin and cranberry juice. Current Problems in Pharmacovigilance 2003;29:8. PubMed
  2. Greenblatt DJ, von Moltke LL, Perloff ES, et al. Interaction of flurbiprofen with cranberry juice, grape juice, tea, and fluconazole: in vitro and clinical studies. Clin Pharmacol Ther 2006;79:125-33. PubMed
  3. Hodek P, Trefil P, Stiborova M. Flavonoids-potent and versatile biologically active compounds interacting with cytochromes P450. Chem Biol Interact 2002;139:1-21.. PubMed
  4. Grant P. Warfarin and cranberry juice: An interaction? J Heart Valve Dis 2004;13:25-6.
  5. Suvarna R, Pirmohamed M, Henderson L. Possible interaction between warfarin and cranberry juice. BMJ 2003;327:1454. PubMed
  6. Li Z, Seeram NP, Carpenter CL, et al. Cranberry does not affect prothrombin time in male subjects on warfarin. J Am Diet Assoc 2006;106:2057-61. PubMed
  7. Lilja JJ, Backman JT, Neuvonen PJ. Effects of daily ingestion of cranberry juice on the pharmacokinetics of warfarin, tizanidine, and midazolam - probes of CYP2C9, CYP1A2 and CYP3A4. Clin Pharmacol The 2007:81:833-9. PubMed
  8. Wing DA, Rumney PJ, Preslicka CW, Chung JH. Daily cranberry juice for the prevention of asymptomatic bacteriuria in pregnancy: a randomized, controlled pilot study. J Urol 2008;180:1367-72. PubMed
  9. Mohammed Abdul MI, Jiang X, Williams KM, et al. Pharmacodynamic interaction of warfarin with cranberry but not with garlic in healthy subjects. Br J Pharmacol 2008;154:1691-700. PubMed
  10. McMurdo MET, Argo I, Phillips G, et al. Cranberry or trimethoprim for the prevention of recurrently urinary tract infections? A randomized controlled trial in older women. J Antimicrob Chemother 2009;63:389-95.
  11. Mergenhagen KA, Sherman O. Elevated International Normalized Ratio after concurrent ingestion of cranberry sauce and warfarin. Am J Health-Syst Pharm 2008;65:2113-6. PubMed
  12. Ansell J, McDonough M, Zhao Y, et al. The absence of an interaction between warfarin and cranberry juice: a randomized, double-blind trial. J Clin Pharmacol 2009;49:824-30. PubMed
  13. Haber SL, Cauthon KA, Raney EC. Cranberry and warfarin interaction: a case report and review of the literature. Consult Pharm 2012;27:58-65. PubMed
  14. Hamann GL, Campbell JD, George CM. Warfarin-cranberry juice interaction. Ann Pharmacother 2011;45:e17. PubMed
  15. Roberts D, Flanagan P. Case report: Cranberry juice and warfarin. Home Healthc Nurse 2011;29:92-7.
  16. Garcia-Calatayud, S., Larreina Cordoba, J. J., and Lozano De La Torre MJ. [Severe cranberry juice poisoning]. An.Esp.Pediatr. 2002;56(1):72-73.
  17. Patel, D. A., Gillespie, B., Sobel, J. D., Leaman, D., Nyirjesy, P., Weitz, M. V., and Foxman, B. Risk factors for recurrent vulvovaginal candidiasis in women receiving maintenance antifungal therapy: results of a prospective cohort study. Am J Obstet.Gy PubMed
  18. Isele, H. [Fatal bleeding under warfarin plus cranberry juice. Is it due to salicylic acid?]. MMW.Fortschr.Med 3-11-2004;146(11):13.
  19. Linsenmeyer, T. A., Harrison, B., Oakley, A., Kirshblum, S., Stock, J. A., and Millis, S. R. Evaluation of cranberry supplement for reduction of urinary tract infections in individuals with neurogenic bladders secondary to spinal cord injury. A prospecti
  20. McMurdo, M. E., Bissett, L. Y., Price, R. J., Phillips, G., and Crombie, I. K. Does ingestion of cranberry juice reduce symptomatic urinary tract infections in older people in hospital? A double-blind, placebo-controlled trial. Age Ageing 2005;34(3):256- PubMed
  21. Sylvan, L. and Justice, N. P. Possible interaction between warfarin and cranberry juice. Am Fam.Physician 9-15-2005;72(6):1000.
  22. Niklasson, A. and Andren, L. [Interaction between Waran and cranberry juice]. Lakartidningen 3-15-2006;103(11):853-854.
  23. Rindone, J. P. and Murphy, T. W. Warfarin-cranberry juice interaction resulting in profound hypoprothrombinemia and bleeding. Am J Ther 2006;13(3):283-284. PubMed
  24. Uesawa, Y. and Mohri, K. Effects of cranberry juice on nifedipine pharmacokinetics in rats. J Pharm Pharmacol 2006;58(8):1067-1072. PubMed
  25. Valentova, K., Stejskal, D., Bednar, P., Vostalova, J., Cihalik, C., Vecerova, R., Koukalova, D., Kolar, M., Reichenbach, R., Sknouril, L., Ulrichova, J., and Simanek, V. Biosafety, antioxidant status, and metabolites in urine after consumption of dried
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

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