Interactions on record — worth a quick check against your medications. Based on 1 of 3 ingredients. Check your meds →
Dietary supplement

TheraCran Ingredients & Drug Interactions

by Theralogix

TheraCran label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking TheraCran 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

TheraCran is a dietary supplement by Theralogix with 3 active ingredients. Its ingredients are commonly taken for urinary tract infection prevention, bladder health, antioxidant support.Based on those ingredients, 714 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Pure Cranberry (fruit) extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against TheraCran by Theralogix

Ask about any prescription or over-the-counter medication and we check it for interactions with TheraCran by Theralogix — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of TheraCran by Theralogix

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 Sep 17, 2026

What’s inside

Partial disclosure
Ingredient Transparency · database check
Partial

Most active ingredients list an amount, but at least one is hidden in a blend or missing.

Why this rating?
  • The label discloses an exact amount for 2 of its 3 active ingredients.

TheraCran contains 3 active ingredients. The main one is pure cranberry fruit extract, which concentrates the compounds that give cranberry its reputation for urinary tract health.

The other two active components are proanthocyanidins and other flavonoids—the plant compounds thought to do the work. Beyond these actives, the capsule also contains inactive ingredients (gelatin, tricalcium phosphate, calcium silicate, magnesium stearate, and silicon dioxide) that serve as fillers and binders.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: support and maintain normal urinary tract health.
  • We looked for evidence on: Urinary tract infections (UTIs), Catheter-related infections, Radiation-induced cystitis, Urinary odor, Overactive bladder, bladder health — and 1 related terms.
  • The strongest evidence on file: Cranberry is rated "Possibly Effective" for Urinary tract infections (UTIs) (Natural Medicines).
  • Also on file: Cranberry is rated "Insufficient Reliable Evidence To Rate" for Urinary odor, Overactive bladder, Catheter-related infections, Radiation-induced cystitis.

Cranberry is possibly effective for urinary tract infections (UTIs)—that's where the evidence is strongest. For age-related cognitive decline, benign prostatic hyperplasia, cancer, nonalcoholic fatty liver disease, and chronic fatigue syndrome, the evidence we hold isn't reliable enough to rate whether it works.

If you're considering TheraCran for something other than UTI prevention or treatment, talk with your doctor or pharmacist about what the current research actually shows for your specific situation.

The evidence, ingredient by ingredient Cranberry

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Cranberry is generally well tolerated as a food or supplement. The most common side effects are diarrhea and stomach upset.

Very large doses—3 to 4 liters of juice per day—are more likely to cause digestive problems, especially in young children, and concentrated supplement doses haven't been studied as thoroughly as food amounts. One patient reported skin redness and itching.

Because concentrated supplements are less well studied than everyday cranberry amounts, check with your doctor or pharmacist before starting, especially if you have a sensitive stomach. Cranberry in pregnancy and lactation is rated likely safe, but concentrated supplement doses fall into a grayer zone—discuss it with your provider if you're pregnant or nursing.

Side effects, ingredient by ingredient Cranberry

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Cranberry.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 715 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 TheraCran, double-check with your doctor or pharmacist if you take any statins or other cholesterol drugs (especially atorvastatin), blood thinners like warfarin, blood pressure medications like nifedipine, or pain relievers and anti-inflammatories. These are the medication types where cranberry has documented moderate or minor interactions that could change how your drugs work.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glancePartially disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

TheraCran is most relevant if you're trying to prevent or support treatment of urinary tract infections. If you take a statin, blood thinner, blood pressure medication, or pain reliever, you'll need to check your specific drugs against the interaction list below before starting—the risks are real.

Talk with your doctor or pharmacist about whether this product fits your medications and health situation.

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

Assessment coverage: 1 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 23, 2018.

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 TheraCran, straight from the product label.

Brand Theralogix
Net contents 180 Capsule(s)
Market status On market
Date entered into DSLD Mar 23, 2018
DSLD ID 174965
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Sugar 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 TheraCran by Theralogix, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
180
IngredientAmount% DV
Pure Cranberry (fruit) extract650 mg--
Proanthocyanidins0 NP--
Other Flavonoids16.25 mg--

Other ingredients: Gelatin, Tricalcium Phosphate, Calcium Silicate, Magnesium Stearate, Silicon Dioxide

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

Nutritional Science

Promotes urinary tract health

Why TheraCran?

How is TheraCran different? TheraCran is the first and only cranberry supplement that has been independently tested and certified for Proanthocyanidin (PAC) and other flavonoid content. PACs are the compounds that researchers have determined to be the active component of cranberries. For a cranberry supplement to be effective, it must provide an adequate dose of these PACs.

If the actual content of PACs in a cranberry supplement has not been measured and independently certified, the efficacy of that product is uncertain.

Many supplements on the market contain cranberry powder with only 1% PACs. As a result, it may take up to six capsules per day of these other supplements to get the recommended amount of active ingredients.

Many other cranberry products contain cellulose binders and may not be effective. TheraCran’s bioactivity has been tested in a clinical study at Rutgers University.

Why Theralogix?

Theralogix is committed to providing only the highest quality nutritional supplements. TheraCran is certified by NSF International, a not-for-profit organization that is the world leader in standards development and product certification for public health and safety. NSF has implemented the highest quality control standards in the supplements industry. The NSF mark is your assurance of a dietary supplement’s content accuracy, purity, and freedom from contaminants. Manufactured in an NSF-Registered Facility The facility where TheraCran and other Theralogix nutritional supplements are manufactured is registered with NSF and is in compliance with current Good Manufacturing Practices (cGMPs). These guidelines define the manufacturing processes, procedures, and documentation and assure the identity, strength, composition, and quality of the product. Medical Advisory Board Oversight The leading academic physicians and scientists of the Theralogix Medical Advisory Board meet regularly to oversee all product formulations. You can be sure that TheraCran is safe and reflects ongoing review of the most current scientific evidence. Visit www.theralogix.com to learn more.

TheraCran vs. Cranberry Juice? There are several reasons why TheraCran makes more sense than cranberry juice. TheraCran costs less than 60 cents a day. That’s 20–50 percent less expensive than the bioequivalent amount of cranberry juice.

In comparison, 10 ounces of cranberry juice cocktail contain 175 calories, more than a can of Coke. TheraCran doesn’t lose its bioactivity over time. Dried cranberry powder is very stable, but cranberry juice loses its bioactivity the longer it sits on a shelf.

Ordering Instructions Our auto-refill program includes free delivery. Automatic refills are timed to arrive just before you run out. You will only be charged when your order ships. You may cancel, postpone, or change the interval of your shipments at any time. Theralogix products are not available in stores. Order TheraCran without a prescription online at www.theralogix.com or by phone 24/7 at (800)449-4447.

Theralogix nutritional supplements are recommended for use under the supervision of a healthcare provider; customers referred by providers receive preferred pricing. Please use the Provider Referral Code (PRC) printed below when you order. This informs your healthcare provider of your order and provides you with preferred pricing. Provider Referral Code (PRC)

Independently Certified NSF Contents tested

FDA Statement of Identity

Cranberry Supplement

Formula

Standardized to contain 36 mg of Cranberry PACs per capsule

TheraCran is a standardized, high-quality, high-potency cranberry supplement formulated to support and maintain normal urinary tract health.

TheraCran contains the amount of PACs found in 8–10 ounces of 27% cranberry juice cocktail, which has shown benefit in research studies.

TheraCran is the first cranberry supplement to use a new high-potency cranberry powder containing greater than 2.5% PACs.

TheraCran is the only cranberry supplement that you can be sure delivers the same amount of bioactive PACs as found in 8-10 ounces of cranberry juice cocktail.

Brand IP Statement(s)

Independently content-certified by NSF International

NSF International Dietary Supplements Certification

Suggested/Recommended/Usage/Directions

Because TheraCran provides a more concentrated dose of PACs, only two capsules per day are needed: one in the morning and one in the evening.

Suggested Use: Take one capsule, twice a day; one capsule in the morning and one capsule in the evening, with or without food.

Formulation

TheraCran contains no cellulose or other agents that can bind to PACs, reducing their effectiveness.

TheraCran is virtually calorie- and sugar-free.

FDA Disclaimer Statement

This statement has not been reviewed by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General

WMCRPB 03-12

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

See for yourself

TheraCran by Theralogix label

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

TheraCran 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 TheraCran by Theralogix

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container180 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.

Pure Cranberry (fruit) extract

Interacts with
714 drugs
650 mg per serving

Cranberry is best known for helping to prevent repeated urinary tract infections (UTIs) in some people, and the evidence here is moderate but mixed. I...

Pure Cranberry (fruit) extract monograph & interactions

Proanthocyanidins

0 NP per serving Form: Proanthocyanidins

Other Flavonoids

16.25 mg per serving

Other (inactive) ingredients: Gelatin, Tricalcium Phosphate, Calcium Silicate, Magnesium Stearate, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

TheraCran by Theralogix Drug Interactions

Want to check YOUR meds against TheraCran?

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
714Drugs
645 Moderate 69 Minor

Ingredients driving the most interactions

Pure Cranberry (fruit) extract 714

Individual Drug Interactions

The ingredients in TheraCran interact with 714 drugs. Click any drug to see the details.

1 of the 3 ingredients in TheraCran interact with drugs. Each result below shows which ingredient is responsible. Pure Cranberry (fruit) extract

Each ingredient & the kinds of drugs it affects

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

Pure Cranberry (fruit) extract6 drug types · 714 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
Pure Cranberry (fruit) extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for TheraCran, from the product label.

Theralogix

See all Theralogix products
Name
Theralogix, LLC
Phone Number
(888) 899-3899
Web Address
www.theralogix.com
Pharmacist Counseling Corner

TheraCran by Theralogix: Common Questions

Does TheraCran by Theralogix interact with any medications?
Yes. Based on its ingredients, TheraCran has a known interaction with 714 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
TheraCran 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.
Does TheraCran actually prevent urinary tract infections?
Cranberry is rated possibly effective for UTIs—meaning there's decent evidence it may help prevent or support treatment of them, but it's not a guarantee and shouldn't replace medical treatment if you have an active infection. If you're prone to UTIs or trying to prevent one, talk with your doctor about whether adding this makes sense for you.
What side effects should I watch for?
Most people tolerate cranberry well, but diarrhea and stomach discomfort are the most common complaints. Very large doses increase the risk of digestive upset. One person reported skin redness and itching. If your stomach is sensitive, start low and see how you feel.
Can I take TheraCran if I'm pregnant or breastfeeding?
Cranberry in normal food amounts is rated likely safe in pregnancy and lactation. TheraCran is a concentrated supplement, though, and concentrated doses haven't been studied as much. Talk with your doctor or pharmacist to decide whether it's right for your situation.
What's the difference between taking this supplement and just eating cranberries or drinking cranberry juice?
TheraCran is a concentrated extract, so it delivers more of cranberry's active compounds in a smaller dose than you'd get from juice or whole berries. That concentration is part of why it hasn't been studied as thoroughly as everyday cranberry amounts—check with your provider before starting a concentrated supplement if you have any concerns.
Will TheraCran help with cognitive decline or cancer prevention?
The evidence we hold for those uses isn't reliable enough to say whether cranberry works for them. If you're considering TheraCran for a reason other than UTI support, ask your doctor or pharmacist what the current science actually shows for that condition.

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.

TheraCran label
Go deeper

The Full Monographs Behind TheraCran’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 714 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 →
Sources

Sources & How We Checked

TheraCran'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 33 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
  26. Royer, D. J., George, J. N., and Terrell, D. R. Thrombocytopenia as an adverse effect of complementary and alternative medicines, herbal remedies, nutritional supplements, foods, and beverages. Eur J Haematol 2010;84(5):421-429. PubMed
  27. Stapleton, A. E., Dziura, J., Hooton, T. M., Cox, M. E., Yarova-Yarovaya, Y., Chen, S., and Gupta, K. Recurrent urinary tract infection and urinary Escherichia coli in women ingesting cranberry juice daily: a randomized controlled trial. Mayo.Clin.Proc. PubMed
  28. Doad GJ, Kabange W. Cranberry juice, atorvastatin and back pain. J Med Assoc Ga 2014;103(1):14.
  29. Griffiths AP, Beddall A, Pegler S. Fatal haemopericardium and gastrointestinal haemorrhage due to possible interaction of cranberry juice with warfarin. J R Soc Promot Health 2008;128(6):324-6. PubMed
  30. Mellen CK, Ford M, Rindone JP. Effect of high-dose cranberry juice on the pharmacodynamics of warfarin in patients. Br J Clin Pharmacol 2010;70(1):139-42. PubMed
  31. Ushijima K, Tsuruoka S, Tsuda H, Hasegawa G, Obi Y, Kaneda T, Takahashi M, Maekawa T, Sasaki T, Koshimizu TA, Fujimura A. Cranberry juice suppressed the diclofenac metabolism by human liver microsomes, but not in healthy human subjects. Br J Clin Pharmaco PubMed
  32. Ngo N, Brantley SJ, Carrizosa DR, et al. The warfarin-cranberry juice interaction revisited: A systematic in vitro-in vivo evaluation. J Exp Pharmacol. 2010;2010(2):83-91.
  33. Williams G, Stothart CI, Hahn D, Stephens JH, Craig JC, Hodson EM. Cranberries for preventing urinary tract infections. Cochrane Database Syst Rev 2023;11(11):CD001321. PubMed

See these in context on the Cranberry 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.

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